CN106602883B - The power MOS pipe Switching Power Supply of no auxiliary winding integrates power supply circuit - Google Patents
The power MOS pipe Switching Power Supply of no auxiliary winding integrates power supply circuit Download PDFInfo
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- CN106602883B CN106602883B CN201710140051.8A CN201710140051A CN106602883B CN 106602883 B CN106602883 B CN 106602883B CN 201710140051 A CN201710140051 A CN 201710140051A CN 106602883 B CN106602883 B CN 106602883B
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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
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention relates to a kind of power MOS pipe Switching Power Supplies of no auxiliary winding to integrate power supply circuit, including high-voltage rectifying filter circuit module, transformer and integrated circuit modules, the output end of the high-voltage rectifying filter circuit module is connected with the different name end of the primary side winding of the transformer, and the integrated circuit modules are connected with the Same Name of Ends of the primary side winding of the transformer.Power supply circuit is integrated using the power MOS pipe Switching Power Supply without auxiliary winding of the structure, the winding all the way of transformer is eliminated, enormously simplifies peripheral circuit, reduce production cost, be with a wide range of applications.
Description
Technical field
The present invention relates to technical field of integrated circuits more particularly to integrated circuit field of circuit technology, in particular to
A kind of integrated power supply circuit of the power MOS pipe Switching Power Supply of no auxiliary winding.
Background technique
Traditional isolation type switching power supply transformer includes three groups of windings, is primary side winding, the supply of storage energy respectively
The vice-side winding of load and the auxiliary winding of supplying intergrated circuit with electricity realize collection as shown in Figure 1 for traditional auxiliary winding mode
The isolation type switching power supply circuit structure powered at circuit.
Tradition auxiliary winding mode shown in FIG. 1 realizes the working principle of integrated circuit are as follows: AC alternating current is through high pressure
Rectification filtering module is converted into high-voltage dc signal VBUCK, and VBUCK is added on RST, is given before integrated circuit starting by it
CVCC charging, after VCC voltage reaches integrated circuit starting voltage, integrated circuit is started to work, and M0 is normally turned on and off,
As energy transmission load both end voltage is gradually built up, transformer auxiliary winding L3 induces voltage and passes through DVCC at the same time
It charges to CVCC to provide integrated circuit operation institute electricity demand.The peripheral circuit of auxiliary winding power supply structure is complicated, production cost
It is higher.
Summary of the invention
The purpose of the present invention is overcoming the above-mentioned prior art, providing one kind can be realized simplified periphery electricity
Road, the power MOS pipe Switching Power Supply without auxiliary winding for lowering production cost integrate power supply circuit.
To achieve the goals above, the present invention has following constitute:
The power MOS pipe Switching Power Supply without auxiliary winding integrates power supply circuit, which is characterized in that the circuit includes
High-voltage rectifying filter circuit module, transformer and integrated circuit modules, the output end of the high-voltage rectifying filter circuit module
It is connected with the different name end of the primary side winding of the transformer, the primary side of the integrated circuit modules and the transformer
The Same Name of Ends of winding is connected.
Preferably, the high-voltage rectifying filter circuit module includes high-voltage rectifying filter circuit and AC power source, it is described
The output end of AC power source be connected with the input terminal of the high-voltage rectifying filter circuit.
Preferably, the transformer is isolated transformer, the isolated transformer further includes secondary side rectification two
The anode of pole pipe, the secondary side rectifier diode is connected with the Same Name of Ends of the vice-side winding of the isolated transformer,
The cathode of the secondary side rectifier diode is connected with output loading.
Preferably, the integrated circuit modules include charging time controller, three-state driver, pulse width modulator, MOS
Power tube, parasitic capacitance, VCC rectifier diode and MOS auxiliary switch, the circuit further include energy storage filter capacitor and original
Side current sampling resistor, the first end of the charging time controller respectively with the cathode of the VCC rectifier diode and
The first end of the energy storage filter capacitor is connected, the second end of the charging time controller and the pulsewidth modulation
The first end of device is connected, and the third end of the charging time controller is connected with the first end of the three-state driver
Connect, the second end of the three-state driver respectively with the grid of the MOS power tube and the parasitic capacitance first
End is connected, and the drain electrode of the MOS power tube is connected with the Same Name of Ends of the primary side winding of the transformer, described
The source electrode of MOS power tube respectively with the second end of the parasitic capacitance, the anode of the VCC rectifier diode and described
The drain electrode of MOS auxiliary switch is connected, the grid of the second end of the pulse width modulator and the MOS auxiliary switch
It is connected, the source electrode of the MOS auxiliary switch is connected with the first end of the primary current sampling resistor, described
The second end of primary current sampling resistor is grounded, the second end ground connection of the energy storage filter capacitor.
Preferably, the integrated circuit modules include charging time controller, driver, pulse width modulator, MOS power
Pipe, first diode, bootstrap capacitor, VCC rectifier diode and MOS auxiliary switch, the circuit further include energy storage filtering
Capacitor and primary current sampling resistor, the first end of the charging time controller respectively with the VCC rectifier diode
Cathode, the energy storage filter capacitor first end be connected with the anode of the first diode, when the described charging
Between the second end of controller be connected with the first end of the pulse width modulator, the third end of the charging time controller
It is connected with the first end of the driver, the third end of the driver is connected with the grid of the MOS power tube
It connects, the drain electrode of the MOS power tube is connected with the Same Name of Ends of the primary side winding of the transformer, the MOS power
The source electrode of pipe respectively with the 4th end of the driver, the second end of the bootstrap capacitor, the VCC rectifier diode
Anode be connected with the drain electrode of the MOS auxiliary switch, the second end of the bootstrap capacitor respectively with the drive
The second end of dynamic device is connected with the cathode of the first diode, the second end of the pulse width modulator and described
The grid of MOS auxiliary switch is connected, the source electrode of the MOS auxiliary switch and the primary current sampling resistor
First end is connected, the second end ground connection of the primary current sampling resistor, the second termination of the energy storage filter capacitor
Ground.
Power supply circuit is integrated using the power MOS pipe Switching Power Supply without auxiliary winding in the invention, eliminates transformation
The winding all the way of device, enormously simplifies peripheral circuit, reduces production cost, be with a wide range of applications.
Detailed description of the invention
Fig. 1 is that the auxiliary winding mode of the prior art realizes that the circuit structure of the integrated power supply circuit of isolation type switching power supply shows
It is intended to.
Fig. 2 is that the power MOS pipe Switching Power Supply of no auxiliary winding of the invention integrates the circuit structure signal of power supply circuit
Figure.
Fig. 3 is that the power MOS pipe Switching Power Supply of no auxiliary winding of the invention integrates another embodiment party of power supply circuit
The electrical block diagram of formula.
Fig. 4 is that the power MOS pipe Switching Power Supply of no auxiliary winding of the invention integrates showing for the control waveform of power supply circuit
It is intended to.
Specific embodiment
It is further to carry out combined with specific embodiments below in order to more clearly describe technology contents of the invention
Description.
The power MOS pipe Switching Power Supply without auxiliary winding integrates power supply circuit, which is characterized in that the circuit includes
High-voltage rectifying filter circuit module, transformer and integrated circuit modules, the output end of the high-voltage rectifying filter circuit module
It is connected with the different name end of the primary side winding of the transformer, the primary side of the integrated circuit modules and the transformer
The Same Name of Ends of winding is connected.
In a kind of preferable embodiment, the high-voltage rectifying filter circuit module includes high-voltage rectifying filter circuit
And AC power source, the output end of the AC power source are connected with the input terminal of the high-voltage rectifying filter circuit.
In a kind of preferable embodiment, the transformer is isolated transformer, the isolated transformer
It further include secondary side rectifier diode, the vice-side winding of the anode and the isolated transformer of the secondary side rectifier diode
Same Name of Ends be connected, the cathode of the secondary side rectifier diode is connected with output loading.
In a kind of preferable embodiment, the integrated circuit modules include charging time controller, tri-state driver
Device, pulse width modulator, MOS power tube, parasitic capacitance, VCC rectifier diode and MOS auxiliary switch, the circuit also wrap
Include energy storage filter capacitor and primary current sampling resistor, the first end of the charging time controller respectively with the VCC
The cathode of rectifier diode is connected with the first end of the energy storage filter capacitor, and the second of the charging time controller
End is connected with the first end of the pulse width modulator, and the third end of the charging time controller and the tri-state are driven
The first end of dynamic device is connected, the second end of the three-state driver respectively with the grid of the MOS power tube and described
The first end of parasitic capacitance be connected, the drain electrode of the MOS power tube is of the same name with the primary side winding of the transformer
End is connected, and the source electrode of the MOS power tube rectifies two poles with the second end of the parasitic capacitance, the VCC respectively
The anode of pipe is connected with the drain electrode of the MOS auxiliary switch, the second end of the pulse width modulator and the MOS
The grid of auxiliary switch is connected, and the of the source electrode of the MOS auxiliary switch and the primary current sampling resistor
One end is connected, the second end ground connection of the primary current sampling resistor, the second end ground connection of the energy storage filter capacitor.
In a kind of preferable embodiment, the integrated circuit modules include charging time controller, driver, arteries and veins
Wide modulator, MOS power tube, first diode, bootstrap capacitor, VCC rectifier diode and MOS auxiliary switch, the electricity
Road further includes energy storage filter capacitor and primary current sampling resistor, the first end of the charging time controller respectively with it is described
The cathode of VCC rectifier diode, the first end of the energy storage filter capacitor is connected with the anode of the first diode
It connects, the second end of the charging time controller is connected with the first end of the pulse width modulator, when the described charging
Between the third end of controller be connected with the first end of the driver, the third end of the driver and the MOS
The grid of power tube is connected, and the drain electrode of the MOS power tube is connected with the Same Name of Ends of the primary side winding of the transformer
Connect, the source electrode of the MOS power tube respectively with the 4th end of the driver, the second end of the bootstrap capacitor, institute
The anode for the VCC rectifier diode stated is connected with the drain electrode of the MOS auxiliary switch, and the second of the bootstrap capacitor
End is connected with the cathode of the second end of the driver and the first diode respectively, the pulse width modulator
Second end is connected with the grid of the MOS auxiliary switch, the source electrode of the MOS auxiliary switch and the primary side
The first end of current sampling resistor is connected, the second end ground connection of the primary current sampling resistor, the energy storage filtering
The second end of capacitor is grounded.
In a kind of specific embodiment, as shown in Fig. 2, wherein the mark and its effect of each device or module are as follows:
AC: AC power source；
High-voltage rectifying filter module: AC power source is rectified into DC high-voltage；
VBUCK: high-voltage rectifying exports direct current of voltage regulation；
L1: transformer primary winding is used to give transformer energy storage；
L2: transformer secondary winding, for the energy of transmission transformer primary side storage；
DOUT: secondary side rectifier diode；
Output loading: by power supply unit or test equipment.
VCC: chip interior power supply；
CS: the voltage on primary current sampling resistor；
Ip: primary side winding electric current；
M0:MOS type high-voltage switch gear power tube；
Parasitic capacitance of the Cgs:MOS type high-voltage switch gear power tube grid to source electrode；
VGATE:MOS type high-voltage switch gear power tube grid voltage；
M1:MOS auxiliary switch；
DVCC:VCC rectifier diode；
CVCC: integrated circuit power supply, the energy storage filter capacitor of VCC；
RCS: primary current is converted voltage CS by primary current sampling resistor；
Output loading: by power supply unit or test equipment；
VCC power-on time controller: control CVCC charging delay time；
Pulse width modulator: pulse-width signal is generated；
Three-state driver: generating driving signal, and there are three types of state, low level state, high level state, high impedance status.
In one embodiment, which includes high-voltage rectifying filter circuit module, isolated transformer and integrates
Circuit module.The high-voltage rectifying filter circuit module includes AC input and DC output end, and the alternating current is defeated
Enter end connection AC power source.
The DC output end connects transformer primary winding different name end, and Same Name of Ends connects MOS type high-voltage switch gear power
The Same Name of Ends of pipe, the transformer secondary winding passes through output rectifier diode DOUT connection output loading.
The integrated circuit modules include MOS type high-voltage switch gear power tube M0, auxiliary switch M1, VCC rectifier diode
DVCC, pulse width modulator, VCC charging time controller.Wherein, the grid connection tri-state of MOS type high-voltage switch gear power tube M0 is driven
Dynamic device, the source electrode of M0 connect the anode of the VCC rectifier diode DVCC, the cathode connection energy storage filter capacitor CVCC's of DVCC
One end, the other end ground connection of CVCC, the source electrode of M0 are also connected with the drain electrode of the auxiliary switch M1, and the grid of M1 connects pulsewidth tune
Device processed, source electrode connect sampling resistor RCS, the other end ground connection of RCS.
The input terminal of VCC power-on time adjuster connects pulse width modulator, another input terminal connects VCC, output end
Connect three-state driver.
The working principle of the embodiment are as follows: refering to Fig. 4, when normal work, pulse width modulator controls M0 unlatching synchronous with M1,
The end DRN is about 0 potential point.VCS voltage linear rise, when CS voltage reaches internal preset value, pulse width modulator controls M1 pipe
Shutdown, simultaneity factor calculate the required VCC charging time according to VCC voltage, simultaneously switch off M0 grid voltage, at this time the grid of M0
Extremely high impedance status.Since there are parasitic capacitance Cgs for M0 grid, the end DRN will arrive about VCC voltage by bootstrapping, so the grid of M0
Pole tension arrives about VCC+VGATE by bootstrapping, therefore M0 pipe will continue on state.The charging of CVCC is started at this time, VCS
Voltage will continue to linear rise.
VCC voltage signal is sampled inside VCC power-on time adjuster, is calculated after inter-process required
In the VCC charging time, after this charging time, VCC time controller control three-state driver extracts outward from the grid of M0
Pulse current rapidly switches off M0, reaches and is delayed to turn off purpose, and the power supply of integrated circuit terminates in current period.Vice-side winding
Afterflow starts.
In another specific embodiment, as shown in figure 3, wherein the mark of each device or module and its effect be such as
Under:
AC: AC power source；
High-voltage rectifying filter module: AC power source is rectified into DC high-voltage；
VBUCK: high-voltage rectifying exports direct current of voltage regulation；
L1: transformer primary winding is used to give transformer energy storage；
L2: transformer secondary winding, for the energy of transmission transformer primary side storage；
DOUT: secondary side rectifier diode；
Output loading: by power supply unit or test equipment.
VCC: chip interior power supply；
VBST: internal bootstrap power supply；
CBST: bootstrap capacitor；
CS: the voltage on primary current sampling resistor；
Ip: primary side winding electric current；
M0:MOS type high-voltage switch gear power tube；
M1:MOS auxiliary switch；
DVCC:VCC rectifier diode；
CVCC: integrated circuit power supply, the energy storage filter capacitor of VCC；
RCS: primary current is converted voltage CS by primary current sampling resistor；
Output loading: by power supply unit or test equipment；
VCC power-on time controller: control CVCC charging delay time；
Pulse width modulator: pulse-width signal is generated；
In one embodiment, which includes high-voltage rectifying filter circuit module, isolated transformer and integrates
Circuit module.The high-voltage rectifying filter circuit module includes AC input and DC output end, and the alternating current is defeated
Enter end connection AC power source.
The DC output end connects transformer primary winding different name end, and Same Name of Ends connects MOS type high-voltage switch gear power
The Same Name of Ends of pipe, the transformer secondary winding passes through output rectifier diode DOUT connection output loading.
The integrated circuit modules include MOS type high-voltage switch gear power tube M0, auxiliary switch M1, VCC rectifier diode
DVCC, pulse width modulator, VCC charging time controller, driver.
Wherein, the grid of MOS type high-voltage switch gear power tube M0 connects driver, and the source electrode of M0 connects the VCC rectification two
The anode of pole pipe DVCC, one end of the cathode connection energy storage filter capacitor CVCC of DVCC, the other end ground connection of CVCC, the source electrode of M0
It is also connected with the drain electrode of the auxiliary switch M1, the source electrode of M1 connects sampling resistor RCS, the other end ground connection of RCS.
The ground terminal of VCC power-on time adjuster is connected to the source electrode of M0.Input terminal connects pulse width modulator, another input
End connection VCC, output end connect driver, the source electrode of the ground terminal connection M0 of the driver.The grid of output end connection M0.
The grid of the output end connection auxiliary switch M1 of the pulse width modulator, while connecting the VCC charging time and controlling
Device.The one end capacitor C is connected to the source electrode of M0, and the other end connects VCC
The working principle of the embodiment are as follows: refering to Fig. 4, when normal work, pulse width modulator controls M0 unlatching synchronous with M1.
The end DRN is about 0 potential point, and VBST voltage is approximately equal to VCC, VCS voltage linear rise, when CS voltage reaches internal preset value,
Pulse width modulator controls the shutdown of M1 pipe, and M0 continues to keep it turning on, and since the voltage on capacitor C is about VCC, the end DRN will be booted
To VCC, then VBST is about 2 times of VCC, therefore the grid voltage of M0 is about VGATE+VCC, is started at this time to the charging of CVCC.
VCS voltage will continue to linear rise.
VCC voltage signal is sampled inside VCC power-on time adjuster, calculates required VCC after treatment
In the charging time, after this charging time, VCC time controller controls driver and extracts pulse electricity outward from the grid of M0
Stream, rapidly switches off M0, the power supply of integrated circuit terminates in current period.Vice-side winding afterflow starts.
Power MOS pipe Switching Power Supply without auxiliary winding of the invention integrates in the technical solution of power supply circuit, wherein institute
Including each function device and modular device can correspond to actual particular hardware circuit structure, therefore these modules and
Unit is merely with hardware circuit it is achieved that not needing auxiliary can be realized accordingly automatically with specifically controlling software
Function.
Using in the invention, supplied using the power MOS pipe Switching Power Supply without auxiliary winding in the invention is integrated
Circuit eliminates the winding all the way of transformer, enormously simplifies peripheral circuit, reduce production cost, has and widely answers
Use range.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (3)
1. a kind of power MOS pipe Switching Power Supply of no auxiliary winding integrates power supply circuit, which is characterized in that the circuit includes
High-voltage rectifying filter circuit module, transformer and integrated circuit modules, the output end of the high-voltage rectifying filter circuit module
It is connected with the different name end of the primary side winding of the transformer, the primary side of the integrated circuit modules and the transformer
The Same Name of Ends of winding is connected；
The integrated circuit modules include charging time controller, three-state driver, pulse width modulator, MOS power tube, parasitism
Capacitor, VCC rectifier diode and MOS auxiliary switch, the circuit further include energy storage filter capacitor and primary current sampling
Resistance, the first end of the charging time controller respectively with the cathode of the VCC rectifier diode and the energy storage
The first end of filter capacitor is connected, the first end of the second end of the charging time controller and the pulse width modulator
It is connected, the third end of the charging time controller is connected with the first end of the three-state driver, and described three
The second end of state driver is connected with the first end of the grid of the MOS power tube and the parasitic capacitance respectively, institute
The drain electrode for the MOS power tube stated is connected with the Same Name of Ends of the primary side winding of the transformer, the source of the MOS power tube
The pole anode and the MOS auxiliary switch with the second end of the parasitic capacitance, the VCC rectifier diode respectively
Drain electrode be connected, the second end of the pulse width modulator is connected with the grid of the MOS auxiliary switch, described
The source electrode of MOS auxiliary switch is connected with the first end of the primary current sampling resistor, the primary current sampling
The second end of resistance is grounded, the second end ground connection of the energy storage filter capacitor；
Or
The integrated circuit modules include charging time controller, driver, pulse width modulator, MOS power tube, the one or two pole
Pipe, bootstrap capacitor, VCC rectifier diode and MOS auxiliary switch, the circuit further include energy storage filter capacitor and primary side electricity
Flow sampling resistor, the first end of the charging time controller respectively with the cathode of the VCC rectifier diode, described
The first end of energy storage filter capacitor is connected with the anode of the first diode, and the second of the charging time controller
End is connected with the first end of the pulse width modulator, the third end of the charging time controller and the driver
First end be connected, the third end of the driver is connected with the grid of the MOS power tube, the MOS function
The drain electrode of rate pipe is connected with the Same Name of Ends of the primary side winding of the transformer, the source electrode of the MOS power tube respectively with
4th end of the driver, the second end of the bootstrap capacitor, the anode of the VCC rectifier diode and described
The drain electrode of MOS auxiliary switch is connected, the second end of the bootstrap capacitor respectively with the second end of the driver and
The cathode of the first diode is connected, the second end of the pulse width modulator and the MOS auxiliary switch
Grid is connected, and the source electrode of the MOS auxiliary switch is connected with the first end of the primary current sampling resistor, institute
The second end for the primary current sampling resistor stated is grounded, the second end ground connection of the energy storage filter capacitor.
2. the power MOS pipe Switching Power Supply of no auxiliary winding according to claim 1 integrates power supply circuit, feature exists
In, the high-voltage rectifying filter circuit module include high-voltage rectifying filter circuit and AC power source, the AC power source
Output end is connected with the input terminal of the high-voltage rectifying filter circuit.
3. the power MOS pipe Switching Power Supply of no auxiliary winding according to claim 1 integrates power supply circuit, feature exists
In the transformer is isolated transformer, and the isolated transformer further includes secondary side rectifier diode, the pair
The anode of side rectifier diode is connected with the Same Name of Ends of the vice-side winding of the isolated transformer, the secondary side rectification
The cathode of diode is connected with output loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140051.8A CN106602883B (en) | 2017-03-10 | 2017-03-10 | The power MOS pipe Switching Power Supply of no auxiliary winding integrates power supply circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140051.8A CN106602883B (en) | 2017-03-10 | 2017-03-10 | The power MOS pipe Switching Power Supply of no auxiliary winding integrates power supply circuit |
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| Publication Number | Publication Date |
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| CN106602883A CN106602883A (en) | 2017-04-26 |
| CN106602883B true CN106602883B (en) | 2019-03-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612107A (en) * | 2017-08-23 | 2018-01-19 | 成都芯源***有限公司 | Power supply voltage generating circuit and integrated circuit thereof |
| CN107733255B (en) * | 2017-10-20 | 2024-05-28 | 福建省福芯电子科技有限公司 | Double-winding power supply circuit |
| CN114710038A (en) * | 2022-05-30 | 2022-07-05 | 七四九(南京)电子研究院有限公司 | Power supply circuit applied to module power source primary side bootstrap drive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208534B1 (en) * | 2000-04-04 | 2001-03-27 | Switch Power, Inc. | Generating bias voltage in a voltage converter |
| JP2009112083A (en) * | 2007-10-29 | 2009-05-21 | Calsonic Kansei Corp | Auxiliary power supply circuit |
| CN102355134A (en) * | 2011-09-23 | 2012-02-15 | 成都芯源***有限公司 | Switch conversion circuit and conversion method |
| CN102820765A (en) * | 2012-09-14 | 2012-12-12 | 矽力杰半导体技术(杭州)有限公司 | Bias voltage generation circuit and switch power supply with bias voltage generation circuit |
| CN103051196A (en) * | 2013-01-16 | 2013-04-17 | 绍兴光大芯业微电子有限公司 | Isolation type power supply circuit structure for supplying power to integrated circuit without additional winding |
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2017
- 2017-03-10 CN CN201710140051.8A patent/CN106602883B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208534B1 (en) * | 2000-04-04 | 2001-03-27 | Switch Power, Inc. | Generating bias voltage in a voltage converter |
| JP2009112083A (en) * | 2007-10-29 | 2009-05-21 | Calsonic Kansei Corp | Auxiliary power supply circuit |
| CN102355134A (en) * | 2011-09-23 | 2012-02-15 | 成都芯源***有限公司 | Switch conversion circuit and conversion method |
| CN102820765A (en) * | 2012-09-14 | 2012-12-12 | 矽力杰半导体技术(杭州)有限公司 | Bias voltage generation circuit and switch power supply with bias voltage generation circuit |
| CN103051196A (en) * | 2013-01-16 | 2013-04-17 | 绍兴光大芯业微电子有限公司 | Isolation type power supply circuit structure for supplying power to integrated circuit without additional winding |
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| CN106602883A (en) | 2017-04-26 |
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