WO2019056178A1 - Servo drive switch power supply and servo drive - Google Patents

Servo drive switch power supply and servo drive Download PDF

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Publication number
WO2019056178A1
WO2019056178A1 PCT/CN2017/102271 CN2017102271W WO2019056178A1 WO 2019056178 A1 WO2019056178 A1 WO 2019056178A1 CN 2017102271 W CN2017102271 W CN 2017102271W WO 2019056178 A1 WO2019056178 A1 WO 2019056178A1
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WO
WIPO (PCT)
Prior art keywords
chip
electrolytic capacitor
capacitor
chip resistor
diode
Prior art date
Application number
PCT/CN2017/102271
Other languages
French (fr)
Chinese (zh)
Inventor
邱宜忠
Original Assignee
深圳配天智能技术研究院有限公司
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Filing date
Publication date
Application filed by 深圳配天智能技术研究院有限公司 filed Critical 深圳配天智能技术研究院有限公司
Priority to PCT/CN2017/102271 priority Critical patent/WO2019056178A1/en
Priority to CN201780036083.1A priority patent/CN109417351A/en
Publication of WO2019056178A1 publication Critical patent/WO2019056178A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs

Definitions

  • the invention relates to the technical field of servo drives, and in particular to a servo driver switching power supply and a servo driver.
  • the technical problem to be solved by the present invention is to provide a servo driver switching power supply, which can provide a plurality of different voltage level DC power sources with better adjustment rates for the servo driver, and reduce electromagnetic interference in the circuit.
  • a technical solution adopted by the present invention is to provide a servo driver switching power supply, wherein the switching power supply comprises: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, and a self-feeding circuit.
  • the secondary side output circuit set includes at least one secondary side output circuit, the secondary side winding set including at least one secondary side winding
  • the at least one secondary side winding is coupled to the transformer primary winding and the self-feeding winding, and the at least one secondary side output circuit is respectively coupled to the at least one secondary side winding
  • the input a rectifying and filtering circuit coupled to one end of the primary winding of the transformer, the other end of the primary winding of the transformer being coupled to the monolithic power integrated circuit; the self-feeding circuit and the self-feeding winding and the monolithic power The integrated circuit is coupled.
  • the secondary side output circuit set includes at least one first type output circuit; wherein each Each of the first type of output circuits includes: a first diode having an anode connected to a corresponding end of the corresponding secondary winding; and a first electrolytic capacitor having a first end connected to the first diode a cathode having a second end connected to a corresponding non-identical end of the secondary winding; a first three-terminal regulator having a first end connected to the first diode and the first electrolytic capacitor a node between the second end connected to the second end of the first electrolytic capacitor; a second electrolytic capacitor having a first end connected to the third end of the first three-terminal regulator, and a second end connected to the second end of the first three-terminal regulator; a first chip capacitor having a first end connected to the first end of the second electrolytic capacitor and a second end connected to the a second end of the second electrolytic capacitor; a first chip resistor having a first end connected to the first end of the first chip capacitor
  • the secondary side output circuit set includes at least one second type output circuit; wherein each of the second type output circuits comprises: a second chip resistor, the first end of which is connected to the corresponding secondary side a second chip capacitor having a first end connected to the second end of the second chip resistor; and a second diode having an anode connected to the corresponding end of the corresponding secondary winding a node between the second chip resistor and a cathode connected to the second end of the second chip capacitor; a third electrolytic capacitor having a first end connected to the cathode of the second diode The second end is connected to the corresponding non-identical end of the secondary winding; the first end of the inductor is connected to the node between the cathode of the second diode and the third electrolytic capacitor; a fourth electrolytic capacitor having a first end connected to the second end of the inductor, a second end connected to the second end of the third electrolytic capacitor, and a third chip capacitor having a first end connected to the first end
  • the secondary side output circuit set includes at least one third type output circuit; wherein each of the third type output circuits comprises: a third diode having an anode connected to the corresponding first secondary side a fifth electrolytic capacitor having a first end connected to a cathode of the third diode and a second end connected to a corresponding non-identical end of the first secondary winding; a three-terminal regulator having a first end connected to a node between the third diode and the fifth electrolytic capacitor, a second end connected to a second end of the fifth electrolytic capacitor; An electrolytic capacitor having a first end connected to the third end of the second three-terminal regulator and a second end connected to the second end of the second three-terminal regulator; a fourth chip capacitor, a first end connected to the first end of the seventh electrolytic capacitor and a second end connected to the second end of the seventh electrolytic capacitor; a fourth chip resistor having a first end connected to the first end a first end of the four chip capacitor, and a second end of
  • the third type output circuit further includes a ninth electrolytic capacitor and a sixth chip capacitor: a ninth electrolytic capacitor, the first end of which is connected to the first end of the fourth chip resistor, and the second end thereof Connected to the second end of the fourth chip resistor; a sixth chip capacitor having a first end connected to the first end of the ninth electrolytic capacitor and a second end connected to the ninth electrolytic capacitor a second end; wherein the first end of the ninth electrolytic capacitor and the first end of the sixth chip capacitor are connected to a first output end of the third type output circuit; the ninth electrolytic capacitor The second end of the sixth chip capacitor and the second end of the sixth chip capacitor are connected to the second output end and the third output end of the third type output circuit; wherein the ninth electrolytic capacitor and the sixth sticker
  • the chip capacitor is a filter capacitor used to reduce interference to the control circuit.
  • the rectifying and filtering circuit comprises a rectifier bridge and a tenth electrolytic capacitor; the tenth electrolytic capacitor has a first end connected to a non-identical end of the corresponding transformer primary winding, and a second end thereof grounded; wherein the rectifier bridge
  • the method further includes: a seventh diode having a cathode connected to a node between the tenth electrolytic capacitor and a non-identical end of the transformer primary winding; and an eighth diode having a cathode connected to the seventh diode An anode of the tube, the anode of which is connected to the second end of the tenth electrolytic capacitor; the fifth diode having a cathode connected to the node between the tenth electrolytic capacitor and the seventh diode; A diode having a cathode connected to the anode of the fifth diode and an anode connected to a node between the tenth electrolytic capacitor and the eighth diode.
  • the self-feeding circuit comprises: a sixth chip resistor, the second end of which is connected to the same name end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded; the ninth diode The anode is connected to the first end of the sixth chip resistor; the eleventh electrolytic capacitor has a first end connected to the cathode of the ninth diode and a second end grounded.
  • the single-chip power integrated circuit includes a power management chip and a peripheral circuit; a seventh end of the power management chip is connected to a first end of the eleventh electrolytic capacitor of the self-feed circuit; The fifth end of the management chip is connected to the same name end of the primary winding of the transformer; the peripheral circuit further includes: a seventh chip capacitor, the first end of which is connected to the first end of the power management chip, and the second end thereof The end is connected to the eighth end of the power management chip; the seventh chip resistor has a first end connected to the third end of the power management chip and a second end connected to the seventh chip capacitor a second end; an eighth chip resistor having a first end connected to a node between the third end of the power management chip and the seventh chip resistor, and a second end connected to the seventh patch a second end of the resistor; wherein the second end of the eighth chip resistor is connected, the second end of the seventh chip resistor, the second end of the seventh chip capacitor, and the power management chip The eighth end of the node is grounded
  • the servo driver switching power supply further includes an input power supply undervoltage warning circuit
  • the input power supply undervoltage warning circuit includes: a ninth chip resistor, the first end of which is connected to the rectification and filtering power a first end of the tenth electrolytic capacitor of the circuit; a tenth chip resistor having a first end connected to the second end of the ninth chip resistor; and an eleventh chip resistor having a first end connected to a second end of the tenth chip resistor; a twelfth chip resistor having a first end connected to the second end of the eleventh chip resistor; and a thirteenth chip resistor having a first end connected a second end of the twelfth chip resistor; a fourteenth chip resistor having a first end connected to the second end of the thirteenth chip resistor; and a first Zener diode connected to the cathode a second end of the fourteenth chip resistor; a second Zener diode having a cathode connected to the anode
  • another technical solution adopted by the present invention is to provide a servo driver, wherein the servo driver includes a switching power supply.
  • the switching power supply includes: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, a self-feeding circuit, a self-feeding winding, a secondary side winding set, and a secondary side output circuit set;
  • the side output circuit set includes at least one secondary side output circuit including at least one secondary side winding, the at least one secondary side winding coupled to the transformer primary winding and the self-feeding winding And the at least one secondary side output circuit is respectively connected to the at least one secondary side winding;
  • the input rectification filter circuit is coupled to one end of the transformer primary winding, and the other end of the transformer primary winding is
  • the monolithic power integrated circuit is coupled to the self-feeding circuit and the self-feeding winding and the monolithic power integrated circuit.
  • the secondary side output circuit set includes at least one first type output circuit; wherein each of the first type output circuits comprises: a first diode having an anode connected to the corresponding secondary side winding a first electrolytic capacitor having a first end connected to a cathode of the first diode and a second end connected to a corresponding non-identical end of the secondary winding; the first three-terminal voltage regulator a first end connected to a node between the first diode and the first electrolytic capacitor, a second end connected to a second end of the first electrolytic capacitor, and a second electrolytic capacitor a first end connected to the first three-terminal regulator a third end connected to the second end of the first three-terminal regulator; a first chip capacitor having a first end connected to the first end of the second electrolytic capacitor, and a second end thereof is connected to the second end of the second electrolytic capacitor; a first chip resistor having a first end connected to the first end of the first chip capacitor and a second end connected to the a second end
  • the secondary side output circuit set includes at least one second type output circuit; wherein each of the second type output circuits comprises: a second chip resistor, the first end of which is connected to the corresponding secondary side a second chip capacitor having a first end connected to the second end of the second chip resistor; and a second diode having an anode connected to the corresponding end of the corresponding secondary winding a node between the second chip resistor and a cathode connected to the second end of the second chip capacitor; a third electrolytic capacitor having a first end connected to the cathode of the second diode The second end is connected to the corresponding non-identical end of the secondary winding; the first end of the inductor is connected to the node between the cathode of the second diode and the third electrolytic capacitor; a fourth electrolytic capacitor having a first end connected to the second end of the inductor, a second end connected to the second end of the third electrolytic capacitor, and a third chip capacitor having a first end connected to the first end
  • the secondary side output circuit set includes at least one third type output circuit; wherein each of the third type output circuits comprises: a third diode having an anode connected to the corresponding first secondary side a fifth electrolytic capacitor having a first end connected to a cathode of the third diode and a second end connected to a corresponding non-identical end of the first secondary winding; Three-terminal regulator, a first end connected to the node between the third diode and the fifth electrolytic capacitor, a second end connected to the second end of the fifth electrolytic capacitor; a seventh electrolytic capacitor, the first An end connected to the third end of the second three-terminal regulator, and a second end connected to the second end of the second three-terminal regulator; a fourth chip capacitor, the first end of which is connected to a first end of the seventh electrolytic capacitor, and a second end connected to the second end of the seventh electrolytic capacitor; a fourth chip resistor having a first end connected to the fourth chip capacitor One end, the second end of which is connected to the third
  • the third type output circuit further includes a ninth electrolytic capacitor and a sixth chip capacitor: a ninth electrolytic capacitor, the first end of which is connected to the first end of the fourth chip resistor, and the second end thereof Connected to the second end of the fourth chip resistor; a sixth chip capacitor having a first end connected to the first end of the ninth electrolytic capacitor and a second end connected to the ninth electrolytic capacitor a second end; wherein the first end of the ninth electrolytic capacitor and the first end of the sixth chip capacitor are connected to the third type of output power a first output end of the circuit; a second end of the ninth electrolytic capacitor and a second end of the sixth chip capacitor are connected to the second output end and the third output end of the third type output circuit;
  • the ninth electrolytic capacitor and the sixth chip capacitor are filter capacitors for reducing interference to the control circuit.
  • the rectifying and filtering circuit comprises a rectifier bridge and a tenth electrolytic capacitor; the tenth electrolytic capacitor has a first end connected to a non-identical end of the corresponding transformer primary winding, and a second end thereof grounded; wherein the rectifier bridge
  • the method further includes: a seventh diode having a cathode connected to a node between the tenth electrolytic capacitor and a non-identical end of the transformer primary winding; and an eighth diode having a cathode connected to the seventh diode An anode of the tube, the anode of which is connected to the second end of the tenth electrolytic capacitor; the fifth diode having a cathode connected to the node between the tenth electrolytic capacitor and the seventh diode; A diode having a cathode connected to the anode of the fifth diode and an anode connected to a node between the tenth electrolytic capacitor and the eighth diode.
  • the self-feeding circuit comprises: a sixth chip resistor, the second end of which is connected to the same name end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded; the ninth diode The anode is connected to the first end of the sixth chip resistor; the eleventh electrolytic capacitor has a first end connected to the cathode of the ninth diode and a second end grounded.
  • the single-chip power integrated circuit includes a power management chip and a peripheral circuit; a seventh end of the power management chip is connected to a first end of the eleventh electrolytic capacitor of the self-feed circuit; The fifth end of the management chip is connected to the same name end of the primary winding of the transformer; the peripheral circuit further includes: a seventh chip capacitor, the first end of which is connected to the first end of the power management chip, and the second end thereof The end is connected to the eighth end of the power management chip; the seventh chip resistor has a first end connected to the third end of the power management chip and a second end connected to the seventh chip capacitor a second end; an eighth chip resistor having a first end connected to a node between the third end of the power management chip and the seventh chip resistor, and a second end connected to the seventh patch a second end of the resistor; wherein the second end of the eighth chip resistor is connected, the second end of the seventh chip resistor, the second end of the seventh chip capacitor, and the power management chip The eighth end of the node is grounded
  • the switching power supply further includes an input power supply undervoltage warning circuit
  • the input power supply undervoltage warning circuit includes: a ninth chip resistor, the first end of which is connected to the tenth electrolytic capacitor of the rectifying and filtering circuit a first end; a tenth chip resistor having a first end connected to the second end of the ninth chip resistor; and an eleventh chip resistor having a first end connected to the tenth chip resistor a second end; a twelfth chip resistor having a first end connected to the second end of the eleventh chip resistor; a thirteenth chip resistor having a first end connected to the twelfth chip resistor The second end; the fourteenth chip resistor, the first end of which Connecting to the second end of the thirteenth chip resistor; a first Zener diode having a cathode connected to the second end of the fourteenth chip resistor; and a second Zener diode having a cathode connected to the An anode of the first Zener diode
  • the invention has the beneficial effects that the servo drive switching power supply is composed of the input rectification and filtering circuit, the monolithic power integrated circuit, the transformer primary winding, the self-feeding circuit, the self-feeding winding, the secondary side winding set and the secondary side output circuit set. It provides multi-channel DC power supply with different adjustment rate for servo drive and reduces electromagnetic interference.
  • FIG. 1 is a schematic structural view of a first embodiment of a switching power supply of the present invention
  • FIG. 2 is a circuit diagram of an embodiment of a secondary side output circuit set of the present invention.
  • FIG. 3 is a schematic structural view of a second embodiment of a switching power supply of the present invention.
  • FIG. 4 is a detailed circuit diagram of a switching power supply of the present invention.
  • Fig. 5 is a schematic structural view of a servo driver of the present invention.
  • the servo driver switching power supply includes an input rectification and filtering circuit 11, a monolithic power integrated circuit 12, a transformer primary winding N1, and a self-feeding circuit 13. Self-feed winding N7, secondary winding set 15 and secondary output circuit set 14.
  • the secondary side output circuit set 14 includes at least one secondary side output circuit
  • the secondary side winding set 15 includes at least one secondary side winding N2-N6, at least one secondary side winding and the transformer primary winding N1 and
  • the self-feed winding N7 is coupled, and at least one secondary side output circuit is respectively connected to the at least one secondary side winding N2-N6.
  • the input rectification filter circuit 11 is coupled to one end of the transformer primary winding N1, and the other end of the transformer primary winding N1 is coupled to the monolithic power integrated circuit 12.
  • the self-feed circuit 13 is coupled to the self-feed winding N7 and the monolithic power integrated circuit 12.
  • FIG. 2 is a circuit diagram of an embodiment of a secondary side output circuit set of the present invention.
  • the present embodiment provides three secondary side output circuits.
  • the secondary side output circuit set 14 includes at least one first type output circuit 141, Two types of output circuits 142 or third type output circuits 143.
  • the first type of output circuit 141 includes a first diode D1, a first electrolytic capacitor C1, a first three-terminal regulator U1, a second electrolytic capacitor C2, a first chip capacitor MC1, and a first chip resistor R1.
  • a first diode D1 having an anode connected to a terminal of the same name of the corresponding secondary winding N1;
  • a first electrolytic capacitor C1 having a first end connected to the cathode of the first diode D1 and a second end connected to the second end Corresponding non-identical end of the secondary winding N1;
  • the first three-terminal regulator U1 has a first end connected to a node between the first diode D1 and the first electrolytic capacitor C1, and a second end connected to the second end a second end of the first electrolytic capacitor C1;
  • a second end of the second electrolytic capacitor C2 the first end of which is connected to the third end of the first three-terminal regulator U1, and the second end of which is connected
  • the third end of the first three-terminal regulator U1, the first end of the second electrolytic capacitor C2, the first end of the first chip capacitor MC1, and the node of the first end of the first chip resistor R1 are connected as a first output end of the first type of output circuit 141; and a non-identical end of the corresponding secondary side winding N1, a second end of the first electrolytic capacitor C1, a second end of the first three-terminal regulator U1, and a second end
  • the second end of the second electrolytic capacitor C2, the second end of the first chip capacitor MC1, and the second end of the first chip resistor R1 serve as a second output terminal of the first type output circuit 141.
  • the voltage difference can be any value.
  • the circuit can provide 5V DC power supply, which can provide +5V power for FPGA control circuit and other circuits.
  • a three-terminal regulator is used in this embodiment, which improves the circuit cross adjustment rate and load adjustment rate.
  • the second type output circuit 142 includes: a second chip resistor R2, a second chip capacitor MC2, a second diode D2, a third electrolytic capacitor C3, an inductor L, a fourth electrolytic capacitor C4, and a third chip capacitor MC3. And a third chip resistor R3.
  • the inductor L has a first end connected to the second diode a node between the cathode of D2 and the third electrolytic capacitor C3; a fourth electrolytic capacitor C4 having a first end connected to the second end of the inductor L and a second end connected to the second end of the third electrolytic capacitor C3;
  • the second end of the inductor L is connected, the first end of the fourth electrolytic capacitor C4, the first end of the third chip capacitor MC3, and the node of the first end of the third chip resistor R3 are used as the second type output circuit 142.
  • a node of the second end of the third chip resistor R3 serves as a second output terminal of the second type output circuit 142, and the second output terminal is grounded.
  • the third type output circuit 143 includes: a third diode D3, a fifth electrolytic capacitor C5, a second three-terminal regulator U2, a seventh electrolytic capacitor C7, a fourth chip capacitor MC4, a fourth chip resistor R4, The fourth diode D4, the sixth electrolytic capacitor C6, the third three-terminal regulator U3, the eighth electrolytic capacitor C8, the fifth chip capacitor MC5, and the fifth chip resistor R5.
  • a third diode D3 having an anode connected to the same end of the corresponding first secondary winding N3; a fifth electrolytic capacitor C5 having a first end connected to the cathode of the third diode D3 and a second end Connected to a non-identical end of the corresponding first secondary winding N3; a second three-terminal regulator U2, The first end is connected to the node between the third diode D3 and the fifth electrolytic capacitor C5, the second end of which is connected to the second end of the fifth electrolytic capacitor C5; the seventh electrolytic capacitor C7 has the first end connected to a third end of the second three-terminal regulator U2, and a second end connected to the second end of the second three-terminal regulator U2; a fourth chip capacitor MC4, the first end of which is connected to the seventh electrolytic capacitor a first end of C7, the second end of which is connected to the second end of the seventh electrolytic capacitor C7; the fourth chip resistor R4 has a first end connected to the first end of
  • the third end of the second three-terminal regulator U2, the first end of the seventh electrolytic capacitor C7, the first end of the fourth chip capacitor MC4, and the node of the first end of the fourth chip resistor R4 are connected as a first output end of the third type output circuit 143; and a non-identical end of the corresponding first secondary winding N3, a second end of the second secondary winding N4, a second end of the fifth electrolytic capacitor C5, and a second end
  • the first end of the six electrolytic capacitor C6, the second end of the second three-terminal regulator U2, the first end of the third three-terminal regulator U3, the second end of the seventh electrolytic capacitor C7, and the eighth electrolytic capacitor C8 The first end, the second end of the fourth chip capacitor MC4, the first end of the fifth chip capacitor MC5, the second end of the fourth chip resistor R4, and the node of the first end of the fifth chip resistor R5 a second output terminal of the third type output circuit 143; a third end connected to the third three-terminal
  • This circuit reduces the interference to the control circuit by adding a filter capacitor.
  • the first secondary side winding N3 and the second secondary side winding N4 adopt a free flying line, and the enameled wire lead end is provided with a different color sleeve, and the electric wire is directly led out to the PCB board for welding, and the PIN of the transformer skeleton can be solved. The problem of insufficient number of feet.
  • the third type output circuit 143 further includes a ninth electrolytic capacitor C9 and a sixth patch. Capacitor MC6.
  • the ninth electrolytic capacitor C9 has a first end connected to the first end of the fourth chip resistor R4 and a second end connected to the second end of the fourth chip resistor R4; the sixth chip capacitor MC6, the first One end is connected to the first end of the ninth electrolytic capacitor C9, and the second end thereof is connected to the second end of the ninth electrolytic capacitor C9.
  • the first end of the ninth electrolytic capacitor C9 and the first end of the sixth chip capacitor MC6 are connected to the first output end of the third type output circuit 143; the second end of the ninth electrolytic capacitor C9 and the sixth patch The second end of the capacitor MC6 is connected to the second output terminal and the third output terminal of the third type output circuit 143.
  • the addition of the electrolytic capacitor and the chip capacitor design at the hot end can effectively reduce the electromagnetic field interference caused by the fan rotation on the positive and negative voltages of the control circuit.
  • FIG. 3 is a schematic structural view of a second embodiment of the switching power supply of the present invention.
  • the switching power supply further includes an input power undervoltage warning circuit 16.
  • the input power undervoltage warning circuit 16 is coupled to the rectification and filtering circuit 11. When the received power supply is lower than the designed voltage value, an alarm signal for input power supply undervoltage is issued.
  • the switching power supply includes: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, a self-feeding circuit, a self-feeding winding, and a secondary winding. Set and secondary side output circuit set, input power supply under voltage alarm circuit.
  • the rectifier filter circuit includes a rectifier bridge and a tenth electrolytic capacitor C10.
  • the tenth electrolytic capacitor C10 has a first end connected to a non-identical end of the corresponding transformer primary winding and a second end connected.
  • the rectifier bridge includes: a seventh diode D7 whose cathode is connected to a node between the tenth electrolytic capacitor C10 and a non-identical end of the primary winding of the transformer; and an eighth diode D8 whose cathode is connected to the seventh The anode of the diode D7, the anode of which is connected to the second end of the tenth electrolytic capacitor C10; the fifth diode D5 whose cathode is connected to the node between the tenth electrolytic capacitor C10 and the seventh diode D7;
  • the sixth diode has a cathode connected to the anode of the fifth diode D5 and an anode connected to a node between the tenth
  • the self-feeding circuit includes a sixth chip resistor R6, a ninth diode D9, and an eleventh electrolytic capacitor C11.
  • the ninth diode D9 has an anode connected to the sixth chip resistor R6 The first end;
  • the eleventh electrolytic capacitor C11 has a first end connected to the cathode of the ninth diode D9 and a second end grounded.
  • a monolithic power integrated circuit including a power management chip and peripheral circuits.
  • the seventh end of the power management chip is connected to the first end of the eleventh electrolytic capacitor C11 of the self-feed circuit; the fifth end of the power management chip Connect to the same name end of the primary winding of the transformer.
  • the peripheral circuit includes a seventh chip capacitor MC7 having a first end connected to the first end of the power management chip and a second end connected to the eighth end of the power management chip; and a seventh chip resistor R7, The first end is connected to the third end of the power management chip, and the second end is connected to the second end of the seventh chip capacitor MC7; the eighth chip resistor R8 is connected to the third end of the power management chip a node between the terminal and the seventh chip resistor R7, the second end of which is connected to the second end of the seventh chip resistor R7; wherein, the second end of the eighth chip resistor R8 is connected, and the seventh chip resistor R7 The second end of the second end, the seventh chip capacitor MC7 is grounded to the node of the eighth end of the power management chip.
  • the power management chip selects ICE3BR0665J for frequency hopping to reduce electromagnetic interference and improve circuit stability.
  • the input power undervoltage warning circuit includes a ninth chip resistor R9, the first end of which is connected to the first end of the tenth electrolytic capacitor C10 of the rectifying and filtering circuit, and the tenth chip resistor R10, the first end of which is connected to the ninth a second end of the chip resistor R9; an eleventh chip resistor R11, the first end of which is connected to the second end of the tenth chip resistor R10; and the twelfth chip resistor R12, the first end of which is connected to the tenth a second end of the chip resistor R11; a thirteenth chip resistor R13, the first end of which is connected to the second end of the twelfth chip resistor R12; the fourteenth chip resistor R14, the first end of which is connected to a second end of the thirteenth chip resistor R13; a first Zener diode ZD1 whose cathode is connected to a second end of the fourteenth chip resistor R14; and a second Zener
  • the voltage regulator tube when the input rectification filter circuit input power is lower than the preset voltage value, the voltage regulator tube is turned on, the photocoupler illumination tube emits light, the phototransistor receiving light source reaches saturation, and an alarm signal of the input power supply undervoltage is issued.
  • the secondary side winding set and the secondary side output circuit set are described in detail in the above embodiments. For details, refer to the detailed description in the above embodiments, and the details are not described herein.
  • FIG. 5 is a block diagram of the servo driver of the present invention.
  • the servo driver includes a switching power supply 51, a control circuit 52, and an intelligent power module IPM53.
  • the switching power supply 51 is used to supply DC power supplies of different voltage levels to the control circuit 52, the intelligent power module IPM53 and the like.
  • the switching power supply includes an input rectification and filtering circuit, a monolithic power integrated circuit, and a transformer primary Winding, self-feeding circuit, self-feeding winding, secondary side winding set and secondary side output circuit set.
  • the switching power supply further includes an input power supply undervoltage warning circuit.

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Abstract

The present invention discloses a servo drive switch power supply and a servo drive. The switch power supply comprises: an input rectifying and filtering circuit, an integrated monolithic power circuit, a primary transformer winding, a self-feeding circuit, a self-feeding winding, a secondary side winding set, and a secondary side output circuit set. The secondary side output circuit set comprises at least one secondary side output circuit. The secondary side winding set comprises at least one secondary side winding. The at least one secondary side winding is coupled with the primary transformer winding and the self-feeding winding, and the at least one secondary side output circuit and the at least one secondary side winding are respectively and correspondingly connected. The input rectifying and filtering circuit is coupled with one end of the primary transformer winding, and the other end of the primary transformer winding is coupled with the integrated monolithic power circuit. The self-feeding circuit is coupled with the self-feeding winding and the integrated monolithic power circuit. The switch power supply provides servo drivers with a plurality of DC power supplies of different voltage levels with better regulating rates while also reducing electromagnetic interference.

Description

一种伺服驱动器开关电源及伺服驱动器Servo driver switching power supply and servo driver 【技术领域】[Technical Field]
本发明涉及伺服驱动器技术领域，特别是涉及一种伺服驱动器开关电源及伺服驱动器。The invention relates to the technical field of servo drives, and in particular to a servo driver switching power supply and a servo driver.
【背景技术】【Background technique】
随着电子技术的不断发展，伺服驱动器得到广泛的运用。随着技术的不断更新，客户对伺服驱动器的要求越来越高。伺服驱动器内部存在各种各样的单元电路，为了满足其体积小、功能多及运行稳定的需求，对伺服驱动器各种单元电路的电磁兼容性提出了更高的要求。With the continuous development of electronic technology, servo drives have been widely used. As technology continues to evolve, customers are increasingly demanding servo drives. There are various unit circuits in the servo driver. In order to meet the requirements of small size, large function and stable operation, higher requirements are placed on the electromagnetic compatibility of various unit circuits of the servo driver.
为了满足伺服驱动器给不同电路提供不同电压等级的直流电源，需要设计多个开关电源，不仅设计的工作量大，产品成本高，如果伺服驱动器开关电源输出电压发生较大的波动会使整个伺服驱动器的逆变器不能工作，产生控制电源欠压保护，或过压损坏元器件。同时伺服驱动器开头电源还会产生大量电磁干扰，影响其它单元模块的工作。In order to meet the servo drive to provide different voltage levels of DC power to different circuits, it is necessary to design multiple switching power supplies, which not only has a large design workload, but also has high product cost. If the servo drive switching power supply output voltage fluctuates greatly, the whole servo drive will be caused. The inverter does not work, generating control power supply undervoltage protection, or overvoltage damage to components. At the same time, the power supply at the beginning of the servo drive also generates a large amount of electromagnetic interference, which affects the operation of other unit modules.
【发明内容】[Summary of the Invention]
本发明主要解决的技术问题是提供一种伺服驱动器开关电源，能够为伺服驱动器提供较优调整率的多路不同电压等级直流电源，并且减少电路中电磁的干扰。The technical problem to be solved by the present invention is to provide a servo driver switching power supply, which can provide a plurality of different voltage level DC power sources with better adjustment rates for the servo driver, and reduce electromagnetic interference in the circuit.
为解决上述技术问题，本发明采用的一个技术方案是：提供一种伺服驱动器开关电源，其中，所述开关电源包括：输入整流滤波电路、单片功率集成电路、变压器初级绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集；所述二次侧输出电路集包括至少一个二次侧输出电路，所述二次侧绕组集包括至少一个二次侧绕组，所述至少一个二次侧绕组与所述变压器初级绕组和所述自馈电绕组耦合，且所述至少一个二次侧输出电路与所述至少一个二次侧绕组分别对应连接；所述输入整流滤波电路与所述变压器初级绕组的一端耦接，所述变压器初级绕组的另一端与单片功率集成电路耦接；所述自馈电电路与所述自馈电绕组及所述单片功率集成电路耦接。In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a servo driver switching power supply, wherein the switching power supply comprises: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, and a self-feeding circuit. a self-feeding winding, a secondary side winding set, and a secondary side output circuit set; the secondary side output circuit set includes at least one secondary side output circuit, the secondary side winding set including at least one secondary side winding The at least one secondary side winding is coupled to the transformer primary winding and the self-feeding winding, and the at least one secondary side output circuit is respectively coupled to the at least one secondary side winding; the input a rectifying and filtering circuit coupled to one end of the primary winding of the transformer, the other end of the primary winding of the transformer being coupled to the monolithic power integrated circuit; the self-feeding circuit and the self-feeding winding and the monolithic power The integrated circuit is coupled.
其中，所述二次侧输出电路集包括至少一个第一类型输出电路；其中，每 个所述第一类型输出电路分别包括：第一二极管，其阳极连接至对应的二次侧绕组的同名端；第一电解电容，其第一端连接至所述第一二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；第一三端稳压器，其第一端连接至所述第一二极管与所述第一电解电容之间的节点，其第二端连接至所述第一电解电容的第二端；第二电解电容，其第一端连接至所述第一三端稳压器的第三端，而其第二端连接至所述第一三端稳压器的第二端；第一贴片电容，其第一端连接至所述第二电解电容的第一端，而其第二端连接至所述第二电解电容的第二端；第一贴片电阻，其第一端连接至所述第一贴片电容的第一端，而其第二端连接至所述第一贴片电容的第二端；其中，连接所述第一三端稳压器的第三端、所述第二电解电容的第一端、所述第一贴片电容的第一端和所述第一贴片电阻的第一端的节点作为所述第一类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第一电解电容的第二端、所述第一三端稳压器的第二端、所述第二电解电容的第二端、所述第一贴片电容的第二端、所述第一贴片电阻的第二端的节点作为所述第一类型输出电路的第二输出端。Wherein the secondary side output circuit set includes at least one first type output circuit; wherein each Each of the first type of output circuits includes: a first diode having an anode connected to a corresponding end of the corresponding secondary winding; and a first electrolytic capacitor having a first end connected to the first diode a cathode having a second end connected to a corresponding non-identical end of the secondary winding; a first three-terminal regulator having a first end connected to the first diode and the first electrolytic capacitor a node between the second end connected to the second end of the first electrolytic capacitor; a second electrolytic capacitor having a first end connected to the third end of the first three-terminal regulator, and a second end connected to the second end of the first three-terminal regulator; a first chip capacitor having a first end connected to the first end of the second electrolytic capacitor and a second end connected to the a second end of the second electrolytic capacitor; a first chip resistor having a first end connected to the first end of the first chip capacitor and a second end connected to the second chip capacitor a third end connected to the first three-terminal regulator, a first end of the second electrolytic capacitor, and the first chip capacitor a first end and a node of the first end of the first chip resistor as a first output end of the first type of output circuit; and a corresponding non-identical end of the secondary side winding, the first a second end of the electrolytic capacitor, a second end of the first three-terminal regulator, a second end of the second electrolytic capacitor, a second end of the first chip capacitor, the first patch A node of the second end of the resistor acts as a second output of the first type of output circuit.
其中，所述二次侧输出电路集包括至少一个第二类型输出电路；其中，每个所述第二类型输出电路分别包括：第二贴片电阻，其第一端连接至对应的二次侧绕组的同名端；第二贴片电容，其第一端连接至所述第二贴片电阻的第二端；第二二极管，其阳极连接至对应的所述二次侧绕组的同名端与所述第二贴片电阻之间的节点，其阴极连接至所述第二贴片电容的第二端；第三电解电容，其第一端连接至所述第二二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；电感，其第一端连接至所述第二二极管的阴极与所述第三电解电容之间的节点；第四电解电容，其第一端连接至所述电感的第二端，其第二端连接至所述第三电解电容的第二端；第三贴片电容，其第一端连接至所述第四电解电容的第一端，而其第二端连接至所述第四电解电容的第二端；第三贴片电阻，其第一端连接至所述第三贴片电容的第一端，而其第二端连接至所述第三贴片电容的第二端；其中，连接所述电感的第二端、所述第四电解电容的第一端、所述第三贴片电容的第一端和所述第三贴片电阻的第一端的节点作为所述第二类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第三电解电容的第二端、所述第四电解电容的第二端、所述第三贴片电容的第二端和所述第三贴片电阻的第二端的节点作为所述第二类型输出电 路的第二输出端，且第二输出端接地。Wherein the secondary side output circuit set includes at least one second type output circuit; wherein each of the second type output circuits comprises: a second chip resistor, the first end of which is connected to the corresponding secondary side a second chip capacitor having a first end connected to the second end of the second chip resistor; and a second diode having an anode connected to the corresponding end of the corresponding secondary winding a node between the second chip resistor and a cathode connected to the second end of the second chip capacitor; a third electrolytic capacitor having a first end connected to the cathode of the second diode The second end is connected to the corresponding non-identical end of the secondary winding; the first end of the inductor is connected to the node between the cathode of the second diode and the third electrolytic capacitor; a fourth electrolytic capacitor having a first end connected to the second end of the inductor, a second end connected to the second end of the third electrolytic capacitor, and a third chip capacitor having a first end connected to the first end a first end of the fourth electrolytic capacitor, and a second end of the fourth electrolytic capacitor connected to the fourth electrolytic capacitor a second chip resistor having a first end connected to the first end of the third chip capacitor and a second end connected to the second end of the third chip capacitor; wherein a second end of the inductor, a first end of the fourth electrolytic capacitor, a first end of the third chip capacitor, and a node of the first end of the third chip resistor as the second type of output a first output end of the circuit; and a non-identical end of the corresponding secondary winding, a second end of the third electrolytic capacitor, a second end of the fourth electrolytic capacitor, and a third patch a node of the second end of the capacitor and the second end of the third chip resistor as the second type of output power The second output of the circuit and the second output is grounded.
其中，所述二次侧输出电路集包括至少一个第三类型输出电路；其中，每个所述第三类型输出电路分别包括：第三二极管，其阳极连接至对应的第一二次侧绕组的同名端；第五电解电容，其第一端连接至所述第三二极管的阴极，而其第二端连接至对应的所述第一二次侧绕组的非同名端；第二三端稳压器，其第一端连接至所述第三二极管与所述第五电解电容之间的节点，其第二端连接至所述第五电解电容的第二端；第七电解电容，其第一端连接至所述第二三端稳压器的第三端，而其第二端连接至所述第二三端稳压器的第二端；第四贴片电容，其第一端连接至所述第七电解电容的第一端，而其第二端连接至所述第七电解电容的第二端；第四贴片电阻，其第一端连接至所述第四贴片电容的第一端，而其第二端连接至所述第四贴片电容的第二端；第四二极管，其阴极连接至对应的第二二次侧绕组的非同名端；第六电解电容，其第一端连接至对应的所述第二二次侧绕组的同名端，而其第二端连接至所述第四二极管的阳极，第三三端稳压器，其第一端连接至所述第六电解电容的第一端，其第二端连接至所述第四二极管与所述第六电解电容之间的节点；第八电解电容，其第一端连接至所述第三三端稳压器的第一端，而其第二端连接至所述第三三端稳压器的第三端；第五贴片电容，其第一端连接至所述第八电解电容的第一端，而其第二端连接至所述第八电解电容的第二端；第五贴片电阻，其第一端连接至所述第五贴片电容的第一端，而其第二端连接至所述第五贴片电容的第二端；其中，连接所述第二三端稳压器的第三端、所述第七电解电容的第一端、所述第四贴片电容的第一端和所述第四贴片电阻的第一端的节点作为所述第三类型输出电路的第一输出端；而连接对应的所述第一二次侧绕组的非同名端、所述第二二次侧绕组的同名端、所述第五电解电容的第二端、所述第六电解电容的第一端、所述第二三端稳压器的第二端、所述第三三端稳压器的第一端、所述第七电解电容的第二端、所述第八电解电容的第一端、所述第四贴片电容的第二端、所述第五贴片电容的第一端、所述第四贴片电阻的第二端和所述第五贴片电阻的第一端的节点作为所述第三类型输出电路的第二输出端；连接所述第三三端稳压器的第三端、所述第八电解电容的第二端、所述第五贴片电容的第二端和所述第五贴片电阻的第二端的节点作为所述第三类型输出电路的第三输出端；其中，所述第一二次侧绕组与所述第二二次侧绕组采用自由飞线，直接将电线引出焊接在印刷电路板上。 Wherein the secondary side output circuit set includes at least one third type output circuit; wherein each of the third type output circuits comprises: a third diode having an anode connected to the corresponding first secondary side a fifth electrolytic capacitor having a first end connected to a cathode of the third diode and a second end connected to a corresponding non-identical end of the first secondary winding; a three-terminal regulator having a first end connected to a node between the third diode and the fifth electrolytic capacitor, a second end connected to a second end of the fifth electrolytic capacitor; An electrolytic capacitor having a first end connected to the third end of the second three-terminal regulator and a second end connected to the second end of the second three-terminal regulator; a fourth chip capacitor, a first end connected to the first end of the seventh electrolytic capacitor and a second end connected to the second end of the seventh electrolytic capacitor; a fourth chip resistor having a first end connected to the first end a first end of the four chip capacitor, and a second end of which is coupled to the second end of the fourth chip capacitor; a fourth diode a cathode connected to the non-identical end of the corresponding second secondary winding; a sixth electrolytic capacitor having a first end connected to the corresponding end of the corresponding second secondary winding and a second end connected to An anode of the fourth diode, a third three-terminal regulator having a first end connected to the first end of the sixth electrolytic capacitor and a second end connected to the fourth diode a node between the sixth electrolytic capacitor; an eighth electrolytic capacitor having a first end connected to the first end of the third three-terminal regulator and a second end connected to the third three-terminal regulated a third end of the device; a fifth chip capacitor having a first end connected to the first end of the eighth electrolytic capacitor and a second end connected to the second end of the eighth electrolytic capacitor; a chip resistor having a first end connected to the first end of the fifth chip capacitor and a second end connected to the second end of the fifth chip capacitor; wherein the second three ends are connected a third end of the press, a first end of the seventh electrolytic capacitor, a first end of the fourth chip capacitor, and a first of the fourth chip resistor a node as a first output end of the third type of output circuit; and a corresponding non-identical end of the first secondary winding, a second end of the second secondary winding, and the fifth electrolysis a second end of the capacitor, a first end of the sixth electrolytic capacitor, a second end of the second three-terminal regulator, a first end of the third three-terminal regulator, and a seventh electrolysis a second end of the capacitor, a first end of the eighth electrolytic capacitor, a second end of the fourth chip capacitor, a first end of the fifth chip capacitor, and a fourth chip resistor a second end and a node of the first end of the fifth chip resistor as a second output end of the third type output circuit; a third end connected to the third three-terminal regulator, the eighth electrolysis a node of the second end of the capacitor, the second end of the fifth chip capacitor, and the second end of the fifth chip resistor as a third output of the third type of output circuit; wherein the first The secondary winding and the second secondary winding are free flying wires, and the wires are directly led out and soldered on the printed circuit board.
其中，所述第三类型输出电路进一步包括第九电解电容及第六贴片电容：第九电解电容，其第一端连接至所述第四贴片电阻的第一端，而其第二端连接至所述第四贴片电阻的第二端；第六贴片电容，其第一端连接至所述第九电解电容的第一端，而其第二端连接至所述第九电解电容的第二端；其中，所述第九电解电容的第一端和所述第六贴片电容的第一端连接至所述第三类型输出电路的第一输出端；所述第九电解电容的第二端和所述第六贴片电容的第二端连接至所述第三类型输出电路的第二输出端及第三输出端；其中，所述第九电解电容及所述第六贴片电容为滤波电容，用于降低对控制电路的干扰。The third type output circuit further includes a ninth electrolytic capacitor and a sixth chip capacitor: a ninth electrolytic capacitor, the first end of which is connected to the first end of the fourth chip resistor, and the second end thereof Connected to the second end of the fourth chip resistor; a sixth chip capacitor having a first end connected to the first end of the ninth electrolytic capacitor and a second end connected to the ninth electrolytic capacitor a second end; wherein the first end of the ninth electrolytic capacitor and the first end of the sixth chip capacitor are connected to a first output end of the third type output circuit; the ninth electrolytic capacitor The second end of the sixth chip capacitor and the second end of the sixth chip capacitor are connected to the second output end and the third output end of the third type output circuit; wherein the ninth electrolytic capacitor and the sixth sticker The chip capacitor is a filter capacitor used to reduce interference to the control circuit.
其中，所述整流滤波电路包括整流桥及第十电解电容；第十电解电容，其第一端连接至对应的变压器初级绕组的非同名端，而其第二端接地；其中，所述整流桥进一步包括：第七二极管，其阴极连接至所述第十电解电容与所述变压器初级绕组的非同名端之间的节点；第八二极管，其阴极连接至所述第七二极管的阳极，而其阳极连接至所述第十电解电容的第二端；第五二极管，其阴极连接至所述第十电解电容与所述第七二极管之间的节点；第六二极管，其阴极连接至所述第五二极管的阳极，而其阳极连接至所述第十电解电容与所述第八二极管之间的节点。其中，所述自馈电电路包括：第六贴片电阻，其第二端连接至自馈电绕组的同名端，而所述自馈电绕组的非同名端接地；第九二极管，其阳极连接至所述第六贴片电阻的第一端；第十一电解电容，其第一端连接至所述第九二极管的阴极，而其第二端接地。Wherein, the rectifying and filtering circuit comprises a rectifier bridge and a tenth electrolytic capacitor; the tenth electrolytic capacitor has a first end connected to a non-identical end of the corresponding transformer primary winding, and a second end thereof grounded; wherein the rectifier bridge The method further includes: a seventh diode having a cathode connected to a node between the tenth electrolytic capacitor and a non-identical end of the transformer primary winding; and an eighth diode having a cathode connected to the seventh diode An anode of the tube, the anode of which is connected to the second end of the tenth electrolytic capacitor; the fifth diode having a cathode connected to the node between the tenth electrolytic capacitor and the seventh diode; A diode having a cathode connected to the anode of the fifth diode and an anode connected to a node between the tenth electrolytic capacitor and the eighth diode. Wherein, the self-feeding circuit comprises: a sixth chip resistor, the second end of which is connected to the same name end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded; the ninth diode The anode is connected to the first end of the sixth chip resistor; the eleventh electrolytic capacitor has a first end connected to the cathode of the ninth diode and a second end grounded.
其中，所述单片功率集成电路包括电源管理芯片及***电路；所述电源管理芯片的第七端连接至所述自馈电电路的所述第十一电解电容的第一端；所述电源管理芯片的第五端连接至所述变压器初级绕组的同名端；所述***电路进一步包括：第七贴片电容，其第一端连接至所述电源管理芯片的第一端，而其第二端连接至所述电源管理芯片的第八端；第七贴片电阻，其第一端连接至所述电源管理芯片的第三端，而其第二端连接至所述第七贴片电容的第二端；第八贴片电阻，其第一端连接至所述电源管理芯片的第三端与所述第七贴片电阻之间的节点，其第二端连接至所述第七贴片电阻的第二端；其中，连接所述第八贴片电阻的第二端、所述第七贴片电阻的第二端、所述第七贴片电容的第二端与所述电源管理芯片的第八端的节点接地。The single-chip power integrated circuit includes a power management chip and a peripheral circuit; a seventh end of the power management chip is connected to a first end of the eleventh electrolytic capacitor of the self-feed circuit; The fifth end of the management chip is connected to the same name end of the primary winding of the transformer; the peripheral circuit further includes: a seventh chip capacitor, the first end of which is connected to the first end of the power management chip, and the second end thereof The end is connected to the eighth end of the power management chip; the seventh chip resistor has a first end connected to the third end of the power management chip and a second end connected to the seventh chip capacitor a second end; an eighth chip resistor having a first end connected to a node between the third end of the power management chip and the seventh chip resistor, and a second end connected to the seventh patch a second end of the resistor; wherein the second end of the eighth chip resistor is connected, the second end of the seventh chip resistor, the second end of the seventh chip capacitor, and the power management chip The eighth end of the node is grounded.
其中，所述伺服驱动器开关电源进一步包括输入电源欠压告警电路，所述输入电源欠压告警电路包括：第九贴片电阻，其第一端连接至所述整流滤波电 路的所述第十电解电容的第一端；第十贴片电阻，其第一端连接至所述第九贴片电阻的第二端；第十一贴片电阻，其第一端连接至所述第十贴片电阻的第二端；第十二贴片电阻，其第一端连接至所述第十一贴片电阻的第二端；第十三贴片电阻，其第一端连接至所述第十二贴片电阻的第二端；第十四贴片电阻，其第一端连接至所述第十三贴片电阻的第二端；第一稳压二极管，其阴极连接至所述第十四贴片电阻的第二端；第二稳压二极管，其阴极连接至所述第一稳压二极管的阳极；第三稳压二极管，其阴极连接至所述第二稳压二极管的阳极；光电耦合器发光管，其阳极连接至所述第三稳压二极管的阳极，而其阴极接地；第十五贴片电阻，其第二端接地；第八贴片电容，其第一端连接至所述第十五贴片电阻与所述光敏三极管之间的节点，而其第二端连接至所述第十五贴片电阻的第二端，且所述第八贴片电容与所述第十五贴片电阻之间的节点接地；光敏三极管，其第二端连接至所述第十五贴片电阻的第一端，而其第一端连接至外部电路；其中，当所述输入整流滤波电路输入电源低于预设电压值稳压管导通，所述光电耦合器发光管发光，所述光敏三极管接收光源达到饱和，发出输入电源欠压的告警信号。The servo driver switching power supply further includes an input power supply undervoltage warning circuit, and the input power supply undervoltage warning circuit includes: a ninth chip resistor, the first end of which is connected to the rectification and filtering power a first end of the tenth electrolytic capacitor of the circuit; a tenth chip resistor having a first end connected to the second end of the ninth chip resistor; and an eleventh chip resistor having a first end connected to a second end of the tenth chip resistor; a twelfth chip resistor having a first end connected to the second end of the eleventh chip resistor; and a thirteenth chip resistor having a first end connected a second end of the twelfth chip resistor; a fourteenth chip resistor having a first end connected to the second end of the thirteenth chip resistor; and a first Zener diode connected to the cathode a second end of the fourteenth chip resistor; a second Zener diode having a cathode connected to the anode of the first Zener diode; and a third Zener diode having a cathode connected to the second Zener diode An anode; a photocoupler arc tube having an anode connected to the anode of the third Zener diode and a cathode grounded; a fifteenth chip resistor having a second end grounded; an eighth chip capacitor, the first The end is connected to the node between the fifteenth chip resistor and the phototransistor, and the second end is connected a second end of the fifteenth chip resistor, and a node between the eighth chip capacitor and the fifteenth chip resistor is grounded; a phototransistor having a second end connected to the fifteenth a first end of the chip resistor, and a first end thereof is connected to the external circuit; wherein, when the input rectification filter circuit input power is lower than the preset voltage value, the voltage regulator tube is turned on, and the photocoupler LED emits light, The photo transistor receives the light source to be saturated, and sends an alarm signal of the input power supply undervoltage.
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种伺服驱动器，其中，所述伺服驱动器包括开关电源。In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a servo driver, wherein the servo driver includes a switching power supply.
其中，所述开关电源包括：输入整流滤波电路、单片功率集成电路、变压器初级绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集；所述二次侧输出电路集包括至少一个二次侧输出电路，所述二次侧绕组集包括至少一个二次侧绕组，所述至少一个二次侧绕组与所述变压器初级绕组和所述自馈电绕组耦合，且所述至少一个二次侧输出电路与所述至少一个二次侧绕组分别对应连接；所述输入整流滤波电路与所述变压器初级绕组的一端耦接，所述变压器初级绕组的另一端与单片功率集成电路耦接；所述自馈电电路与所述自馈电绕组及所述单片功率集成电路耦接。The switching power supply includes: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, a self-feeding circuit, a self-feeding winding, a secondary side winding set, and a secondary side output circuit set; The side output circuit set includes at least one secondary side output circuit including at least one secondary side winding, the at least one secondary side winding coupled to the transformer primary winding and the self-feeding winding And the at least one secondary side output circuit is respectively connected to the at least one secondary side winding; the input rectification filter circuit is coupled to one end of the transformer primary winding, and the other end of the transformer primary winding is The monolithic power integrated circuit is coupled to the self-feeding circuit and the self-feeding winding and the monolithic power integrated circuit.
其中，所述二次侧输出电路集包括至少一个第一类型输出电路；其中，每个所述第一类型输出电路分别包括：第一二极管，其阳极连接至对应的二次侧绕组的同名端；第一电解电容，其第一端连接至所述第一二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；第一三端稳压器，其第一端连接至所述第一二极管与所述第一电解电容之间的节点，其第二端连接至所述第一电解电容的第二端；第二电解电容，其第一端连接至所述第一三端稳压器 的第三端，而其第二端连接至所述第一三端稳压器的第二端；第一贴片电容，其第一端连接至所述第二电解电容的第一端，而其第二端连接至所述第二电解电容的第二端；第一贴片电阻，其第一端连接至所述第一贴片电容的第一端，而其第二端连接至所述第一贴片电容的第二端；其中，连接所述第一三端稳压器的第三端、所述第二电解电容的第一端、所述第一贴片电容的第一端和所述第一贴片电阻的第一端的节点作为所述第一类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第一电解电容的第二端、所述第一三端稳压器的第二端、所述第二电解电容的第二端、所述第一贴片电容的第二端、所述第一贴片电阻的第二端的节点作为所述第一类型输出电路的第二输出端。Wherein the secondary side output circuit set includes at least one first type output circuit; wherein each of the first type output circuits comprises: a first diode having an anode connected to the corresponding secondary side winding a first electrolytic capacitor having a first end connected to a cathode of the first diode and a second end connected to a corresponding non-identical end of the secondary winding; the first three-terminal voltage regulator a first end connected to a node between the first diode and the first electrolytic capacitor, a second end connected to a second end of the first electrolytic capacitor, and a second electrolytic capacitor a first end connected to the first three-terminal regulator a third end connected to the second end of the first three-terminal regulator; a first chip capacitor having a first end connected to the first end of the second electrolytic capacitor, and a second end thereof is connected to the second end of the second electrolytic capacitor; a first chip resistor having a first end connected to the first end of the first chip capacitor and a second end connected to the a second end of the first chip capacitor; wherein a third end of the first three-terminal regulator, a first end of the second electrolytic capacitor, a first end of the first chip capacitor, and a node of the first end of the first chip resistor serves as a first output end of the first type of output circuit; and connects a corresponding non-identical end of the secondary side winding, the first electrolytic capacitor a second end, a second end of the first three-terminal regulator, a second end of the second electrolytic capacitor, a second end of the first chip capacitor, and a second of the first chip resistor The node of the end serves as the second output of the first type of output circuit.
其中，所述二次侧输出电路集包括至少一个第二类型输出电路；其中，每个所述第二类型输出电路分别包括：第二贴片电阻，其第一端连接至对应的二次侧绕组的同名端；第二贴片电容，其第一端连接至所述第二贴片电阻的第二端；第二二极管，其阳极连接至对应的所述二次侧绕组的同名端与所述第二贴片电阻之间的节点，其阴极连接至所述第二贴片电容的第二端；第三电解电容，其第一端连接至所述第二二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；电感，其第一端连接至所述第二二极管的阴极与所述第三电解电容之间的节点；第四电解电容，其第一端连接至所述电感的第二端，其第二端连接至所述第三电解电容的第二端；第三贴片电容，其第一端连接至所述第四电解电容的第一端，而其第二端连接至所述第四电解电容的第二端；第三贴片电阻，其第一端连接至所述第三贴片电容的第一端，而其第二端连接至所述第三贴片电容的第二端；其中，连接所述电感的第二端、所述第四电解电容的第一端、所述第三贴片电容的第一端和所述第三贴片电阻的第一端的节点作为所述第二类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第三电解电容的第二端、所述第四电解电容的第二端、所述第三贴片电容的第二端和所述第三贴片电阻的第二端的节点作为所述第二类型输出电路的第二输出端，且第二输出端接地。Wherein the secondary side output circuit set includes at least one second type output circuit; wherein each of the second type output circuits comprises: a second chip resistor, the first end of which is connected to the corresponding secondary side a second chip capacitor having a first end connected to the second end of the second chip resistor; and a second diode having an anode connected to the corresponding end of the corresponding secondary winding a node between the second chip resistor and a cathode connected to the second end of the second chip capacitor; a third electrolytic capacitor having a first end connected to the cathode of the second diode The second end is connected to the corresponding non-identical end of the secondary winding; the first end of the inductor is connected to the node between the cathode of the second diode and the third electrolytic capacitor; a fourth electrolytic capacitor having a first end connected to the second end of the inductor, a second end connected to the second end of the third electrolytic capacitor, and a third chip capacitor having a first end connected to the first end a first end of the fourth electrolytic capacitor, and a second end of the fourth electrolytic capacitor connected to the fourth electrolytic capacitor a second chip resistor having a first end connected to the first end of the third chip capacitor and a second end connected to the second end of the third chip capacitor; wherein a second end of the inductor, a first end of the fourth electrolytic capacitor, a first end of the third chip capacitor, and a node of the first end of the third chip resistor as the second type of output a first output end of the circuit; and a non-identical end of the corresponding secondary winding, a second end of the third electrolytic capacitor, a second end of the fourth electrolytic capacitor, and a third patch A node of the second end of the capacitor and the second end of the third chip resistor serves as a second output of the second type of output circuit, and the second output is grounded.
其中，所述二次侧输出电路集包括至少一个第三类型输出电路；其中，每个所述第三类型输出电路分别包括：第三二极管，其阳极连接至对应的第一二次侧绕组的同名端；第五电解电容，其第一端连接至所述第三二极管的阴极，而其第二端连接至对应的所述第一二次侧绕组的非同名端；第二三端稳压器， 其第一端连接至所述第三二极管与所述第五电解电容之间的节点，其第二端连接至所述第五电解电容的第二端；第七电解电容，其第一端连接至所述第二三端稳压器的第三端，而其第二端连接至所述第二三端稳压器的第二端；第四贴片电容，其第一端连接至所述第七电解电容的第一端，而其第二端连接至所述第七电解电容的第二端；第四贴片电阻，其第一端连接至所述第四贴片电容的第一端，而其第二端连接至所述第四贴片电容的第二端；第四二极管，其阴极连接至对应的第二二次侧绕组的非同名端；第六电解电容，其第一端连接至对应的所述第二二次侧绕组的同名端，而其第二端连接至所述第四二极管的阳极，第三三端稳压器，其第一端连接至所述第六电解电容的第一端，其第二端连接至所述第四二极管与所述第六电解电容之间的节点；第八电解电容，其第一端连接至所述第三三端稳压器的第一端，而其第二端连接至所述第三三端稳压器的第三端；第五贴片电容，其第一端连接至所述第八电解电容的第一端，而其第二端连接至所述第八电解电容的第二端；第五贴片电阻，其第一端连接至所述第五贴片电容的第一端，而其第二端连接至所述第五贴片电容的第二端；其中，连接所述第二三端稳压器的第三端、所述第七电解电容的第一端、所述第四贴片电容的第一端和所述第四贴片电阻的第一端的节点作为所述第三类型输出电路的第一输出端；而连接对应的所述第一二次侧绕组的非同名端、所述第二二次侧绕组的同名端、所述第五电解电容的第二端、所述第六电解电容的第一端、所述第二三端稳压器的第二端、所述第三三端稳压器的第一端、所述第七电解电容的第二端、所述第八电解电容的第一端、所述第四贴片电容的第二端、所述第五贴片电容的第一端、所述第四贴片电阻的第二端和所述第五贴片电阻的第一端的节点作为所述第三类型输出电路的第二输出端；连接所述第三三端稳压器的第三端、所述第八电解电容的第二端、所述第五贴片电容的第二端和所述第五贴片电阻的第二端的节点作为所述第三类型输出电路的第三输出端；其中，所述第一二次侧绕组与所述第二二次侧绕组采用自由飞线，直接将电线引出焊接在印刷电路板上。Wherein the secondary side output circuit set includes at least one third type output circuit; wherein each of the third type output circuits comprises: a third diode having an anode connected to the corresponding first secondary side a fifth electrolytic capacitor having a first end connected to a cathode of the third diode and a second end connected to a corresponding non-identical end of the first secondary winding; Three-terminal regulator, a first end connected to the node between the third diode and the fifth electrolytic capacitor, a second end connected to the second end of the fifth electrolytic capacitor; a seventh electrolytic capacitor, the first An end connected to the third end of the second three-terminal regulator, and a second end connected to the second end of the second three-terminal regulator; a fourth chip capacitor, the first end of which is connected to a first end of the seventh electrolytic capacitor, and a second end connected to the second end of the seventh electrolytic capacitor; a fourth chip resistor having a first end connected to the fourth chip capacitor One end, the second end of which is connected to the second end of the fourth chip capacitor; the fourth diode whose cathode is connected to the non-identical end of the corresponding second secondary winding; the sixth electrolytic capacitor, a first end connected to the corresponding end of the second secondary winding, and a second end connected to the anode of the fourth diode, a third three-terminal regulator, the first end of which is connected To a first end of the sixth electrolytic capacitor, a second end of which is connected to a node between the fourth diode and the sixth electrolytic capacitor; a capacitor having a first end connected to the first end of the third three-terminal regulator and a second end connected to the third end of the third three-terminal regulator; a fifth chip capacitor, a first end connected to the first end of the eighth electrolytic capacitor and a second end connected to the second end of the eighth electrolytic capacitor; a fifth chip resistor having a first end connected to the fifth end a first end of the chip capacitor, and a second end connected to the second end of the fifth chip capacitor; wherein the third end of the second three-terminal regulator is connected to the seventh electrolytic capacitor a first end, a first end of the fourth chip capacitor, and a node of the first end of the fourth chip resistor as a first output of the third type of output circuit; a non-identical end of the first secondary winding, a same end of the second secondary winding, a second end of the fifth electrolytic capacitor, a first end of the sixth electrolytic capacitor, and a second third a second end of the terminal regulator, a first end of the third three-terminal regulator, a second end of the seventh electrolytic capacitor, and an eighth electrolytic capacitor One end, a second end of the fourth chip capacitor, a first end of the fifth chip capacitor, a second end of the fourth chip resistor, and a first end of the fifth chip resistor a node as a second output end of the third type output circuit; a third end connected to the third three-terminal regulator, a second end of the eighth electrolytic capacitor, and a fifth chip capacitor a node of the second end and the second end of the fifth chip resistor as a third output of the third type of output circuit; wherein the first secondary winding and the second secondary winding are free Fly the wire and directly lead the wire out to the printed circuit board.
其中，所述第三类型输出电路进一步包括第九电解电容及第六贴片电容：第九电解电容，其第一端连接至所述第四贴片电阻的第一端，而其第二端连接至所述第四贴片电阻的第二端；第六贴片电容，其第一端连接至所述第九电解电容的第一端，而其第二端连接至所述第九电解电容的第二端；其中，所述第九电解电容的第一端和所述第六贴片电容的第一端连接至所述第三类型输出电 路的第一输出端；所述第九电解电容的第二端和所述第六贴片电容的第二端连接至所述第三类型输出电路的第二输出端及第三输出端；其中，所述第九电解电容及所述第六贴片电容为滤波电容，用于降低对控制电路的干扰。The third type output circuit further includes a ninth electrolytic capacitor and a sixth chip capacitor: a ninth electrolytic capacitor, the first end of which is connected to the first end of the fourth chip resistor, and the second end thereof Connected to the second end of the fourth chip resistor; a sixth chip capacitor having a first end connected to the first end of the ninth electrolytic capacitor and a second end connected to the ninth electrolytic capacitor a second end; wherein the first end of the ninth electrolytic capacitor and the first end of the sixth chip capacitor are connected to the third type of output power a first output end of the circuit; a second end of the ninth electrolytic capacitor and a second end of the sixth chip capacitor are connected to the second output end and the third output end of the third type output circuit; The ninth electrolytic capacitor and the sixth chip capacitor are filter capacitors for reducing interference to the control circuit.
其中，所述整流滤波电路包括整流桥及第十电解电容；第十电解电容，其第一端连接至对应的变压器初级绕组的非同名端，而其第二端接地；其中，所述整流桥进一步包括：第七二极管，其阴极连接至所述第十电解电容与所述变压器初级绕组的非同名端之间的节点；第八二极管，其阴极连接至所述第七二极管的阳极，而其阳极连接至所述第十电解电容的第二端；第五二极管，其阴极连接至所述第十电解电容与所述第七二极管之间的节点；第六二极管，其阴极连接至所述第五二极管的阳极，而其阳极连接至所述第十电解电容与所述第八二极管之间的节点。Wherein, the rectifying and filtering circuit comprises a rectifier bridge and a tenth electrolytic capacitor; the tenth electrolytic capacitor has a first end connected to a non-identical end of the corresponding transformer primary winding, and a second end thereof grounded; wherein the rectifier bridge The method further includes: a seventh diode having a cathode connected to a node between the tenth electrolytic capacitor and a non-identical end of the transformer primary winding; and an eighth diode having a cathode connected to the seventh diode An anode of the tube, the anode of which is connected to the second end of the tenth electrolytic capacitor; the fifth diode having a cathode connected to the node between the tenth electrolytic capacitor and the seventh diode; A diode having a cathode connected to the anode of the fifth diode and an anode connected to a node between the tenth electrolytic capacitor and the eighth diode.
其中，所述自馈电电路包括：第六贴片电阻，其第二端连接至自馈电绕组的同名端，而所述自馈电绕组的非同名端接地；第九二极管，其阳极连接至所述第六贴片电阻的第一端；第十一电解电容，其第一端连接至所述第九二极管的阴极，而其第二端接地。Wherein, the self-feeding circuit comprises: a sixth chip resistor, the second end of which is connected to the same name end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded; the ninth diode The anode is connected to the first end of the sixth chip resistor; the eleventh electrolytic capacitor has a first end connected to the cathode of the ninth diode and a second end grounded.
其中，所述单片功率集成电路包括电源管理芯片及***电路；所述电源管理芯片的第七端连接至所述自馈电电路的所述第十一电解电容的第一端；所述电源管理芯片的第五端连接至所述变压器初级绕组的同名端；所述***电路进一步包括：第七贴片电容，其第一端连接至所述电源管理芯片的第一端，而其第二端连接至所述电源管理芯片的第八端；第七贴片电阻，其第一端连接至所述电源管理芯片的第三端，而其第二端连接至所述第七贴片电容的第二端；第八贴片电阻，其第一端连接至所述电源管理芯片的第三端与所述第七贴片电阻之间的节点，其第二端连接至所述第七贴片电阻的第二端；其中，连接所述第八贴片电阻的第二端、所述第七贴片电阻的第二端、所述第七贴片电容的第二端与所述电源管理芯片的第八端的节点接地。The single-chip power integrated circuit includes a power management chip and a peripheral circuit; a seventh end of the power management chip is connected to a first end of the eleventh electrolytic capacitor of the self-feed circuit; The fifth end of the management chip is connected to the same name end of the primary winding of the transformer; the peripheral circuit further includes: a seventh chip capacitor, the first end of which is connected to the first end of the power management chip, and the second end thereof The end is connected to the eighth end of the power management chip; the seventh chip resistor has a first end connected to the third end of the power management chip and a second end connected to the seventh chip capacitor a second end; an eighth chip resistor having a first end connected to a node between the third end of the power management chip and the seventh chip resistor, and a second end connected to the seventh patch a second end of the resistor; wherein the second end of the eighth chip resistor is connected, the second end of the seventh chip resistor, the second end of the seventh chip capacitor, and the power management chip The eighth end of the node is grounded.
其中，所述开关电源进一步包括输入电源欠压告警电路，所述输入电源欠压告警电路包括：第九贴片电阻，其第一端连接至所述整流滤波电路的所述第十电解电容的第一端；第十贴片电阻，其第一端连接至所述第九贴片电阻的第二端；第十一贴片电阻，其第一端连接至所述第十贴片电阻的第二端；第十二贴片电阻，其第一端连接至所述第十一贴片电阻的第二端；第十三贴片电阻，其第一端连接至所述第十二贴片电阻的第二端；第十四贴片电阻，其第一端连 接至所述第十三贴片电阻的第二端；第一稳压二极管，其阴极连接至所述第十四贴片电阻的第二端；第二稳压二极管，其阴极连接至所述第一稳压二极管的阳极；第三稳压二极管，其阴极连接至所述第二稳压二极管的阳极；光电耦合器发光管，其阳极连接至所述第三稳压二极管的阳极，而其阴极接地；第十五贴片电阻，其第二端接地；第八贴片电容，其第一端连接至所述第十五贴片电阻的第一端，而其第二端连接至所述第十五贴片电阻的第二端，且所述第八贴片电容与所述第十五贴片电阻之间的节点接地；光敏三极管，其第二端连接至所述第十五贴片电阻的第一端，而其第一端连接至外部电路；其中，当所述输入整流滤波电路输入电源低于预设电压值稳压管导通，所述光电耦合器发光管发光，所述光敏三极管接收光源达到饱和，发出输入电源欠压的告警信号。The switching power supply further includes an input power supply undervoltage warning circuit, and the input power supply undervoltage warning circuit includes: a ninth chip resistor, the first end of which is connected to the tenth electrolytic capacitor of the rectifying and filtering circuit a first end; a tenth chip resistor having a first end connected to the second end of the ninth chip resistor; and an eleventh chip resistor having a first end connected to the tenth chip resistor a second end; a twelfth chip resistor having a first end connected to the second end of the eleventh chip resistor; a thirteenth chip resistor having a first end connected to the twelfth chip resistor The second end; the fourteenth chip resistor, the first end of which Connecting to the second end of the thirteenth chip resistor; a first Zener diode having a cathode connected to the second end of the fourteenth chip resistor; and a second Zener diode having a cathode connected to the An anode of the first Zener diode; a third Zener diode having a cathode connected to the anode of the second Zener diode; a photocoupler arc tube having an anode connected to the anode of the third Zener diode, and a cathode ground; a fifteenth chip resistor having a second end grounded; an eighth chip capacitor having a first end connected to the first end of the fifteenth chip resistor and a second end connected to the a second end of the fifteenth chip resistor, and the node between the eighth chip capacitor and the fifteenth chip resistor is grounded; the phototransistor has a second end connected to the fifteenth patch a first end of the resistor, and a first end thereof is connected to the external circuit; wherein, when the input rectification filter circuit input power is lower than the preset voltage value, the Zener tube is turned on, and the photocoupler LED emits light, Phototransistor receiving light source is saturated, and the input power supply is under voltage Alarm signal.
本发明的有益效果是：通过输入整流滤波电路、单片功率集成电路、变压器初级绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集组成伺服驱动器开关电源，为伺服驱动器提供较优调整率的多路不同电压等级直流电源，并减少电磁的干扰。The invention has the beneficial effects that the servo drive switching power supply is composed of the input rectification and filtering circuit, the monolithic power integrated circuit, the transformer primary winding, the self-feeding circuit, the self-feeding winding, the secondary side winding set and the secondary side output circuit set. It provides multi-channel DC power supply with different adjustment rate for servo drive and reduces electromagnetic interference.
【附图说明】[Description of the Drawings]
为了更清楚地说明本发明实施方式中的技术方案，下面将对实施方式描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work. among them:
图1是本发明开关电源的第一实施例的结构示意图；1 is a schematic structural view of a first embodiment of a switching power supply of the present invention;
图2是本发明二次侧输出电路集的一实施例的电路示意图；2 is a circuit diagram of an embodiment of a secondary side output circuit set of the present invention;
图3是本发明开关电源的第二实施例的结构示意图；3 is a schematic structural view of a second embodiment of a switching power supply of the present invention;
图4是本发明开关电源的详细电路示意图；4 is a detailed circuit diagram of a switching power supply of the present invention;
图5是本发明的伺服驱动器结构示意图。Fig. 5 is a schematic structural view of a servo driver of the present invention.
【具体实施方式】【Detailed ways】
下面结合附图和实施方式对本发明进行详细说明。需要注意的是，以下描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。 The invention will now be described in detail in conjunction with the drawings and embodiments. It is to be noted that the embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.
图1是本发明开关电源的第一实施例的结构示意图，如图所示，伺服驱动器开关电源包括：输入整流滤波电路11、单片功率集成电路12、变压器初级绕组N1、自馈电电路13、自馈电绕组N7、二次侧绕组集15及二次侧输出电路集14。1 is a schematic structural view of a first embodiment of a switching power supply according to the present invention. As shown, the servo driver switching power supply includes an input rectification and filtering circuit 11, a monolithic power integrated circuit 12, a transformer primary winding N1, and a self-feeding circuit 13. Self-feed winding N7, secondary winding set 15 and secondary output circuit set 14.
本实施例中，二次侧输出电路集14包括至少一个二次侧输出电路，二次侧绕组集15包括至少一个二次侧绕组N2-N6，至少一个二次侧绕组与变压器初级绕组N1和自馈电绕组N7耦合，且至少一个二次侧输出电路与至少一个二次侧绕组N2-N6分别对应连接。输入整流滤波电路11与变压器初级绕组N1的一端耦接，变压器初级绕组N1的另一端与单片功率集成电路12耦接。自馈电电路13与自馈电绕组N7及单片功率集成电路12耦接。通过上述电路组合，为伺服驱动器提供较优调整率的多路不同电压等级直流电源，并减少电磁的干扰。In this embodiment, the secondary side output circuit set 14 includes at least one secondary side output circuit, and the secondary side winding set 15 includes at least one secondary side winding N2-N6, at least one secondary side winding and the transformer primary winding N1 and The self-feed winding N7 is coupled, and at least one secondary side output circuit is respectively connected to the at least one secondary side winding N2-N6. The input rectification filter circuit 11 is coupled to one end of the transformer primary winding N1, and the other end of the transformer primary winding N1 is coupled to the monolithic power integrated circuit 12. The self-feed circuit 13 is coupled to the self-feed winding N7 and the monolithic power integrated circuit 12. Through the combination of the above circuits, a plurality of different voltage level DC power sources with better adjustment rates are provided for the servo driver, and electromagnetic interference is reduced.
参考图2，图2是本发明二次侧输出电路集的一实施例的电路示意图。为了满足给多路电路提供不同电压等级的直流电源，本实施例提供了三种二次侧输出电路，如图所示，二次侧输出电路集14包括至少一个第一类型输出电路141、第二类型输出电路142或第三类型输出电路143。Referring to FIG. 2, FIG. 2 is a circuit diagram of an embodiment of a secondary side output circuit set of the present invention. In order to satisfy the DC power supply of different voltage levels to the multiplex circuit, the present embodiment provides three secondary side output circuits. As shown, the secondary side output circuit set 14 includes at least one first type output circuit 141, Two types of output circuits 142 or third type output circuits 143.
第一类型输出电路141包括：第一二极管D1、第一电解电容C1、第一三端稳压器U1、第二电解电容C2、第一贴片电容MC1及第一贴片电阻R1。第一二极管D1，其阳极连接至对应的二次侧绕组N1的同名端；第一电解电容C1，其第一端连接至第一二极管D1的阴极，而其第二端连接至对应的二次侧绕组N1的非同名端；第一三端稳压器U1，其第一端连接至第一二极管D1与第一电解电容C1之间的节点，其第二端连接至第一电解电容C1的第二端；第二电解电容C2，其第一端连接至第一三端稳压器U1的第三端，而其第二端连接至第一三端稳压器U1的第二端；第一贴片电容MC1，其第一端连接至第二电解电容C2的第一端，而其第二端连接至第二电解电容C2的第二端；第一贴片电阻R1，其第一端连接至第一贴片电容MC1的第一端，而其第二端连接至第一贴片电容MC1的第二端。其中，连接第一三端稳压器U1的第三端、第二电解电容C2的第一端、第一贴片电容MC1的第一端和第一贴片电阻R1的第一端的节点作为第一类型输出电路141的第一输出端；而连接对应的二次侧绕组N1的非同名端、第一电解电容C1的第二端、第一三端稳压器U1的第二端、第二电解电容C2的第二端、第一贴片电容MC1的第二端、第一贴片电阻R1的第二端的节点作为第一类型输出电路141的第二输出端。根据不同元件的参数设置，第一输出端与第二输出端之间的 电压差可以为任意值。例如，本实施例中，当C1＝220uF/35V，C2＝100uF/35V，MC1＝104，R1＝3K时，该电路可以提供15V的直流电源，可以为IPM逆变器等电路提供+15V电源；当C1＝10uF/50V，C2＝10uF/50V，MC1＝104，R1＝1K时，该电路可以提供5V的直流电源，可以为FPGA控制电路等电路提供+5V电源。同时，本实施例中使用了三端稳压器，提高了电路交叉调整率和负载调整率。The first type of output circuit 141 includes a first diode D1, a first electrolytic capacitor C1, a first three-terminal regulator U1, a second electrolytic capacitor C2, a first chip capacitor MC1, and a first chip resistor R1. a first diode D1 having an anode connected to a terminal of the same name of the corresponding secondary winding N1; a first electrolytic capacitor C1 having a first end connected to the cathode of the first diode D1 and a second end connected to the second end Corresponding non-identical end of the secondary winding N1; the first three-terminal regulator U1 has a first end connected to a node between the first diode D1 and the first electrolytic capacitor C1, and a second end connected to the second end a second end of the first electrolytic capacitor C1; a second end of the second electrolytic capacitor C2, the first end of which is connected to the third end of the first three-terminal regulator U1, and the second end of which is connected to the first three-terminal regulator U1 The first chip capacitor MC1 has a first end connected to the first end of the second electrolytic capacitor C2 and a second end connected to the second end of the second electrolytic capacitor C2; the first chip resistor R1 has a first end connected to the first end of the first chip capacitor MC1 and a second end connected to the second end of the first chip capacitor MC1. The third end of the first three-terminal regulator U1, the first end of the second electrolytic capacitor C2, the first end of the first chip capacitor MC1, and the node of the first end of the first chip resistor R1 are connected as a first output end of the first type of output circuit 141; and a non-identical end of the corresponding secondary side winding N1, a second end of the first electrolytic capacitor C1, a second end of the first three-terminal regulator U1, and a second end The second end of the second electrolytic capacitor C2, the second end of the first chip capacitor MC1, and the second end of the first chip resistor R1 serve as a second output terminal of the first type output circuit 141. Depending on the parameter settings of the different components, between the first output and the second output The voltage difference can be any value. For example, in this embodiment, when C1=220uF/35V, C2=100uF/35V, MC1=104, R1=3K, the circuit can provide 15V DC power supply, and can provide +15V power for circuits such as IPM inverters. When C1=10uF/50V, C2=10uF/50V, MC1=104, R1=1K, the circuit can provide 5V DC power supply, which can provide +5V power for FPGA control circuit and other circuits. At the same time, a three-terminal regulator is used in this embodiment, which improves the circuit cross adjustment rate and load adjustment rate.
第二类型输出电路142包括：第二贴片电阻R2、第二贴片电容MC2、第二二极管D2、第三电解电容C3、电感L、第四电解电容C4、第三贴片电容MC3及第三贴片电阻R3。第二贴片电阻R2，其第一端连接至对应的二次侧绕组N2的同名端；第二贴片电容MC2，其第一端连接至第二贴片电阻R2的第二端；第二二极管D2，其阳极连接至对应的二次侧绕组N2的同名端与第二贴片电阻R2之间的节点，其阴极连接至第二贴片电容MC2的第二端；第三电解电容C3，其第一端连接至第二二极管D2的阴极，而其第二端连接至对应的二次侧绕组N2的非同名端；电感L，其第一端连接至第二二极管D2的阴极与第三电解电容C3之间的节点；第四电解电容C4，其第一端连接至电感L的第二端，其第二端连接至第三电解电容C3的第二端；第三贴片电容MC3，其第一端连接至第四电解电容C4的第一端，而其第二端连接至第四电解电容C4的第二端；第三贴片电阻R3，其第一端连接至第三贴片电容MC3的第一端，而其第二端连接至第三贴片电容MC3的第二端。其中，连接电感L的第二端、第四电解电容C4的第一端、第三贴片电容MC3的第一端和第三贴片电阻R3的第一端的节点作为第二类型输出电路142的第一输出端；而连接对应的二次侧绕组N2的非同名端、第三电解电容C3的第二端、第四电解电容C4的第二端、第三贴片电容MC3的第二端和第三贴片电阻R3的第二端的节点作为第二类型输出电路142的第二输出端，且第二输出端接地。根据不同元件的参数设置，第一输出端可以提供不同的电压值。例如，在本实施例中，C3＝220uF/10V，R1＝1K，MC2＝102，MC3＝104，C4＝470uF/10V，第一输出端可以提供5V的直流电源。The second type output circuit 142 includes: a second chip resistor R2, a second chip capacitor MC2, a second diode D2, a third electrolytic capacitor C3, an inductor L, a fourth electrolytic capacitor C4, and a third chip capacitor MC3. And a third chip resistor R3. a second chip resistor R2, the first end of which is connected to the same end of the corresponding secondary winding N2; the second chip capacitor MC2 has a first end connected to the second end of the second chip resistor R2; The diode D2 has an anode connected to a node between the same-name end of the corresponding secondary winding N2 and the second chip resistor R2, and a cathode connected to the second end of the second chip capacitor MC2; a third electrolytic capacitor C3, the first end of which is connected to the cathode of the second diode D2, and the second end of which is connected to the non-identical end of the corresponding secondary side winding N2; the inductor L has a first end connected to the second diode a node between the cathode of D2 and the third electrolytic capacitor C3; a fourth electrolytic capacitor C4 having a first end connected to the second end of the inductor L and a second end connected to the second end of the third electrolytic capacitor C3; The three chip capacitor MC3 has a first end connected to the first end of the fourth electrolytic capacitor C4 and a second end connected to the second end of the fourth electrolytic capacitor C4; the third chip resistor R3, the first end thereof Connected to the first end of the third chip capacitor MC3, and the second end thereof is connected to the second end of the third chip capacitor MC3. The second end of the inductor L is connected, the first end of the fourth electrolytic capacitor C4, the first end of the third chip capacitor MC3, and the node of the first end of the third chip resistor R3 are used as the second type output circuit 142. a first output end; and a non-identical end of the corresponding secondary side winding N2, a second end of the third electrolytic capacitor C3, a second end of the fourth electrolytic capacitor C4, and a second end of the third chip capacitor MC3 And a node of the second end of the third chip resistor R3 serves as a second output terminal of the second type output circuit 142, and the second output terminal is grounded. The first output can provide different voltage values depending on the parameter settings of the different components. For example, in the present embodiment, C3=220uF/10V, R1=1K, MC2=102, MC3=104, C4=470uF/10V, and the first output terminal can provide a 5V DC power supply.
第三类型输出电路143包括：第三二极管D3、第五电解电容C5、第二三端稳压器U2、第七电解电容C7、第四贴片电容MC4、第四贴片电阻R4、第四二极管D4、第六电解电容C6、第三三端稳压器U3、第八电解电容C8、第五贴片电容MC5及第五贴片电阻R5。第三二极管D3，其阳极连接至对应的第一二次侧绕组N3的同名端；第五电解电容C5，其第一端连接至第三二极管D3的阴极，而其第二端连接至对应的第一二次侧绕组N3的非同名端；第二三端稳压器U2，其 第一端连接至第三二极管D3与第五电解电容C5之间的节点，其第二端连接至第五电解电容C5的第二端；第七电解电容C7，其第一端连接至第二三端稳压器U2的第三端，而其第二端连接至第二三端稳压器U2的第二端；第四贴片电容MC4，其第一端连接至第七电解电容C7的第一端，而其第二端连接至第七电解电容C7的第二端；第四贴片电阻R4，其第一端连接至第四贴片电容MC4的第一端，而其第二端连接至第四贴片电容MC4的第二端；第四二极管D4，其阴极连接至对应的第二二次侧绕组N4的非同名端；第六电解电容C6，其第一端连接至对应的第二二次侧绕组N4的同名端，而其第二端连接至第四二极管D4的阳极，第三三端稳压器U3，其第一端连接至第六电解电容C6的第一端，其第二端连接至第四二极管D4与第六电解电容C6之间的节点；第八电解电容C8，其第一端连接至第三三端稳压器U3的第一端，而其第二端连接至第三三端稳压器U3的第三端；第五贴片电容MC5，其第一端连接至第八电解电容C8的第一端，而其第二端连接至第八电解电容C8的第二端；第五贴片电阻R5，其第一端连接至第五贴片电容MC5的第一端，而其第二端连接至第五贴片电容MC5的第二端。其中，连接第二三端稳压器U2的第三端、第七电解电容C7的第一端、第四贴片电容MC4的第一端和第四贴片电阻R4的第一端的节点作为第三类型输出电路143的第一输出端；而连接对应的第一二次侧绕组N3的非同名端、第二二次侧绕组N4的同名端、第五电解电容C5的第二端、第六电解电容C6的第一端、第二三端稳压器U2的第二端、第三三端稳压器U3的第一端、第七电解电容C7的第二端、第八电解电容C8的第一端、第四贴片电容MC4的第二端、第五贴片电容MC5的第一端、第四贴片电阻R4的第二端和第五贴片电阻R5的第一端的节点作为第三类型输出电路143的第二输出端；连接第三三端稳压器U3的第三端、第八电解电容C8的第二端、第五贴片电容MC5的第二端和第五贴片电阻R5的第二端的节点作为第三类型输出电路143的第三输出端。根据不同元件的参数设置，该电路可以输出不同电压。例如，本实施例中，C5＝C6＝220uF/35V，C7＝C8＝100uF/35V，MC4＝MC5＝104，R4＝R5＝3K，该电路可以提供由+12V、-12V叠加而成的+24V的直流电源。该电路通过增加滤波电容降低对控制电路的干扰。其中，第一二次侧绕组N3与第二二次侧绕组N4采用自由飞线，漆包线引出端加上不同的颜色套管，直接将电线引出到PCB板上进行焊接，可以解决变压器骨架的PIN脚数量不够的问题。The third type output circuit 143 includes: a third diode D3, a fifth electrolytic capacitor C5, a second three-terminal regulator U2, a seventh electrolytic capacitor C7, a fourth chip capacitor MC4, a fourth chip resistor R4, The fourth diode D4, the sixth electrolytic capacitor C6, the third three-terminal regulator U3, the eighth electrolytic capacitor C8, the fifth chip capacitor MC5, and the fifth chip resistor R5. a third diode D3 having an anode connected to the same end of the corresponding first secondary winding N3; a fifth electrolytic capacitor C5 having a first end connected to the cathode of the third diode D3 and a second end Connected to a non-identical end of the corresponding first secondary winding N3; a second three-terminal regulator U2, The first end is connected to the node between the third diode D3 and the fifth electrolytic capacitor C5, the second end of which is connected to the second end of the fifth electrolytic capacitor C5; the seventh electrolytic capacitor C7 has the first end connected to a third end of the second three-terminal regulator U2, and a second end connected to the second end of the second three-terminal regulator U2; a fourth chip capacitor MC4, the first end of which is connected to the seventh electrolytic capacitor a first end of C7, the second end of which is connected to the second end of the seventh electrolytic capacitor C7; the fourth chip resistor R4 has a first end connected to the first end of the fourth chip capacitor MC4, and the first end thereof The second end is connected to the second end of the fourth chip capacitor MC4; the fourth diode D4 has a cathode connected to the non-identical end of the corresponding second secondary winding N4; and a sixth electrolytic capacitor C6, the first end thereof Connected to the corresponding end of the corresponding second secondary winding N4, and the second end thereof is connected to the anode of the fourth diode D4, and the third end regulator U3 has its first end connected to the sixth electrolytic capacitor a first end of C6, the second end of which is connected to a node between the fourth diode D4 and the sixth electrolytic capacitor C6; the eighth electrolytic capacitor C8 has a first end connected to the third end a first end of the terminal regulator U3, and a second end of which is connected to the third end of the third three-terminal regulator U3; a fifth chip capacitor MC5 whose first end is connected to the eighth electrolytic capacitor C8 One end, the second end of which is connected to the second end of the eighth electrolytic capacitor C8; the fifth chip resistor R5 has a first end connected to the first end of the fifth chip capacitor MC5 and a second end connected Up to the second end of the fifth chip capacitor MC5. Wherein, the third end of the second three-terminal regulator U2, the first end of the seventh electrolytic capacitor C7, the first end of the fourth chip capacitor MC4, and the node of the first end of the fourth chip resistor R4 are connected as a first output end of the third type output circuit 143; and a non-identical end of the corresponding first secondary winding N3, a second end of the second secondary winding N4, a second end of the fifth electrolytic capacitor C5, and a second end The first end of the six electrolytic capacitor C6, the second end of the second three-terminal regulator U2, the first end of the third three-terminal regulator U3, the second end of the seventh electrolytic capacitor C7, and the eighth electrolytic capacitor C8 The first end, the second end of the fourth chip capacitor MC4, the first end of the fifth chip capacitor MC5, the second end of the fourth chip resistor R4, and the node of the first end of the fifth chip resistor R5 a second output terminal of the third type output circuit 143; a third end connected to the third three-terminal regulator U3, a second end of the eighth electrolytic capacitor C8, and a second end and a fifth end of the fifth chip capacitor MC5 The node of the second end of the chip resistor R5 serves as the third output of the third type output circuit 143. The circuit can output different voltages depending on the parameter settings of the different components. For example, in this embodiment, C5=C6=220uF/35V, C7=C8=100uF/35V, MC4=MC5=104, R4=R5=3K, the circuit can provide + superposed by +12V, -12V 24V DC power supply. This circuit reduces the interference to the control circuit by adding a filter capacitor. Wherein, the first secondary side winding N3 and the second secondary side winding N4 adopt a free flying line, and the enameled wire lead end is provided with a different color sleeve, and the electric wire is directly led out to the PCB board for welding, and the PIN of the transformer skeleton can be solved. The problem of insufficient number of feet.
进一步的，第三类型输出电路143进一步包括第九电解电容C9及第六贴片 电容MC6。第九电解电容C9，其第一端连接至第四贴片电阻R4的第一端，而其第二端连接至第四贴片电阻R4的第二端；第六贴片电容MC6，其第一端连接至第九电解电容C9的第一端，而其第二端连接至第九电解电容C9的第二端。其中，第九电解电容C9的第一端和第六贴片电容MC6的第一端连接至第三类型输出电路143的第一输出端；第九电解电容C9的第二端和第六贴片电容MC6的第二端连接至第三类型输出电路143的第二输出端及第三输出端。本实施例中，在热端增加电解电容及贴片电容设计可以有效减少风扇转动对控制电路的正负电压造成电磁场干扰。Further, the third type output circuit 143 further includes a ninth electrolytic capacitor C9 and a sixth patch. Capacitor MC6. The ninth electrolytic capacitor C9 has a first end connected to the first end of the fourth chip resistor R4 and a second end connected to the second end of the fourth chip resistor R4; the sixth chip capacitor MC6, the first One end is connected to the first end of the ninth electrolytic capacitor C9, and the second end thereof is connected to the second end of the ninth electrolytic capacitor C9. The first end of the ninth electrolytic capacitor C9 and the first end of the sixth chip capacitor MC6 are connected to the first output end of the third type output circuit 143; the second end of the ninth electrolytic capacitor C9 and the sixth patch The second end of the capacitor MC6 is connected to the second output terminal and the third output terminal of the third type output circuit 143. In this embodiment, the addition of the electrolytic capacitor and the chip capacitor design at the hot end can effectively reduce the electromagnetic field interference caused by the fan rotation on the positive and negative voltages of the control circuit.
本实施例中提供了三种不同类型的输出电路，可以为伺服驱动器提供不同电压等级的直流电源。在实际设计中，可以单独使用其中任意一种类型的电路作为输出电路，也可以是其中任意两个或三个的组合。Three different types of output circuits are provided in this embodiment, and DC power supplies of different voltage levels can be provided for the servo driver. In the actual design, any one of the types of circuits may be used alone as an output circuit, or a combination of any two or three of them.
如图3所示，图3是本发明开关电源的第二实施例的结构示意图。开关电源进一步包括输入电源欠压告警电路16。输入电源欠压告警电路16与整流滤波电路11耦接，当接收的电源低于设计的电压值，发出输入电源欠压的告警信号。As shown in FIG. 3, FIG. 3 is a schematic structural view of a second embodiment of the switching power supply of the present invention. The switching power supply further includes an input power undervoltage warning circuit 16. The input power undervoltage warning circuit 16 is coupled to the rectification and filtering circuit 11. When the received power supply is lower than the designed voltage value, an alarm signal for input power supply undervoltage is issued.
图4是本发明开关电源的详细电路示意图，如图所示，开关电源包括：输入整流滤波电路、单片功率集成电路、变压器初级绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集、输入电源欠压告警电路。4 is a detailed circuit diagram of the switching power supply of the present invention. As shown in the figure, the switching power supply includes: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, a self-feeding circuit, a self-feeding winding, and a secondary winding. Set and secondary side output circuit set, input power supply under voltage alarm circuit.
其中，整流滤波电路包括，整流桥及第十电解电容C10。第十电解电容C10，其第一端连接至对应的变压器初级绕组的非同名端，而其第二端接。地进一步的，整流桥包括：第七二极管D7，其阴极连接至第十电解电容C10与变压器初级绕组的非同名端之间的节点；第八二极管D8，其阴极连接至第七二极管D7的阳极，而其阳极连接至第十电解电容C10的第二端；第五二极管D5，其阴极连接至第十电解电容C10与第七二极管D7之间的节点；第六二极管，其阴极连接至第五二极管D5的阳极，而其阳极连接至第十电解电容C10与第八二极管D8之间的节点。The rectifier filter circuit includes a rectifier bridge and a tenth electrolytic capacitor C10. The tenth electrolytic capacitor C10 has a first end connected to a non-identical end of the corresponding transformer primary winding and a second end connected. Further, the rectifier bridge includes: a seventh diode D7 whose cathode is connected to a node between the tenth electrolytic capacitor C10 and a non-identical end of the primary winding of the transformer; and an eighth diode D8 whose cathode is connected to the seventh The anode of the diode D7, the anode of which is connected to the second end of the tenth electrolytic capacitor C10; the fifth diode D5 whose cathode is connected to the node between the tenth electrolytic capacitor C10 and the seventh diode D7; The sixth diode has a cathode connected to the anode of the fifth diode D5 and an anode connected to a node between the tenth electrolytic capacitor C10 and the eighth diode D8.
自馈电电路包括，第六贴片电阻R6、第九二极管D9及第十一电解电容C11。第六贴片电阻R6，其第二端连接至自馈电绕组的同名端，而自馈电绕组的非同名端接地；第九二极管D9，其阳极连接至第六贴片电阻R6的第一端；第十一电解电容C11，其第一端连接至第九二极管D9的阴极，而其第二端接地。The self-feeding circuit includes a sixth chip resistor R6, a ninth diode D9, and an eleventh electrolytic capacitor C11. a sixth chip resistor R6, the second end of which is connected to the same name end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded; the ninth diode D9 has an anode connected to the sixth chip resistor R6 The first end; the eleventh electrolytic capacitor C11 has a first end connected to the cathode of the ninth diode D9 and a second end grounded.
单片功率集成电路，包括电源管理芯片及***电路。电源管理芯片的第七端连接至自馈电电路的第十一电解电容C11的第一端；电源管理芯片的第五端 连接至变压器初级绕组的同名端。进一步，***电路包括，第七贴片电容MC7，其第一端连接至电源管理芯片的第一端，而其第二端连接至电源管理芯片的第八端；第七贴片电阻R7，其第一端连接至电源管理芯片的第三端，而其第二端连接至第七贴片电容MC7的第二端；第八贴片电阻R8，其第一端连接至电源管理芯片的第三端与第七贴片电阻R7之间的节点，其第二端连接至第七贴片电阻R7的第二端；其中，连接第八贴片电阻R8的第二端、第七贴片电阻R7的第二端、第七贴片电容MC7的第二端与电源管理芯片的第八端的节点接地。本实施例中，电源管理芯片选用ICE3BR0665J，用于抖频降低电磁干扰，提高电路稳定性。A monolithic power integrated circuit, including a power management chip and peripheral circuits. The seventh end of the power management chip is connected to the first end of the eleventh electrolytic capacitor C11 of the self-feed circuit; the fifth end of the power management chip Connect to the same name end of the primary winding of the transformer. Further, the peripheral circuit includes a seventh chip capacitor MC7 having a first end connected to the first end of the power management chip and a second end connected to the eighth end of the power management chip; and a seventh chip resistor R7, The first end is connected to the third end of the power management chip, and the second end is connected to the second end of the seventh chip capacitor MC7; the eighth chip resistor R8 is connected to the third end of the power management chip a node between the terminal and the seventh chip resistor R7, the second end of which is connected to the second end of the seventh chip resistor R7; wherein, the second end of the eighth chip resistor R8 is connected, and the seventh chip resistor R7 The second end of the second end, the seventh chip capacitor MC7 is grounded to the node of the eighth end of the power management chip. In this embodiment, the power management chip selects ICE3BR0665J for frequency hopping to reduce electromagnetic interference and improve circuit stability.
输入电源欠压告警电路包括，第九贴片电阻R9，其第一端连接至整流滤波电路的第十电解电容C10的第一端；第十贴片电阻R10，其第一端连接至第九贴片电阻R9的第二端；第十一贴片电阻R11，其第一端连接至第十贴片电阻R10的第二端；第十二贴片电阻R12，其第一端连接至第十一贴片电阻R11的第二端；第十三贴片电阻R13，其第一端连接至第十二贴片电阻R12的第二端；第十四贴片电阻R14，其第一端连接至第十三贴片电阻R13的第二端；第一稳压二极管ZD1，其阴极连接至第十四贴片电阻R14的第二端；第二稳压二极管ZD2，其阴极连接至第一稳压二极管ZD1的阳极；第三稳压二极管ZD3，其阴极连接至第二稳压二极管ZD2的阳极；光电耦合器发光管PC1A，其阳极连接至第三稳压二极管ZD3的阳极，而其阴极接地；第十五贴片电阻R15，其第二端接地；第八贴片电容MC8，其第一端连接至第十五贴片电阻R15的第一端，而其第二端连接至第十五贴片电阻R15的第二端，且第八贴片电容MC8与第十五贴片电阻R15之间的节点接地；光敏三极管PC1B，其第二端连接至第十五贴片电阻R5的第一端，而其第一端连接至外部电路。本实施例中，当输入整流滤波电路输入电源低于预设电压值稳压管导通，光电耦合器发光管发光，光敏三极管接收光源达到饱和，发出输入电源欠压的告警信号。The input power undervoltage warning circuit includes a ninth chip resistor R9, the first end of which is connected to the first end of the tenth electrolytic capacitor C10 of the rectifying and filtering circuit, and the tenth chip resistor R10, the first end of which is connected to the ninth a second end of the chip resistor R9; an eleventh chip resistor R11, the first end of which is connected to the second end of the tenth chip resistor R10; and the twelfth chip resistor R12, the first end of which is connected to the tenth a second end of the chip resistor R11; a thirteenth chip resistor R13, the first end of which is connected to the second end of the twelfth chip resistor R12; the fourteenth chip resistor R14, the first end of which is connected to a second end of the thirteenth chip resistor R13; a first Zener diode ZD1 whose cathode is connected to a second end of the fourteenth chip resistor R14; and a second Zener diode ZD2 whose cathode is connected to the first voltage regulator The anode of the diode ZD1; the third Zener diode ZD3, the cathode of which is connected to the anode of the second Zener diode ZD2; the photocoupler LED tube PC1A whose anode is connected to the anode of the third Zener diode ZD3, and the cathode thereof is grounded; The fifteenth chip resistor R15, the second end of which is grounded; the eighth chip capacitor MC8, the first of which Connected to the first end of the fifteenth chip resistor R15, and the second end thereof is connected to the second end of the fifteenth chip resistor R15, and between the eighth chip capacitor MC8 and the fifteenth chip resistor R15 The node is grounded; the phototransistor PC1B has a second end connected to the first end of the fifteenth chip resistor R5 and a first end connected to the external circuit. In this embodiment, when the input rectification filter circuit input power is lower than the preset voltage value, the voltage regulator tube is turned on, the photocoupler illumination tube emits light, the phototransistor receiving light source reaches saturation, and an alarm signal of the input power supply undervoltage is issued.
二次侧绕组集及二次侧输出电路集在上述实施例中有详细描述，相关内容请参见上述实施例中的详细说明，在此不再赘叙。The secondary side winding set and the secondary side output circuit set are described in detail in the above embodiments. For details, refer to the detailed description in the above embodiments, and the details are not described herein.
参考图5，图5是本发明的伺服驱动器结构示意图。该伺服驱动器包括，开关电源51、控制电路52、智能功率模块IPM53。开关电源51用于给控制电路52、智能功率模块IPM53等电路提供不同电压等级的直流电源。Referring to Figure 5, Figure 5 is a block diagram of the servo driver of the present invention. The servo driver includes a switching power supply 51, a control circuit 52, and an intelligent power module IPM53. The switching power supply 51 is used to supply DC power supplies of different voltage levels to the control circuit 52, the intelligent power module IPM53 and the like.
其中，开关电源包括输入整流滤波电路、单片功率集成电路、变压器初级 绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集。在另一实施例中，开关电源进一步包括输入电源欠压告警电路。该开关电源的各种电路在上述实施例中有详细描述，请参考上述相关内容，在此不再赘叙。Among them, the switching power supply includes an input rectification and filtering circuit, a monolithic power integrated circuit, and a transformer primary Winding, self-feeding circuit, self-feeding winding, secondary side winding set and secondary side output circuit set. In another embodiment, the switching power supply further includes an input power supply undervoltage warning circuit. The various circuits of the switching power supply are described in detail in the above embodiments. Please refer to the above related content, which is not described herein.
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (18)

  1. 一种伺服驱动器开关电源，其中，A servo driver switching power supply, wherein
    所述开关电源包括：输入整流滤波电路、单片功率集成电路、变压器初级绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集；The switching power supply comprises: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, a self-feeding circuit, a self-feeding winding, a secondary side winding set and a secondary side output circuit set;
    所述二次侧输出电路集包括至少一个二次侧输出电路，所述二次侧绕组集包括至少一个二次侧绕组，所述至少一个二次侧绕组与所述变压器初级绕组和所述自馈电绕组耦合，且所述至少一个二次侧输出电路与所述至少一个二次侧绕组分别对应连接；The secondary side output circuit set includes at least one secondary side output circuit including at least one secondary side winding, the at least one secondary side winding and the transformer primary winding and the self a feed winding is coupled, and the at least one secondary side output circuit is respectively connected to the at least one secondary side winding;
    所述输入整流滤波电路与所述变压器初级绕组的一端耦接，所述变压器初级绕组的另一端与单片功率集成电路耦接；The input rectification filter circuit is coupled to one end of the primary winding of the transformer, and the other end of the primary winding of the transformer is coupled to a monolithic power integrated circuit;
    所述自馈电电路与所述自馈电绕组及所述单片功率集成电路耦接。The self-feed circuit is coupled to the self-feeding winding and the monolithic power integrated circuit.
  2. 根据权利要求1所述的开关电源，其中，所述二次侧输出电路集包括至少一个第一类型输出电路；The switching power supply of claim 1 wherein said secondary side output circuit set comprises at least one first type output circuit;
    其中，每个所述第一类型输出电路分别包括：Wherein each of the first type output circuits respectively comprises:
    第一二极管，其阳极连接至对应的二次侧绕组的同名端；a first diode having an anode connected to the same end of the corresponding secondary winding;
    第一电解电容，其第一端连接至所述第一二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；a first electrolytic capacitor having a first end connected to a cathode of the first diode and a second end connected to a corresponding non-identical end of the secondary winding;
    第一三端稳压器，其第一端连接至所述第一二极管与所述第一电解电容之间的节点，其第二端连接至所述第一电解电容的第二端；a first three-terminal regulator having a first end connected to a node between the first diode and the first electrolytic capacitor, and a second end connected to a second end of the first electrolytic capacitor;
    第二电解电容，其第一端连接至所述第一三端稳压器的第三端，而其第二端连接至所述第一三端稳压器的第二端；a second electrolytic capacitor having a first end connected to the third end of the first three-terminal regulator and a second end connected to the second end of the first three-terminal regulator;
    第一贴片电容，其第一端连接至所述第二电解电容的第一端，而其第二端连接至所述第二电解电容的第二端；a first chip capacitor having a first end connected to the first end of the second electrolytic capacitor and a second end connected to the second end of the second electrolytic capacitor;
    第一贴片电阻，其第一端连接至所述第一贴片电容的第一端，而其第二端连接至所述第一贴片电容的第二端；a first chip resistor having a first end connected to the first end of the first chip capacitor and a second end connected to the second end of the first chip capacitor;
    其中，连接所述第一三端稳压器的第三端、所述第二电解电容的第一端、所述第一贴片电容的第一端和所述第一贴片电阻的第一端的节点作为所述第一类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第一电解电容的第二端、所述第一三端稳压器的第二端、所述第二电解电容的 第二端、所述第一贴片电容的第二端、所述第一贴片电阻的第二端的节点作为所述第一类型输出电路的第二输出端。The third end of the first three-terminal regulator, the first end of the second electrolytic capacitor, the first end of the first chip capacitor, and the first of the first chip resistors a node of the end is used as a first output end of the output circuit of the first type; and a non-identical end of the corresponding secondary winding, a second end of the first electrolytic capacitor, and the first three ends are connected a second end of the press, the second electrolytic capacitor The second end, the second end of the first chip capacitor, and the second end of the first chip resistor serve as a second output of the first type of output circuit.
  3. 根据权利要求1所述的开关电源，其中，所述二次侧输出电路集包括至少一个第二类型输出电路；The switching power supply of claim 1 wherein said secondary side output circuit set comprises at least one second type of output circuit;
    其中，每个所述第二类型输出电路分别包括：Wherein each of the second type output circuits respectively comprises:
    第二贴片电阻，其第一端连接至对应的二次侧绕组的同名端；a second chip resistor, the first end of which is connected to the same end of the corresponding secondary winding;
    第二贴片电容，其第一端连接至所述第二贴片电阻的第二端；a second chip capacitor having a first end connected to the second end of the second chip resistor;
    第二二极管，其阳极连接至对应的所述二次侧绕组的同名端与所述第二贴片电阻之间的节点，其阴极连接至所述第二贴片电容的第二端；a second diode having an anode connected to a node between the same-name end of the corresponding secondary winding and the second chip resistor, and a cathode connected to the second end of the second chip capacitor;
    第三电解电容，其第一端连接至所述第二二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；a third electrolytic capacitor having a first end connected to a cathode of the second diode and a second end connected to a corresponding non-identical end of the secondary winding;
    电感，其第一端连接至所述第二二极管的阴极与所述第三电解电容之间的节点；An inductor having a first end connected to a node between a cathode of the second diode and the third electrolytic capacitor;
    第四电解电容，其第一端连接至所述电感的第二端，其第二端连接至所述第三电解电容的第二端；a fourth electrolytic capacitor having a first end connected to the second end of the inductor and a second end connected to the second end of the third electrolytic capacitor;
    第三贴片电容，其第一端连接至所述第四电解电容的第一端，而其第二端连接至所述第四电解电容的第二端；a third chip capacitor having a first end connected to the first end of the fourth electrolytic capacitor and a second end connected to the second end of the fourth electrolytic capacitor;
    第三贴片电阻，其第一端连接至所述第三贴片电容的第一端，而其第二端连接至所述第三贴片电容的第二端；a third chip resistor having a first end connected to the first end of the third chip capacitor and a second end connected to the second end of the third chip capacitor;
    其中，连接所述电感的第二端、所述第四电解电容的第一端、所述第三贴片电容的第一端和所述第三贴片电阻的第一端的节点作为所述第二类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第三电解电容的第二端、所述第四电解电容的第二端、所述第三贴片电容的第二端和所述第三贴片电阻的第二端的节点作为所述第二类型输出电路的第二输出端，且第二输出端接地。Wherein a node connecting the second end of the inductor, the first end of the fourth electrolytic capacitor, the first end of the third chip capacitor, and the first end of the third chip resistor as the a first output end of the second type of output circuit; and a non-identical end of the corresponding secondary winding, a second end of the third electrolytic capacitor, a second end of the fourth electrolytic capacitor, the A node of the second end of the third chip capacitor and the second end of the third chip resistor serves as a second output of the second type of output circuit, and the second output is grounded.
  4. 根据权利要求1所述的开关电源，其中，所述二次侧输出电路集包括至少一个第三类型输出电路；The switching power supply of claim 1 wherein said secondary side output circuit set comprises at least one third type of output circuit;
    其中，每个所述第三类型输出电路分别包括：Wherein each of the third type output circuits respectively comprises:
    第三二极管，其阳极连接至对应的第一二次侧绕组的同名端；a third diode having an anode connected to the same end of the corresponding first secondary winding;
    第五电解电容，其第一端连接至所述第三二极管的阴极，而其第二端连接至对应的所述第一二次侧绕组的非同名端； a fifth electrolytic capacitor having a first end connected to a cathode of the third diode and a second end connected to a corresponding non-identical end of the first secondary winding;
    第二三端稳压器，其第一端连接至所述第三二极管与所述第五电解电容之间的节点，其第二端连接至所述第五电解电容的第二端；a second three-terminal regulator having a first end connected to a node between the third diode and the fifth electrolytic capacitor, and a second end connected to a second end of the fifth electrolytic capacitor;
    第七电解电容，其第一端连接至所述第二三端稳压器的第三端，而其第二端连接至所述第二三端稳压器的第二端；a seventh electrolytic capacitor having a first end connected to the third end of the second three-terminal regulator and a second end connected to the second end of the second three-terminal regulator;
    第四贴片电容，其第一端连接至所述第七电解电容的第一端，而其第二端连接至所述第七电解电容的第二端；a fourth chip capacitor having a first end connected to the first end of the seventh electrolytic capacitor and a second end connected to the second end of the seventh electrolytic capacitor;
    第四贴片电阻，其第一端连接至所述第四贴片电容的第一端，而其第二端连接至所述第四贴片电容的第二端；a fourth chip resistor having a first end connected to the first end of the fourth chip capacitor and a second end connected to the second end of the fourth chip capacitor;
    第四二极管，其阴极连接至对应的第二二次侧绕组的非同名端；a fourth diode having a cathode connected to a non-identical end of the corresponding second secondary winding;
    第六电解电容，其第一端连接至对应的所述第二二次侧绕组的同名端，而其第二端连接至所述第四二极管的阳极，a sixth electrolytic capacitor having a first end connected to a corresponding end of the corresponding second secondary winding and a second end connected to an anode of the fourth diode
    第三三端稳压器，其第一端连接至所述第六电解电容的第一端，其第二端连接至所述第四二极管与所述第六电解电容之间的节点；a third terminal regulator having a first end connected to the first end of the sixth electrolytic capacitor and a second end connected to a node between the fourth diode and the sixth electrolytic capacitor;
    第八电解电容，其第一端连接至所述第三三端稳压器的第一端，而其第二端连接至所述第三三端稳压器的第三端；An eighth electrolytic capacitor having a first end connected to the first end of the third three-terminal regulator and a second end connected to the third end of the third three-terminal regulator;
    第五贴片电容，其第一端连接至所述第八电解电容的第一端，而其第二端连接至所述第八电解电容的第二端；a fifth chip capacitor having a first end connected to the first end of the eighth electrolytic capacitor and a second end connected to the second end of the eighth electrolytic capacitor;
    第五贴片电阻，其第一端连接至所述第五贴片电容的第一端，而其第二端连接至所述第五贴片电容的第二端；a fifth chip resistor having a first end connected to the first end of the fifth chip capacitor and a second end connected to the second end of the fifth chip capacitor;
    其中，连接所述第二三端稳压器的第三端、所述第七电解电容的第一端、所述第四贴片电容的第一端和所述第四贴片电阻的第一端的节点作为所述第三类型输出电路的第一输出端；而连接对应的所述第一二次侧绕组的非同名端、所述第二二次侧绕组的同名端、所述第五电解电容的第二端、所述第六电解电容的第一端、所述第二三端稳压器的第二端、所述第三三端稳压器的第一端、所述第七电解电容的第二端、所述第八电解电容的第一端、所述第四贴片电容的第二端、所述第五贴片电容的第一端、所述第四贴片电阻的第二端和所述第五贴片电阻的第一端的节点作为所述第三类型输出电路的第二输出端；连接所述第三三端稳压器的第三端、所述第八电解电容的第二端、所述第五贴片电容的第二端和所述第五贴片电阻的第二端的节点作为所述第三类型输出电路的第三输出端；The third end of the second three-terminal regulator, the first end of the seventh electrolytic capacitor, the first end of the fourth chip capacitor, and the first of the fourth chip resistors a node of the end serves as a first output end of the output circuit of the third type; and connects a non-identical end of the corresponding first secondary winding, a terminal of the same name of the second secondary winding, and the fifth a second end of the electrolytic capacitor, a first end of the sixth electrolytic capacitor, a second end of the second three-terminal regulator, a first end of the third three-terminal regulator, and the seventh a second end of the electrolytic capacitor, a first end of the eighth electrolytic capacitor, a second end of the fourth chip capacitor, a first end of the fifth chip capacitor, and a fourth chip resistor a second end and a node of the first end of the fifth chip resistor as a second output end of the third type output circuit; a third end connected to the third three-terminal regulator, the eighth a second end of the electrolytic capacitor, a second end of the fifth chip capacitor, and a node of the second end of the fifth chip resistor as the third type Third output circuit;
    其中，所述第一二次侧绕组与所述第二二次侧绕组采用自由飞线，直接将 电线引出焊接在印刷电路板上。Wherein the first secondary winding and the second secondary winding adopt a free flying line, which will directly The wires are led out and soldered to the printed circuit board.
  5. 根据权利要求4所述的开关电源，其中，所述第三类型输出电路进一步包括第九电解电容及第六贴片电容：The switching power supply of claim 4, wherein the third type of output circuit further comprises a ninth electrolytic capacitor and a sixth chip capacitor:
    第九电解电容，其第一端连接至所述第四贴片电阻的第一端，而其第二端连接至所述第四贴片电阻的第二端；a ninth electrolytic capacitor having a first end connected to the first end of the fourth chip resistor and a second end connected to the second end of the fourth chip resistor;
    第六贴片电容，其第一端连接至所述第九电解电容的第一端，而其第二端连接至所述第九电解电容的第二端；a sixth chip capacitor having a first end connected to the first end of the ninth electrolytic capacitor and a second end connected to the second end of the ninth electrolytic capacitor;
    其中，所述第九电解电容的第一端和所述第六贴片电容的第一端连接至所述第三类型输出电路的第一输出端；所述第九电解电容的第二端和所述第六贴片电容的第二端连接至所述第三类型输出电路的第二输出端及第三输出端；Wherein the first end of the ninth electrolytic capacitor and the first end of the sixth chip capacitor are connected to a first output end of the third type output circuit; the second end of the ninth electrolytic capacitor The second end of the sixth chip capacitor is connected to the second output end and the third output end of the third type output circuit;
    其中，所述第九电解电容及所述第六贴片电容为滤波电容，用于降低对控制电路的干扰。The ninth electrolytic capacitor and the sixth chip capacitor are filter capacitors for reducing interference to the control circuit.
  6. 根据权利要求1所述的开关电源，其中，所述整流滤波电路包括整流桥及第十电解电容；The switching power supply of claim 1 , wherein the rectifying and filtering circuit comprises a rectifier bridge and a tenth electrolytic capacitor;
    第十电解电容，其第一端连接至对应的变压器初级绕组的非同名端，而其第二端接地；a tenth electrolytic capacitor having a first end connected to a non-identical end of a corresponding transformer primary winding and a second end grounded;
    其中，所述整流桥进一步包括：Wherein, the rectifier bridge further comprises:
    第七二极管，其阴极连接至所述第十电解电容与所述变压器初级绕组的非同名端之间的节点；a seventh diode having a cathode connected to a node between the tenth electrolytic capacitor and a non-identical end of the primary winding of the transformer;
    第八二极管，其阴极连接至所述第七二极管的阳极，而其阳极连接至所述第十电解电容的第二端；An eighth diode having a cathode connected to the anode of the seventh diode and an anode connected to the second end of the tenth electrolytic capacitor;
    第五二极管，其阴极连接至所述第十电解电容与所述第七二极管之间的节点；a fifth diode having a cathode connected to a node between the tenth electrolytic capacitor and the seventh diode;
    第六二极管，其阴极连接至所述第五二极管的阳极，而其阳极连接至所述第十电解电容与所述第八二极管之间的节点。A sixth diode having a cathode connected to the anode of the fifth diode and an anode connected to a node between the tenth electrolytic capacitor and the eighth diode.
  7. 根据权利要求1所述的开关电源，其中，所述自馈电电路包括：The switching power supply of claim 1 wherein said self-feeding circuit comprises:
    第六贴片电阻，其第二端连接至自馈电绕组的同名端，而所述自馈电绕组的非同名端接地；a sixth chip resistor, the second end of which is connected to the same end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded;
    第九二极管，其阳极连接至所述第六贴片电阻的第一端；a ninth diode having an anode connected to the first end of the sixth chip resistor;
    第十一电解电容，其第一端连接至所述第九二极管的阴极，而其第二端接地。 The eleventh electrolytic capacitor has a first end connected to the cathode of the ninth diode and a second end grounded.
  8. 根据权利要求1所述的开关电源，其中，所述单片功率集成电路包括电源管理芯片及***电路；The switching power supply of claim 1 wherein said monolithic power integrated circuit comprises a power management chip and peripheral circuitry;
    所述电源管理芯片的第七端连接至所述自馈电电路的所述第十一电解电容的第一端；所述电源管理芯片的第五端连接至所述变压器初级绕组的同名端；The seventh end of the power management chip is connected to the first end of the eleventh electrolytic capacitor of the self-feed circuit; the fifth end of the power management chip is connected to the same end of the primary winding of the transformer;
    所述***电路进一步包括：The peripheral circuit further includes:
    第七贴片电容，其第一端连接至所述电源管理芯片的第一端，而其第二端连接至所述电源管理芯片的第八端；a seventh chip capacitor having a first end connected to the first end of the power management chip and a second end connected to the eighth end of the power management chip;
    第七贴片电阻，其第一端连接至所述电源管理芯片的第三端，而其第二端连接至所述第七贴片电容的第二端；a seventh chip resistor having a first end connected to the third end of the power management chip and a second end connected to the second end of the seventh chip capacitor;
    第八贴片电阻，其第一端连接至所述电源管理芯片的第三端与所述第七贴片电阻之间的节点，其第二端连接至所述第七贴片电阻的第二端；An eighth chip resistor having a first end connected to a node between the third end of the power management chip and the seventh chip resistor, and a second end connected to the second chip resistor end;
    其中，连接所述第八贴片电阻的第二端、所述第七贴片电阻的第二端、所述第七贴片电容的第二端与所述电源管理芯片的第八端的节点接地。The second end of the eighth chip resistor, the second end of the seventh chip resistor, the second end of the seventh chip capacitor, and the node of the eighth end of the power management chip are grounded. .
  9. 根据权利要求1所述的开关电源，其中，进一步包括输入电源欠压告警电路，The switching power supply of claim 1 further comprising an input power supply undervoltage warning circuit,
    所述输入电源欠压告警电路包括：The input power supply undervoltage alarm circuit includes:
    第九贴片电阻，其第一端连接至所述整流滤波电路的所述第十电解电容的第一端；a ninth chip resistor having a first end connected to the first end of the tenth electrolytic capacitor of the rectifying and filtering circuit;
    第十贴片电阻，其第一端连接至所述第九贴片电阻的第二端；a tenth chip resistor having a first end connected to the second end of the ninth chip resistor;
    第十一贴片电阻，其第一端连接至所述第十贴片电阻的第二端；The eleventh chip resistor has a first end connected to the second end of the tenth chip resistor;
    第十二贴片电阻，其第一端连接至所述第十一贴片电阻的第二端；a twelfth chip resistor having a first end connected to the second end of the eleventh chip resistor;
    第十三贴片电阻，其第一端连接至所述第十二贴片电阻的第二端；a thirteenth chip resistor having a first end connected to the second end of the twelfth chip resistor;
    第十四贴片电阻，其第一端连接至所述第十三贴片电阻的第二端；a fourteenth chip resistor having a first end connected to the second end of the thirteenth chip resistor;
    第一稳压二极管，其阴极连接至所述第十四贴片电阻的第二端；a first Zener diode having a cathode connected to the second end of the fourteenth chip resistor;
    第二稳压二极管，其阴极连接至所述第一稳压二极管的阳极；a second Zener diode having a cathode connected to an anode of the first Zener diode;
    第三稳压二极管，其阴极连接至所述第二稳压二极管的阳极；a third Zener diode having a cathode connected to an anode of the second Zener diode;
    光电耦合器发光管，其阳极连接至所述第三稳压二极管的阳极，而其阴极接地；a photocoupler arc tube having an anode connected to an anode of the third Zener diode and a cathode connected to the ground;
    第十五贴片电阻，其第二端接地；The fifteenth chip resistor has a second end grounded;
    第八贴片电容，其第一端连接至所述第十五贴片电阻的第一端，而其第二端连接至所述第十五贴片电阻的第二端，且所述第八贴片电容与所述第十五贴 片电阻之间的节点接地；An eighth chip capacitor having a first end connected to the first end of the fifteenth chip resistor and a second end connected to the second end of the fifteenth chip resistor, and the eighth Chip capacitor and the fifteenth sticker The node between the chip resistors is grounded;
    光敏三极管，其第二端连接至所述第十五贴片电阻的第一端，而其第一端连接至外部电路；a phototransistor having a second end connected to the first end of the fifteenth chip resistor and a first end connected to the external circuit;
    其中，当所述输入整流滤波电路输入电源低于预设电压值稳压管导通，所述光电耦合器发光管发光，所述光敏三极管接收光源达到饱和，发出输入电源欠压的告警信号。Wherein, when the input rectification filter circuit input power is lower than the preset voltage value, the voltage regulator tube is turned on, the photocoupler illumination tube emits light, the phototransistor receiving light source reaches saturation, and an alarm signal for input power supply undervoltage is issued.
  10. 一种伺服驱动器，包括开关电源，其中，所述开关电源包括：输入整流滤波电路、单片功率集成电路、变压器初级绕组、自馈电电路、自馈电绕组、二次侧绕组集及二次侧输出电路集；A servo driver includes a switching power supply, wherein the switching power supply comprises: an input rectification and filtering circuit, a monolithic power integrated circuit, a transformer primary winding, a self-feeding circuit, a self-feeding winding, a secondary winding set, and a second Side output circuit set;
    所述二次侧输出电路集包括至少一个二次侧输出电路，所述二次侧绕组集包括至少一个二次侧绕组，所述至少一个二次侧绕组与所述变压器初级绕组和所述自馈电绕组耦合，且所述至少一个二次侧输出电路与所述至少一个二次侧绕组分别对应连接；The secondary side output circuit set includes at least one secondary side output circuit including at least one secondary side winding, the at least one secondary side winding and the transformer primary winding and the self a feed winding is coupled, and the at least one secondary side output circuit is respectively connected to the at least one secondary side winding;
    所述输入整流滤波电路与所述变压器初级绕组的一端耦接，所述变压器初级绕组的另一端与单片功率集成电路耦接；The input rectification filter circuit is coupled to one end of the primary winding of the transformer, and the other end of the primary winding of the transformer is coupled to a monolithic power integrated circuit;
    所述自馈电电路与所述自馈电绕组及所述单片功率集成电路耦接。The self-feed circuit is coupled to the self-feeding winding and the monolithic power integrated circuit.
  11. 根据权利要求10所述的伺服驱动器，其中，所述二次侧输出电路集包括至少一个第一类型输出电路；The servo driver according to claim 10, wherein said secondary side output circuit set comprises at least one first type output circuit;
    其中，每个所述第一类型输出电路分别包括：Wherein each of the first type output circuits respectively comprises:
    第一二极管，其阳极连接至对应的二次侧绕组的同名端；a first diode having an anode connected to the same end of the corresponding secondary winding;
    第一电解电容，其第一端连接至所述第一二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；a first electrolytic capacitor having a first end connected to a cathode of the first diode and a second end connected to a corresponding non-identical end of the secondary winding;
    第一三端稳压器，其第一端连接至所述第一二极管与所述第一电解电容之间的节点，其第二端连接至所述第一电解电容的第二端；a first three-terminal regulator having a first end connected to a node between the first diode and the first electrolytic capacitor, and a second end connected to a second end of the first electrolytic capacitor;
    第二电解电容，其第一端连接至所述第一三端稳压器的第三端，而其第二端连接至所述第一三端稳压器的第二端；a second electrolytic capacitor having a first end connected to the third end of the first three-terminal regulator and a second end connected to the second end of the first three-terminal regulator;
    第一贴片电容，其第一端连接至所述第二电解电容的第一端，而其第二端连接至所述第二电解电容的第二端；a first chip capacitor having a first end connected to the first end of the second electrolytic capacitor and a second end connected to the second end of the second electrolytic capacitor;
    第一贴片电阻，其第一端连接至所述第一贴片电容的第一端，而其第二端连接至所述第一贴片电容的第二端；a first chip resistor having a first end connected to the first end of the first chip capacitor and a second end connected to the second end of the first chip capacitor;
    其中，连接所述第一三端稳压器的第三端、所述第二电解电容的第一端、 所述第一贴片电容的第一端和所述第一贴片电阻的第一端的节点作为所述第一类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第一电解电容的第二端、所述第一三端稳压器的第二端、所述第二电解电容的第二端、所述第一贴片电容的第二端、所述第一贴片电阻的第二端的节点作为所述第一类型输出电路的第二输出端。Wherein the third end of the first three-terminal regulator, the first end of the second electrolytic capacitor, a first end of the first chip capacitor and a node of the first end of the first chip resistor as a first output end of the first type of output circuit; and a corresponding second side winding is connected a non-identical end, a second end of the first electrolytic capacitor, a second end of the first three-terminal regulator, a second end of the second electrolytic capacitor, and a second second of the first chip capacitor The node of the second end of the first chip resistor serves as a second output of the first type of output circuit.
  12. 根据权利要求10所述的伺服驱动器，其中，所述二次侧输出电路集包括至少一个第二类型输出电路；The servo driver according to claim 10, wherein said secondary side output circuit set comprises at least one second type output circuit;
    其中，每个所述第二类型输出电路分别包括：Wherein each of the second type output circuits respectively comprises:
    第二贴片电阻，其第一端连接至对应的二次侧绕组的同名端；a second chip resistor, the first end of which is connected to the same end of the corresponding secondary winding;
    第二贴片电容，其第一端连接至所述第二贴片电阻的第二端；a second chip capacitor having a first end connected to the second end of the second chip resistor;
    第二二极管，其阳极连接至对应的所述二次侧绕组的同名端与所述第二贴片电阻之间的节点，其阴极连接至所述第二贴片电容的第二端；a second diode having an anode connected to a node between the same-name end of the corresponding secondary winding and the second chip resistor, and a cathode connected to the second end of the second chip capacitor;
    第三电解电容，其第一端连接至所述第二二极管的阴极，而其第二端连接至对应的所述二次侧绕组的非同名端；a third electrolytic capacitor having a first end connected to a cathode of the second diode and a second end connected to a corresponding non-identical end of the secondary winding;
    电感，其第一端连接至所述第二二极管的阴极与所述第三电解电容之间的节点；An inductor having a first end connected to a node between a cathode of the second diode and the third electrolytic capacitor;
    第四电解电容，其第一端连接至所述电感的第二端，其第二端连接至所述第三电解电容的第二端；a fourth electrolytic capacitor having a first end connected to the second end of the inductor and a second end connected to the second end of the third electrolytic capacitor;
    第三贴片电容，其第一端连接至所述第四电解电容的第一端，而其第二端连接至所述第四电解电容的第二端；a third chip capacitor having a first end connected to the first end of the fourth electrolytic capacitor and a second end connected to the second end of the fourth electrolytic capacitor;
    第三贴片电阻，其第一端连接至所述第三贴片电容的第一端，而其第二端连接至所述第三贴片电容的第二端；a third chip resistor having a first end connected to the first end of the third chip capacitor and a second end connected to the second end of the third chip capacitor;
    其中，连接所述电感的第二端、所述第四电解电容的第一端、所述第三贴片电容的第一端和所述第三贴片电阻的第一端的节点作为所述第二类型输出电路的第一输出端；而连接对应的所述二次侧绕组的非同名端、所述第三电解电容的第二端、所述第四电解电容的第二端、所述第三贴片电容的第二端和所述第三贴片电阻的第二端的节点作为所述第二类型输出电路的第二输出端，且第二输出端接地。Wherein a node connecting the second end of the inductor, the first end of the fourth electrolytic capacitor, the first end of the third chip capacitor, and the first end of the third chip resistor as the a first output end of the second type of output circuit; and a non-identical end of the corresponding secondary winding, a second end of the third electrolytic capacitor, a second end of the fourth electrolytic capacitor, the A node of the second end of the third chip capacitor and the second end of the third chip resistor serves as a second output of the second type of output circuit, and the second output is grounded.
  13. 根据权利要求10所述的伺服驱动器，其中，所述二次侧输出电路集包括至少一个第三类型输出电路；The servo driver according to claim 10, wherein said secondary side output circuit set comprises at least one third type output circuit;
    其中，每个所述第三类型输出电路分别包括： Wherein each of the third type output circuits respectively comprises:
    第三二极管，其阳极连接至对应的第一二次侧绕组的同名端；a third diode having an anode connected to the same end of the corresponding first secondary winding;
    第五电解电容，其第一端连接至所述第三二极管的阴极，而其第二端连接至对应的所述第一二次侧绕组的非同名端；a fifth electrolytic capacitor having a first end connected to a cathode of the third diode and a second end connected to a corresponding non-identical end of the first secondary winding;
    第二三端稳压器，其第一端连接至所述第三二极管与所述第五电解电容之间的节点，其第二端连接至所述第五电解电容的第二端；a second three-terminal regulator having a first end connected to a node between the third diode and the fifth electrolytic capacitor, and a second end connected to a second end of the fifth electrolytic capacitor;
    第七电解电容，其第一端连接至所述第二三端稳压器的第三端，而其第二端连接至所述第二三端稳压器的第二端；a seventh electrolytic capacitor having a first end connected to the third end of the second three-terminal regulator and a second end connected to the second end of the second three-terminal regulator;
    第四贴片电容，其第一端连接至所述第七电解电容的第一端，而其第二端连接至所述第七电解电容的第二端；a fourth chip capacitor having a first end connected to the first end of the seventh electrolytic capacitor and a second end connected to the second end of the seventh electrolytic capacitor;
    第四贴片电阻，其第一端连接至所述第四贴片电容的第一端，而其第二端连接至所述第四贴片电容的第二端；a fourth chip resistor having a first end connected to the first end of the fourth chip capacitor and a second end connected to the second end of the fourth chip capacitor;
    第四二极管，其阴极连接至对应的第二二次侧绕组的非同名端；a fourth diode having a cathode connected to a non-identical end of the corresponding second secondary winding;
    第六电解电容，其第一端连接至对应的所述第二二次侧绕组的同名端，而其第二端连接至所述第四二极管的阳极，a sixth electrolytic capacitor having a first end connected to a corresponding end of the corresponding second secondary winding and a second end connected to an anode of the fourth diode
    第三三端稳压器，其第一端连接至所述第六电解电容的第一端，其第二端连接至所述第四二极管与所述第六电解电容之间的节点；a third terminal regulator having a first end connected to the first end of the sixth electrolytic capacitor and a second end connected to a node between the fourth diode and the sixth electrolytic capacitor;
    第八电解电容，其第一端连接至所述第三三端稳压器的第一端，而其第二端连接至所述第三三端稳压器的第三端；An eighth electrolytic capacitor having a first end connected to the first end of the third three-terminal regulator and a second end connected to the third end of the third three-terminal regulator;
    第五贴片电容，其第一端连接至所述第八电解电容的第一端，而其第二端连接至所述第八电解电容的第二端；a fifth chip capacitor having a first end connected to the first end of the eighth electrolytic capacitor and a second end connected to the second end of the eighth electrolytic capacitor;
    第五贴片电阻，其第一端连接至所述第五贴片电容的第一端，而其第二端连接至所述第五贴片电容的第二端；a fifth chip resistor having a first end connected to the first end of the fifth chip capacitor and a second end connected to the second end of the fifth chip capacitor;
    其中，连接所述第二三端稳压器的第三端、所述第七电解电容的第一端、所述第四贴片电容的第一端和所述第四贴片电阻的第一端的节点作为所述第三类型输出电路的第一输出端；而连接对应的所述第一二次侧绕组的非同名端、所述第二二次侧绕组的同名端、所述第五电解电容的第二端、所述第六电解电容的第一端、所述第二三端稳压器的第二端、所述第三三端稳压器的第一端、所述第七电解电容的第二端、所述第八电解电容的第一端、所述第四贴片电容的第二端、所述第五贴片电容的第一端、所述第四贴片电阻的第二端和所述第五贴片电阻的第一端的节点作为所述第三类型输出电路的第二输出端；连接所述第三三端稳压器的第三端、所述第八电解电容的第二端、所述第五贴片电容 的第二端和所述第五贴片电阻的第二端的节点作为所述第三类型输出电路的第三输出端；The third end of the second three-terminal regulator, the first end of the seventh electrolytic capacitor, the first end of the fourth chip capacitor, and the first of the fourth chip resistors a node of the end serves as a first output end of the output circuit of the third type; and connects a non-identical end of the corresponding first secondary winding, a terminal of the same name of the second secondary winding, and the fifth a second end of the electrolytic capacitor, a first end of the sixth electrolytic capacitor, a second end of the second three-terminal regulator, a first end of the third three-terminal regulator, and the seventh a second end of the electrolytic capacitor, a first end of the eighth electrolytic capacitor, a second end of the fourth chip capacitor, a first end of the fifth chip capacitor, and a fourth chip resistor a second end and a node of the first end of the fifth chip resistor as a second output end of the third type output circuit; a third end connected to the third three-terminal regulator, the eighth a second end of the electrolytic capacitor, the fifth chip capacitor a second end of the second end and a node of the second end of the fifth chip resistor as a third output of the third type of output circuit;
    其中，所述第一二次侧绕组与所述第二二次侧绕组采用自由飞线，直接将电线引出焊接在印刷电路板上。Wherein, the first secondary winding and the second secondary winding adopt a free flying line, and the electric wire is directly led out and soldered on the printed circuit board.
  14. 根据权利要求10所述的伺服驱动器，其中，所述第三类型输出电路进一步包括第九电解电容及第六贴片电容：The servo driver of claim 10, wherein the third type of output circuit further comprises a ninth electrolytic capacitor and a sixth chip capacitor:
    第九电解电容，其第一端连接至所述第四贴片电阻的第一端，而其第二端连接至所述第四贴片电阻的第二端；a ninth electrolytic capacitor having a first end connected to the first end of the fourth chip resistor and a second end connected to the second end of the fourth chip resistor;
    第六贴片电容，其第一端连接至所述第九电解电容的第一端，而其第二端连接至所述第九电解电容的第二端；a sixth chip capacitor having a first end connected to the first end of the ninth electrolytic capacitor and a second end connected to the second end of the ninth electrolytic capacitor;
    其中，所述第九电解电容的第一端和所述第六贴片电容的第一端连接至所述第三类型输出电路的第一输出端；所述第九电解电容的第二端和所述第六贴片电容的第二端连接至所述第三类型输出电路的第二输出端及第三输出端；Wherein the first end of the ninth electrolytic capacitor and the first end of the sixth chip capacitor are connected to a first output end of the third type output circuit; the second end of the ninth electrolytic capacitor The second end of the sixth chip capacitor is connected to the second output end and the third output end of the third type output circuit;
    其中，所述第九电解电容及所述第六贴片电容为滤波电容，用于降低对控制电路的干扰。The ninth electrolytic capacitor and the sixth chip capacitor are filter capacitors for reducing interference to the control circuit.
  15. 根据权利要求10所述的伺服驱动器，其中，所述整流滤波电路包括整流桥及第十电解电容；The servo driver according to claim 10, wherein said rectifying and filtering circuit comprises a rectifier bridge and a tenth electrolytic capacitor;
    第十电解电容，其第一端连接至对应的变压器初级绕组的非同名端，而其第二端接地；a tenth electrolytic capacitor having a first end connected to a non-identical end of a corresponding transformer primary winding and a second end grounded;
    其中，所述整流桥进一步包括：Wherein, the rectifier bridge further comprises:
    第七二极管，其阴极连接至所述第十电解电容与所述变压器初级绕组的非同名端之间的节点；a seventh diode having a cathode connected to a node between the tenth electrolytic capacitor and a non-identical end of the primary winding of the transformer;
    第八二极管，其阴极连接至所述第七二极管的阳极，而其阳极连接至所述第十电解电容的第二端；An eighth diode having a cathode connected to the anode of the seventh diode and an anode connected to the second end of the tenth electrolytic capacitor;
    第五二极管，其阴极连接至所述第十电解电容与所述第七二极管之间的节点；a fifth diode having a cathode connected to a node between the tenth electrolytic capacitor and the seventh diode;
    第六二极管，其阴极连接至所述第五二极管的阳极，而其阳极连接至所述第十电解电容与所述第八二极管之间的节点。A sixth diode having a cathode connected to the anode of the fifth diode and an anode connected to a node between the tenth electrolytic capacitor and the eighth diode.
  16. 根据权利要求10所述的伺服驱动器，其中，所述自馈电电路包括：The servo drive of claim 10 wherein said self-feeding circuit comprises:
    第六贴片电阻，其第二端连接至自馈电绕组的同名端，而所述自馈电绕组的非同名端接地； a sixth chip resistor, the second end of which is connected to the same end of the self-feeding winding, and the non-identical end of the self-feeding winding is grounded;
    第九二极管，其阳极连接至所述第六贴片电阻的第一端；a ninth diode having an anode connected to the first end of the sixth chip resistor;
    第十一电解电容，其第一端连接至所述第九二极管的阴极，而其第二端接地。The eleventh electrolytic capacitor has a first end connected to the cathode of the ninth diode and a second end grounded.
  17. 根据权利要求10所述的伺服驱动器，其中，所述单片功率集成电路包括电源管理芯片及***电路；The servo driver according to claim 10, wherein said monolithic power integrated circuit comprises a power management chip and peripheral circuits;
    所述电源管理芯片的第七端连接至所述自馈电电路的所述第十一电解电容的第一端；所述电源管理芯片的第五端连接至所述变压器初级绕组的同名端；The seventh end of the power management chip is connected to the first end of the eleventh electrolytic capacitor of the self-feed circuit; the fifth end of the power management chip is connected to the same end of the primary winding of the transformer;
    所述***电路进一步包括：The peripheral circuit further includes:
    第七贴片电容，其第一端连接至所述电源管理芯片的第一端，而其第二端连接至所述电源管理芯片的第八端；a seventh chip capacitor having a first end connected to the first end of the power management chip and a second end connected to the eighth end of the power management chip;
    第七贴片电阻，其第一端连接至所述电源管理芯片的第三端，而其第二端连接至所述第七贴片电容的第二端；a seventh chip resistor having a first end connected to the third end of the power management chip and a second end connected to the second end of the seventh chip capacitor;
    第八贴片电阻，其第一端连接至所述电源管理芯片的第三端与所述第七贴片电阻之间的节点，其第二端连接至所述第七贴片电阻的第二端；An eighth chip resistor having a first end connected to a node between the third end of the power management chip and the seventh chip resistor, and a second end connected to the second chip resistor end;
    其中，连接所述第八贴片电阻的第二端、所述第七贴片电阻的第二端、所述第七贴片电容的第二端与所述电源管理芯片的第八端的节点接地。The second end of the eighth chip resistor, the second end of the seventh chip resistor, the second end of the seventh chip capacitor, and the node of the eighth end of the power management chip are grounded. .
  18. 根据权利要求10所述的伺服驱动器，其中，所述开关电源进一步包括输入电源欠压告警电路，The servo driver according to claim 10, wherein said switching power supply further comprises an input power supply undervoltage warning circuit,
    所述输入电源欠压告警电路包括：The input power supply undervoltage alarm circuit includes:
    第九贴片电阻，其第一端连接至所述整流滤波电路的所述第十电解电容的第一端；a ninth chip resistor having a first end connected to the first end of the tenth electrolytic capacitor of the rectifying and filtering circuit;
    第十贴片电阻，其第一端连接至所述第九贴片电阻的第二端；a tenth chip resistor having a first end connected to the second end of the ninth chip resistor;
    第十一贴片电阻，其第一端连接至所述第十贴片电阻的第二端；The eleventh chip resistor has a first end connected to the second end of the tenth chip resistor;
    第十二贴片电阻，其第一端连接至所述第十一贴片电阻的第二端；a twelfth chip resistor having a first end connected to the second end of the eleventh chip resistor;
    第十三贴片电阻，其第一端连接至所述第十二贴片电阻的第二端；a thirteenth chip resistor having a first end connected to the second end of the twelfth chip resistor;
    第十四贴片电阻，其第一端连接至所述第十三贴片电阻的第二端；a fourteenth chip resistor having a first end connected to the second end of the thirteenth chip resistor;
    第一稳压二极管，其阴极连接至所述第十四贴片电阻的第二端；a first Zener diode having a cathode connected to the second end of the fourteenth chip resistor;
    第二稳压二极管，其阴极连接至所述第一稳压二极管的阳极；a second Zener diode having a cathode connected to an anode of the first Zener diode;
    第三稳压二极管，其阴极连接至所述第二稳压二极管的阳极；a third Zener diode having a cathode connected to an anode of the second Zener diode;
    光电耦合器发光管，其阳极连接至所述第三稳压二极管的阳极，而其阴极接地； a photocoupler arc tube having an anode connected to an anode of the third Zener diode and a cathode connected to the ground;
    第十五贴片电阻，其第二端接地；The fifteenth chip resistor has a second end grounded;
    第八贴片电容，其第一端连接至所述第十五贴片电阻的第一端，而其第二端连接至所述第十五贴片电阻的第二端，且所述第八贴片电容与所述第十五贴片电阻之间的节点接地；An eighth chip capacitor having a first end connected to the first end of the fifteenth chip resistor and a second end connected to the second end of the fifteenth chip resistor, and the eighth a node ground between the chip capacitor and the fifteenth chip resistor;
    光敏三极管，其第二端连接至所述第十五贴片电阻的第一端，而其第一端连接至外部电路；a phototransistor having a second end connected to the first end of the fifteenth chip resistor and a first end connected to the external circuit;
    其中，当所述输入整流滤波电路输入电源低于预设电压值稳压管导通，所述光电耦合器发光管发光，所述光敏三极管接收光源达到饱和，发出输入电源欠压的告警信号。 Wherein, when the input rectification filter circuit input power is lower than the preset voltage value, the voltage regulator tube is turned on, the photocoupler illumination tube emits light, the phototransistor receiving light source reaches saturation, and an alarm signal for input power supply undervoltage is issued.
PCT/CN2017/102271 2017-09-19 2017-09-19 Servo drive switch power supply and servo drive WO2019056178A1 (en)

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