CN101917129B - Multiplexing synchronization voltage adapter - Google Patents
Multiplexing synchronization voltage adapter Download PDFInfo
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- CN101917129B CN101917129B CN 201010253218 CN201010253218A CN101917129B CN 101917129 B CN101917129 B CN 101917129B CN 201010253218 CN201010253218 CN 201010253218 CN 201010253218 A CN201010253218 A CN 201010253218A CN 101917129 B CN101917129 B CN 101917129B
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Abstract
The invention discloses a multiplexing synchronization voltage adapter, which is characterized in that: a power switch (1) and a power indicator lamp (3) are arranged on an upper shell panel (25); a circuit board (21) is fixed between an upper shell (13) and a lower shell (24) and is connected with a USB5V direct current output socket (4), a USB+5V direct current indicator lamp (5), switch power output sockets and switch power output indicator lamps which are arranged on the upper shell panel (25); the upper shell (13) and the lower shell (24) is connected with a power plug (31) through a power slot (12) and a power line (2); an electronic component (15) is arranged on the circuit board (21); each group of switch power output sockets and switch power output indicator lamps are arranged in the corresponding switch power chamber in a radiating fin screening cover (19); and each switch power chamber is respectively provided with a switch power transformer (20). The multiplexing synchronization voltage adapter has the advantages of convenient use, high utilization ratio, capacities of reducing electronic rubbish and saving electricity, wide application range, safety and reliability.
Description
Technical field:
The present invention relates to a kind of adapter, relate in particular to a kind of multiplexing synchronization voltage adapter.
Background technology:
Power supply adaptor and direct-current switch power supply have following weak point at present:
1, the voltage of current D.C. regulated power supply or adapter is fixed, even the voltage and current that some energy regulation voltages also will contrast electric equipment is manually regulated, also suitable plugs and sockets and line will be arranged, and also will note positive-negative polarity simultaneously, very trouble.
2, at present the voltage of D.C. regulated power supply or adapter can not change with the electric equipment required voltage consistent, electric equipment can not control D.C. regulated power supply or adapter startup, close, dormancy.
3, a present electric equipment is joined an adapter, versatility is poor, can not be many with a band, often carry, use inconvenience.
If the adapter of 4 electric equipments damages or loses, do not know electric current and voltage yet, so be difficult to mix identical adapter and line, might cause this electric equipment to be scrapped.
5, D.C. regulated power supply or adapter plug power supply in the bringing onto load situation sometimes now, produce overshoot current, easily damage electric equipment.
6, be difficult to unified plugs and sockets and line.
7, the power supply adaptor output voltage can not change and need debugging or calibration, and high to the electronic component required precision, electronic component cost and production cost are high.
8, D.C. regulated power supply or adapter and electric equipment exposed metal have picotement at present.
Summary of the invention:
The object of the invention is to overcome the deficiency of above-mentioned prior art and provide a kind of independent multiplexing synchronization voltage adapter and socket to be integrated, easy to use, utilance is high, reduce electronic waste, electrical energy saving, applied widely, safe and reliable multiplexing synchronization voltage adapter.
Purpose of the present invention can reach by following measure: a kind of multiplexing synchronization voltage adapter, it has upper casing, lower casing, upper casing is provided with the upper casing panel, it is characterized in that the upper casing panel is provided with mains switch, power supply indicator, USB+5V direct current accessory power outlet, USB+5V direct current output indicator, at least one group of Switching Power Supply accessory power outlet and Switching Power Supply output indicator, be fixed with wiring board between upper casing and the lower casing, be equipped with the power supply wire casing on upper casing and the lower casing, the power supply wire casing connects attaching plug by power line, wiring board is provided with electronic devices and components, the fin radome, it is indoor that every group of Switching Power Supply accessory power outlet and Switching Power Supply output indicator all are located at the Switching Power Supply of the correspondence in the fin radome, the indoor switching mode power supply transformer that is equipped with of each Switching Power Supply connects USB5V direct current accessory power outlet on the wiring board, USB+5V direct current output indicator, Switching Power Supply accessory power outlet and Switching Power Supply output indicator.
In order further to realize purpose of the present invention, described wiring board is provided with current rectifying and wave filtering circuit, current rectifying and wave filtering circuit connects respectively dc auxiliary supply and at least one group of switching power circuit, dc auxiliary supply connects respectively the constant-current source in USB+5V accessory power outlet 4 and each the group Switching Power Supply, constant-current source connecting valve power output socket, each power supply connects each power supply indicator circuit, every group of switching power circuit output connecting valve power output socket, the voltage comparison amplifier, the Switching Power Supply accessory power outlet connects the voltage comparison amplifier, voltage comparison amplifier feedback link switching power circuit, the output of Switching Power Supply accessory power outlet connects 4 line direct current band plug cables, 4 line direct current band plug cable connecting circuit apparatus sockets, electric equipment socket connecting circuit apparatus of load, the electric equipment load connects power control circuit, power control circuit connects pressurizer, pressurizer connecting circuit apparatus socket.
In order further to realize purpose of the present invention, described upper casing panel is provided with three groups of Switching Power Supply accessory power outlets and Switching Power Supply output indicator, it is Switching Power Supply A accessory power outlet, Switching Power Supply A output indicator, Switching Power Supply B accessory power outlet, Switching Power Supply B output indicator, Switching Power Supply C accessory power outlet and Switching Power Supply C output indicator, be divided into Switching Power Supply A chamber in the fin radome, Switching Power Supply B chamber and Switching Power Supply C chamber, it is indoor that Switching Power Supply A accessory power outlet and Switching Power Supply A output indicator are located at Switching Power Supply A, it is indoor that Switching Power Supply B accessory power outlet and Switching Power Supply B output indicator are located at Switching Power Supply B, and it is indoor that Switching Power Supply C accessory power outlet and Switching Power Supply C output indicator are located at Switching Power Supply C.
In order further to realize purpose of the present invention, described current rectifying and wave filtering circuit divides four the tunnel, one the road to dc auxiliary supply, three the road distribute to switching power circuit A in addition, switching power circuit B, switching power circuit C, the dc auxiliary supply two-way is exported one the tunnel and is connected the USB+5V accessory power outlet, another road connects the constant-current source A that respectively organizes in the Switching Power Supply, constant-current source B, constant-current source C, distinguish again connecting valve power supply A accessory power outlet, Switching Power Supply B accessory power outlet, Switching Power Supply C accessory power outlet, each power supply connects each power supply indicator circuit, first group of switching power circuit A output connecting valve power supply A accessory power outlet, voltage comparison amplifier A, Switching Power Supply A accessory power outlet connects voltage comparison amplifier A, voltage comparison amplifier A feedback link switching power circuit A, the output of Switching Power Supply A accessory power outlet connects 4 line direct current band plug cables, 4 line direct current band plug cable connecting circuit apparatus socket N1, electric equipment socket N1 connecting circuit apparatus of load N1, electric equipment load N1 connects power control circuit N1, power control circuit N1 connects pressurizer N1, pressurizer N1 connecting circuit apparatus socket N1, second group of switching power circuit B output connecting valve power supply B accessory power outlet, voltage comparison amplifier B, Switching Power Supply B accessory power outlet 8 connects voltage comparison amplifier B, voltage comparison amplifier B feedback link switching power circuit B, the output of Switching Power Supply B accessory power outlet connects 4 line direct current band plug cables, 4 line direct current band plug cable connecting circuit apparatus socket N2, electric equipment socket N2 connecting circuit apparatus of load N2, electric equipment load N2 connects power control circuit N2, power control circuit N2 connects pressurizer N2, pressurizer N2 connecting circuit apparatus socket N2, the 3rd group of switching power circuit C output connecting valve power supply C accessory power outlet, voltage comparison amplifier C, Switching Power Supply C accessory power outlet connects voltage comparison amplifier C, voltage comparison amplifier C feedback link switching power circuit C, the output of Switching Power Supply C accessory power outlet connects 4 line direct current band plug cables, 4 line direct current band plug cable connecting circuit apparatus socket N3, electric equipment socket N3 connecting circuit apparatus of load N3, electric equipment load N3 connects power control circuit N3, power control circuit N3 connects pressurizer N3, pressurizer N3 connecting circuit apparatus socket N3.
In order further to realize purpose of the present invention, described current rectifying and wave filtering circuit is by NTC1, F1, C26, E1, C19, C20, C21, and C17, BD1, C27 form, BD1 negative electrode connection C27 positive pole ,+300V output, BD1 anode, C27 negative pole connect thermally.
In order further to realize purpose of the present invention, described dc auxiliary supply is by R29, R31, R30, R33, R32, C28, C22, C18, D12, D14, DW1, Q7, Q8, the primary switch power circuit that T1 forms, the BD1 negative electrode, the anodal R29 that connects of C27, R29 connects the C28 anode, R31, R33, T1-1, the secondary switch power circuit connects the D16 anode by T1-5, it is anodal that the D16 negative electrode utmost point connects C29, R34, it is anodal that R34 connects C24, R36, + 5V output, the JP1-1UBS output, T1-6, C29 negative pole and C24 minus earth, R36 connects the DS2 anode, the DS2 negative electrode, JP1-4 ground connection, T1-7 connects the D13 anode, C23, C23 connects R35, the D13 negative electrode connects R35, C25 is anodal, + 30V output, T1-8, the C25 minus earth.
In order further to realize purpose of the present invention, described switch power supply route R42, L1, R4, R5, R6, R7, R24, R25, R26, R27, R28, C5, C6, C8, C9, C30, C31, D3, D4, D5, D6, D7, D8, D9, Q3, Q4, Q5, Q6, T2 forms discrete frequency modulation primary switch power circuit, power supply+300V connects R42, R42 connects L1, it is anodal that L1 connects C30, C31, R24, R27, C8, T2-1, the secondary switch power circuit connects the D10 anode by T2-7, C11, C11 connects R9, the D10 negative electrode connects R9, C13 is anodal, L2, it is anodal that L2 connects C14, R13, the D15 anode, D11 anode voltage stabilizing output.
In order further to realize purpose of the present invention, described constant-current source connects R14, R15 by input+30V, and R15 connects R37, DW6 negative electrode, and R37 connects Q9 emitter, Q9 collector electrode connection+30V output, DW6 anodic bonding Q9 base stage, R38, R38 ground connection.
In order further to realize purpose of the present invention, described voltage comparison amplifier connects U2A-3, R12 by R13, connect R16, C7 positive pole, R39 by the input of voltage stabilizing fiducial value, R39 connects C15 positive pole, U2A-2, R11, C12, the D15 negative electrode connects U2A-8, R14, C16 is anodal, and U2A-1 connects C3 negative pole, R10, C12, the anodal R11 that connects of C3, R10 connects U1-1, U1-3, U2A-4, R12, C15 negative pole, C7 negative pole, R16 ground connection.
In order further to realize purpose of the present invention, described each power supply indicator circuit connects R17, R23 by this group+5V power supply, R17 connects R18, R19, R20, U2B-5, U2B-6 connects the C4 positive pole, R21, U2B-7 connect R21, R22, R20, and R22 connects the Q2 base stage, and R23 connects the Q2 collector electrode, the Q2 emitter connects the DS1 anode, R19 connects the D11 negative electrode, D11 anodic bonding L2, voltage stabilizing output, R18, C4 negative pole, DS1 minus earth.
The present invention can produce following good effect compared with the prior art:
1, multipath independent direct current output is arranged, simultaneously many electric equipments (such as mobile phone, liquid crystal display, notebook computer, router, modulator, scanner etc., below being referred to as electric equipment) are powered.
2, as long as simple voltage stabilizing circuit is installed on the electric equipment, just can pass through the electric equipment setting voltage, make its output voltage and setting voltage synchronous, so what voltage the present invention electric equipment needs just export which type of voltage, so can be to the direct direct current supply of different electric equipments.What family or office electric equipment that is to say no matter can use this device.
3, electric equipment can carry out remote control, startup to the present invention, closes dormancy and change electric power output voltage.
4, change with electric equipment owing to output voltage of the present invention; and when starting, change, closing with the warm swap power supply, because perfect buffer circuit and protective circuit, so that supply voltage can not be dashed forward is high prominent not low; electric current can overshoot, during use than other Switching Power Supply safety also.Avoid connecting safely that metal chassis has numb inductance to feel when bad.
5, single channel does not add any mechanical switch and electronic switching circuit, just can finish that the present invention is output as 0 volt when connecting without electric equipment, the present invention just has output voltage when having electric equipment to connect.
6, the present invention is reusable, so the electric equipment of newly purchasing or second-hand electric equipment no longer need configuration adapters.Easy to use, utilance is high, reduce electronic waste, electrical energy saving.
7, be easy to unified all DC power supply and plugs and sockets.Behind unified DC power supply and the plugs and sockets, what AC socket and the present invention just can follow a well mapped-out plan is installed together, and realization Multifunctional AC/DC socket is powered to multiple electric equipment.
Description of drawings:
Fig. 1 is surface structure schematic diagram of the present invention;
Fig. 2 is side-looking Split type structure figure of the present invention;
Fig. 3 is that the present invention uses connection diagram;
Fig. 4 is the present invention's electricity theory diagram;
Fig. 5 is circuit master map of the present invention;
Fig. 6 is current rectifying and wave filtering circuit of the present invention and accessory power supply schematic diagram;
Fig. 7 is one group of Switching Power Supply schematic diagram of the present invention;
Fig. 8 is the schematic diagram of electric equipment adjunct circuit of the present invention.
Embodiment: the specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of multiplexing synchronization voltage adapter (referring to Fig. 1, Fig. 2), it has upper casing 13, lower casing 24, upper casing 13 is provided with upper casing panel 25, and upper casing panel 25 is provided with mains switch 1, power supply indicator 3, USB+5V direct current accessory power outlet 4, USB+5V direct current output indicator 5, Switching Power Supply A accessory power outlet 6, Switching Power Supply A output indicator 7, Switching Power Supply B accessory power outlet 8, Switching Power Supply B output indicator 9, Switching Power Supply C accessory power outlet 10 and Switching Power Supply C output indicator 11.Be fixed with wiring board 21 by fixing circuit board base 22, screw pole 14 and wiring board reference column 23 between upper casing 13 and the lower casing 24.Be equipped with power supply wire casing 12 on upper casing 13 and the lower casing 24, power supply wire casing 12 connects attaching plug 31 by power line 2.Wiring board 21 is provided with electronic devices and components 15, fin radome 19, be divided into Switching Power Supply A chamber 16 in the fin radome 19, Switching Power Supply B chamber 17 and Switching Power Supply C chamber 18, connect USB5V direct current accessory power outlet 4 on the wiring board 21, USB+5V direct current output indicator 5, Switching Power Supply A accessory power outlet 6, Switching Power Supply A output indicator 7, Switching Power Supply B accessory power outlet 8, Switching Power Supply B output indicator 9, Switching Power Supply C accessory power outlet 10 and Switching Power Supply C output indicator 11, Switching Power Supply A chamber 16, be equipped with switching mode power supply transformer 20 in Switching Power Supply B chamber 17 and the Switching Power Supply C chamber 18.Switching Power Supply A accessory power outlet 6 and Switching Power Supply A output indicator 7 are located in the Switching Power Supply A chamber 16, Switching Power Supply B accessory power outlet 8 and Switching Power Supply B output indicator 9 are located in the Switching Power Supply B chamber 17, and Switching Power Supply C accessory power outlet 10 and Switching Power Supply C output indicator 11 are located in the Switching Power Supply C chamber 18.
Of the present inventionly use and be connected (referring to Fig. 3), plug 31 inserts civil power among the figure, press mains switch 1, power supply indicator 3 and USB5V indicator light are lighted, and Switching Power Supply output indicator 7,9,11 is glittering, mobile phone 27 usefulness lines directly insert USB5V direct current accessory power outlet 4 and charge, Switching Power Supply accessory power outlet 6 among the figure, 8,10 directly access electric equipments (such as notebook computer 28 with connecting plug 26, scanner 29, router three 0 family expenses such as grade and office electrical equipment), Switching Power Supply output indicator 7 after the electric equipment access, 9,11 by glittering become long bright.
Circuit block diagram 4 of the present invention, shown in the figure ~ 220V is through current rectifying and wave filtering circuit 001 minute four tunnel, one the road to dc auxiliary supply 002, three the road distribute to switching power circuit A101, switching power circuit B201, switching power circuit C301 in addition, dc auxiliary supply 002 two-way is exported one tunnel connection USB+5V accessory power outlet 4, another road connects constant-current source A103, constant-current source B203, the constant-current source C303 that respectively organizes in the Switching Power Supply, distinguishes connecting valve power supply A accessory power outlet 6, Switching Power Supply B accessory power outlet 8, Switching Power Supply C accessory power outlet 10 again.Each power supply connects each power supply indicator circuit 005.The figure lower middle portion is three groups of identical switching power circuits, first group of switching power circuit A101 output connecting valve power supply A accessory power outlet 6, voltage comparison amplifier A102, Switching Power Supply A accessory power outlet 6 connects voltage comparison amplifier A102, voltage comparison amplifier A102 feedback link switching power circuit A101,6 outputs of Switching Power Supply A accessory power outlet connect 4 line direct current band plug cables 004,4 line direct current band plug cables, 004 connecting circuit apparatus socket N1105, electric equipment socket N1105 connecting circuit apparatus of load N1107, electric equipment load N1107 connects power control circuit N1106, power control circuit N1106 connects pressurizer N1104, pressurizer N1104 connecting circuit apparatus socket N1105.Second group and the 3rd group of switching power circuit connected mode are the same.Second group of switching power circuit B201 output connecting valve power supply B accessory power outlet 8, voltage comparison amplifier B202, Switching Power Supply B accessory power outlet 8 connects voltage comparison amplifier B202, voltage comparison amplifier B202 feedback link switching power circuit B201,8 outputs of Switching Power Supply B accessory power outlet connect 4 line direct current band plug cables 004,4 line direct current band plug cables, 004 connecting circuit apparatus socket N2205, electric equipment socket N2205 connecting circuit apparatus of load N2207, electric equipment load N2207 connects power control circuit N2206, power control circuit N2206 connects pressurizer N2204, pressurizer N2204 connecting circuit apparatus socket N2205.The 3rd group of switching power circuit C301 output connecting valve power supply C accessory power outlet 10, voltage comparison amplifier C302, Switching Power Supply C accessory power outlet 10 connects voltage comparison amplifier C302, voltage comparison amplifier C302 feedback link switching power circuit C301,10 outputs of Switching Power Supply C accessory power outlet connect 4 line direct current band plug cables 004,4 line direct current band plug cables, 004 connecting circuit apparatus socket N3305, electric equipment socket N3305 connecting circuit apparatus of load N3307, electric equipment load N3307 connects power control circuit N3306, power control circuit N3306 connects pressurizer N3304, pressurizer N3304 connecting circuit apparatus socket N3305.
The detailed circuit schematic diagram is referring to Fig. 5,6,7,8:
Main circuit Fig. 5 comprises current rectifying and wave filtering circuit and accessory power supply 01, Switching Power Supply A 011, B 021, C 031, electric equipment N1012, N2022, N3032.Current rectifying and wave filtering circuit and accessory power supply 01 have city power supply input ~ 220V, ~ 220V, FG, output have one group of high voltage direct current+300V of two groups of power supplys, thermally with one group of low pressure+5V ,+30V, connecting valve power supply A 011 input, Switching Power Supply A 011 have successively voltage stabilizing output ,+30, the input of voltage stabilizing fiducial value, respectively connecting circuit equipment N1012 the voltage stabilizing input ,+30V, the output of voltage stabilizing fiducial value.Second group and the 3rd group of switching circuit connected mode are the same.
Current rectifying and wave filtering circuit of the present invention and accessory power supply schematic diagram (referring to Fig. 6) are described as follows by the circuit square frame:
Current rectifying and wave filtering circuit 001 is by NTC1, F1, C26, E1, C19, C20, C21, and C17, BD1, C27 form.This component units is common current rectifying and wave filtering circuit commonly used.BD1 negative electrode connection C27 positive pole ,+300V output, BD1 anode, C27 negative pole connect thermally.
The primary switch power circuit that dc auxiliary supply 002 is comprised of R29, R31, R30, R33, R32, C28, C22, C18, D12, D14, DW1, Q7, Q8, T1, BD1 negative electrode, anodal R29, the R29 of connecting of C27 connect C28 anode, R31, R33, T1-1.The secondary switch power circuit connects the D16 anode by T1-5, the D16 negative electrode utmost point connects C29 positive pole, R34, R34 connect C24 positive pole, R36 ,+5V output, JP1-1UBS output, T1-6, C29 negative pole and C24 minus earth, R36 connects the DS2 anode, DS2 negative electrode, JP1-4 ground connection, and T1-7 connects D13 anode, C23, C23 connect R35, D13 negative electrode connect R35, C25 anodal ,+the 30V output, T1-8, C25 minus earth.
USB+5V accessory power outlet 4 is by JP1-1 connection+5V, JP1-4 ground connection.
One group of Switching Power Supply schematic diagram of the present invention (seeing Fig. 7) is described as follows by the circuit square frame:
Switching power circuit A 101 by R42, L1, R4, R5, R6,, R7, R24, R25, R26, R27, R28, C5, C6, C8, C9, C30, C31, D3, D4, D5, D6, D7, D8, D9, Q3, Q4, Q5, Q6, T2 form discrete frequency modulation primary switch power circuit, power supply+300V connects R42, R42 and connects L1, L1 and connect C30 positive pole, C31, R24, R27, C8, T2-1.The secondary switch power circuit connects D10 anode, C11 by T2-7, and C11 connects R9, and the D10 negative electrode connects R9, C13 positive pole, L2, and L2 connects C14 positive pole, R13, D15 anode, D11 anode voltage stabilizing output.
Constant-current source A 103 connects R14, R15 by input+30V, and R15 connects R37, DW6 negative electrode, and R37 connects Q9 emitter, Q9 collector electrode connection+30V output, DW6 anodic bonding Q9 base stage, R38, R38 ground connection.
Voltage comparison amplifier A 102 connects U2A-3, R12 by R13, connect R16, C7 positive pole, R39 by the input of voltage stabilizing fiducial value, R39 connects C15 positive pole, U2A-2, R11, C12, the D15 negative electrode connects U2A-8, R14, C16 is anodal, U2A-1 connects C3 negative pole, R10, C12, the anodal R11 that connects of C3, R10 connects U1-1, U1-3, U2A-4, R12, C15 negative pole, C7 negative pole, R16 ground connection.
Each power supply indicator circuit 005 connects R17, R23 by this group+5V power supply, R17 connects R18, R19, R20, U2B-5, U2B-6 connects the C4 positive pole, R21, U2B-7 connect R21, R22, R20, R22 connects the Q2 base stage, R23 connects the Q2 collector electrode, and the Q2 emitter connects the DS1 anode, and R19 connects the D11 negative electrode, D11 anodic bonding L2, voltage stabilizing output, R18, C4 negative pole, DS1 minus earth.
The additional circuit theory diagrams (seeing Fig. 8) of electric equipment of the present invention are described as follows by the circuit square frame:
Power control circuit N1106 connects DW4 negative electrode, P1 power supply by the voltage stabilizing input; DW4 anodic bonding D17 anode; the D17 negative electrode connects R2, R3, D18 negative electrode; R2 connects Q1 base stage, C34; D18 anodic bonding P3 protects, starts, closes; P4 conversion, dormancy connect R40, and R40 connects Q10 base stage, C33.
Pressurizer N1104 connects C2 anode, R1 by+30V, the output of voltage stabilizing fiducial value connects C1 positive pole, R1, DW2 negative electrode, DW3 negative electrode, Q1 collector electrode, DW3 anodic bonding Q10 collector electrode, C1 negative pole, C2 negative pole, DW2 anode, Q10 emitter, Q1 emitter, C33, C34, R3, P2 ground connection.
Circuit working principle of the present invention:
Shown in Figure 6: ~ 220V obtains direct current 300V after mains switch S1, insurance F1, buffer resistance NTC1, de-noising filter, bridge rectifier BD1 and C27 filtering, to each way switch power circuit power supply.One the tunnel consists of self-excited oscillation circuit through current limliting R29, filtering C28 for accessory power supply centered by Q8, T1, secondary two groups of coils produce two-way voltage through D13, D16 rectification, C29, C24, C25 filtering output+5V and+30V.During accessory power supply work, DS2 is luminous through R36 current limliting light-emitting diode.This circuit can replace with other kind switching power circuit or the above charger circuit of mobile phone 600mA.Just under the prerequisite of reservations+5V, increase by one group+30V coil and current rectifying and wave filtering circuit, to each organize Switching Power Supply provide reference voltage required+30V voltage.
Shown in Figure 7: the output of current rectifying and wave filtering circuit and accessory power supply+5V ,+30V, ,+300V, thermally, wherein and thermally isolate, + 300V sends into auto-excitation type frequency modulation switch power source circuit through little resistance high-power resistance R42 secondary limit start surge current behind L1, C31, the C30 secondary filtering.The primary circuit of this circuit can adopt the auto-excitation type frequency modulation discrete circuit commonly used of industrial PC plate and large-scale console computer board, and sort circuit power and other parameters meet this matching requirements.Also can select integrated circuit as switching power circuit, but there is not special integrated circuit for this circuit at present, want prudent so select integrated circuit, integrated circuit itself needs certain voltage to work, because this circuit is that output voltage stabilizing value is variable with other switch voltage-stabilizing circuit difference, so can not burning voltage be provided and need to provide voltage by means of accessory power supply to this integrated circuit, voltage own just produces duplicate supply in integrated circuit in addition thus, easily burn integrated circuit and switching tube when this dual power supply is inharmonious, thus must with this circuit+300V starting resistance reconfiguration can control the accessory power supply ON/OFF and power to integrated circuit.Integrated circuit adopts PWM mode thereby output voltage amplitude to be restricted mostly now, and not too applicable circuit of the present invention is so should adopt the modulating frequency and width switching power circuit.Secondary circuit T2-8 ground connection, T2-7 output ripple voltage provides voltage stabilizing output through D10 rectification, C13, L2, C14 filtering to electric equipment.
The voltage comparison amplifier is emphasis of the present invention, it is by operational amplifier LM358 (among the figure shown in the U2A), also can be with the operational amplifier of other models, usually two inputs of voltage comparison amplifier, one end is reference voltage, and the other end is sampling voltage.The present invention then is installed in the reference voltage circuit of voltage comparison amplifier on the electric equipment and connects voltage comparison amplifier reference voltage input with wire, and other circuit is constant.Thereby realize that fixed voltage value of electric equipment setting just can obtain the operating voltage of this fixed voltage value.Operation principle is as follows: exchange negative circnit NOT although operational amplifier U2A has, but its gain is still larger, with respect to limited output voltage V o, input voltage V3-V2 can ignore (V3 approximates V2), while sample resistance R13＜＜R12, adjust output supply voltage with R13 consistent with reference voltage, therefore the voltage stabilizing output voltage values is substantially equal with voltage stabilizing benchmark input voltage value, fully can with accessory power supply+30V voltage sets up reference voltage at electric equipment, makes reference voltage equal the voltage stabilizing output voltage.Reference voltage guarantees after reference voltage is elevated to certain value gradually from zero stable through R39, C7, C15 filtering, less on the reference voltage impact when loose contact and interference, when serious loose contact, output voltage slow decreasing and rise, but will not overvoltage and impact, the U2A-2 inverting input is once set up reference voltage V 2, the U2A-3 normal phase input end is from R13 and R12 input sampling voltage V3, two voltages compare and enlarge, through isolation light idol U1, remove control switch power supply primary circuit by U2-1 output.Sampling V3 power supply also raises when the voltage stabilizing output voltage raises, amplifying output Vo through voltage ratio raises, isolation light idol U1 primary current increases secondary current also along with corresponding increase, cause Q4, Q5 electric current to increase, thereby it is slack-off to make Q6 base bleeder current increase Q6 base current minimizing switching frequency, final voltage stabilizing output voltage reduces, thereby reaches the voltage stabilizing purpose.When the voltage stabilizing output voltage reduces, opposite with top process.+ 30V voltage provides electric energy by R14 current limliting C16 filtering to operational amplifier U2, and diode D15 is that U2 does not work and makes the voltage stabilizing output overvoltage when preventing nothing+30V voltage.C3, R11 are to prevent that U2A from producing low-frequency oscillation for exchanging negative feedback.Because resistance R 16 ground connection reference voltage V 2 are zero, the Switching Power Supply primary circuit is not worked when inputting without reference voltage, and making the voltage stabilizing output voltage also is zero, and resistance R 16 resistances are unsuitable too small.So because the reference voltage excursion needs greatly a constant-current source, this constant-current source is comprised of Q9, R37, DW6, R38.Operational amplifier U2B and around resistance, electric capacity form low-frequency oscillator, make Q2 conduction and cut-off, R23 current limliting, light-emitting diode DS1 glittering.The D11 conducting makes the low-frequency oscillator failure of oscillation when voltage stabilizing output is arranged, and at this moment light-emitting diode DS1 is long bright.T2-10, T2-9 coil shield between primary coil and secondary coil, T2-10 is bear, T2-9 ground connection be eliminate primary and secondary between the common mode disturbances that produces of coupling electric capacity, do not resemble other Switching Power Supply and eliminate interference with safe electric capacity, can exist like that the power supply electric leakage to have numb inductance to feel.
Shown in Figure 8 :+30V voltage is through R1 current limliting, DW2 voltage stabilizing, C1 filtering, and output voltage is made the voltage stabilizing reference voltage to be provided to voltage comparison amplifier U2A-2 by external wire.The DW2 voltage-stabiliser tube can replace the effect meeting better with fixed integrated regulator such as three ends such as series such as 7800 grades.DW4, D17 conducting make also conducting of Q1 during overvoltage, and the voltage stabilizing reference voltage drags down, and the limiting switch power source voltage output voltage is too high.Starting the P3 point is low level, protects and close P3 point electricity to be high level, makes D18 conducting Q1 conducting when high level, and reference voltage drags down, the Switching Power Supply Non voltage output, and D18 cut-off when low level, power supply works.When the conversion, the Q10 conducting made the DW3 that is lower than DW2 voltage stabilizing value play pressure stabilization function when dormancy P4 was high level.As reference voltage, make supply voltage switch drop to a certain value output by the DW3 voltage stabilizing.P1 and P2 make electric equipment load RL1 power supply.
Multi-channel switch power circuit and socket are housed in the present invention, and wherein a part is for sharing circuit, and shared circuit comprises current rectifying and wave filtering circuit, auxiliary direct current source circuit and USB5V output circuit.This device can also add the 220V AC Power supply socket as required, and both unifications become the AC/DC socket.The present invention can have multi-purpose to be based on the traditional voltage regulation way of change, from power supply adaptor, transfer to the voltage stabilizing reference circuit on the electric equipment, provide voltage by accessory power supply, through the electric equipment voltage stabilizing on needed voltage as reference voltage, this reference voltage feedback circuit of the present invention, electric equipment just can be controlled power supply adaptor or DC power output voltage like this, and what voltage electric equipment wants just can obtain what voltage.Thus circuit and the reference voltage that produces easily by phase mutual interference and resonance between external interference, comparison amplifier self-excitation, each independent current source, just in case before main power source does not power up, at this moment accessory power supply send electricity for first certain Switching Power Supply application-specific integrated circuit (ASIC), and possible integrated circuit and switching tube such as burn at the side effect.Be added with anti-interference, weakening, and other circuit for overcoming this all side effect the present invention, also be added with simultaneously protection, startup, close the circuit such as dormancy.The control mode of the on/off time ratio of every group of Switching Power Supply can pulse frequency modulation PFM again can pulse-width modulation PWM, be that to transfer wide be that voltage is from the resonance problem of arbitrary value voltage stabilizing output and every group of same frequency between the 0V-24V with solving Voltage-output.Do not insert when of the present invention at electric equipment, output voltage of the present invention is zero, and this device is with the large electric current of little electric current band in addition, in contingency plugs and sockets and line loose contact situation, output voltage is slowly fluctuation below the voltage stabilizing value, avoids electric equipment is shone into infringement.Traditional switch stabilized voltage power supply or adapter circuit are all used safe electric capacity to eliminate power supply noise and are disturbed, alternating current direct was connected safe electric capacity and was connected output, when not connecting safely, there is numb inductance to feel so form the potential difference output with the earth, it is exactly this reason that the desktop computer metal shell has picotement sometimes, and most of switching power supplies or adapter are that therefore two-pin plug all exists this phenomenon.So replacing safe electric capacity to eliminate power supply noise with inductance disturbs, good isolation effect is arranged.
Claims (8)
1. multiplexing synchronization voltage adapter, it has upper casing (13), lower casing (24), upper casing (13) is provided with upper casing panel (25), it is characterized in that upper casing panel (25) is provided with mains switch (1), power supply indicator (3), USB+5V direct current accessory power outlet (4), USB+5V direct current output indicator (5), at least one group of Switching Power Supply accessory power outlet and Switching Power Supply output indicator, be fixed with wiring board (21) between upper casing (13) and the lower casing (24), be equipped with power supply wire casing (12) on upper casing (13) and the lower casing (24), power supply wire casing (12) connects attaching plug (31) by power line (2), wiring board (21) is provided with electronic devices and components (15), fin radome (19), it is indoor that every group of Switching Power Supply accessory power outlet and Switching Power Supply output indicator all are located at the Switching Power Supply of the correspondence in the fin radome (19), the indoor switching mode power supply transformer (20) that is equipped with of each Switching Power Supply, the upper USB+5V direct current accessory power outlet (4) that connects of wiring board (21), USB+5V direct current output indicator (5), Switching Power Supply accessory power outlet and Switching Power Supply output indicator.
2. a kind of multiplexing synchronization voltage adapter according to claim 1, it is characterized in that described wiring board (21) is provided with current rectifying and wave filtering circuit (001), current rectifying and wave filtering circuit (001) connects respectively dc auxiliary supply (002) and at least one group of switching power circuit, dc auxiliary supply (002) connects respectively the constant-current source in USB+5V direct current accessory power outlet (4) and each the group Switching Power Supply, constant-current source connecting valve power output socket, dc auxiliary supply (002) and respectively organize switching power circuit and all connect each power supply indicator circuit (005), every group of switching power circuit output connecting valve power output socket, the voltage comparison amplifier, the Switching Power Supply accessory power outlet connects the voltage comparison amplifier, voltage comparison amplifier feedback link switching power circuit, the output of Switching Power Supply accessory power outlet connects 4 line direct current band plug cables (004), 4 line direct current band plug cable (004) connecting circuit apparatus sockets, electric equipment socket connecting circuit apparatus of load, the electric equipment load connects power control circuit, power control circuit connects pressurizer, pressurizer connecting circuit apparatus socket.
3. a kind of multiplexing synchronization voltage adapter according to claim 1, it is characterized in that described upper casing panel (25) is provided with three groups of Switching Power Supply accessory power outlets and Switching Power Supply output indicator, it is Switching Power Supply A accessory power outlet (6), Switching Power Supply A output indicator (7), Switching Power Supply B accessory power outlet (8), Switching Power Supply B output indicator (9), Switching Power Supply C accessory power outlet (10) and Switching Power Supply C output indicator (11), be divided into Switching Power Supply A chamber (16) in the fin radome (19), Switching Power Supply B chamber (17) and Switching Power Supply C chamber (18), Switching Power Supply A accessory power outlet (6) and Switching Power Supply A output indicator (7) are located in the Switching Power Supply A chamber (16), Switching Power Supply B accessory power outlet (8) and Switching Power Supply B output indicator (9) are located in the Switching Power Supply B chamber (17), and Switching Power Supply C accessory power outlet (10) and Switching Power Supply C output indicator (11) are located in the Switching Power Supply C chamber (18).
4. a kind of multiplexing synchronization voltage adapter according to claim 2, it is characterized in that described current rectifying and wave filtering circuit (001) Fen Silu, one the road to dc auxiliary supply (002), three the road distribute to switching power circuit A (101) in addition, switching power circuit B (201), switching power circuit C (301), dc auxiliary supply (002) two-way is exported one the tunnel and is connected USB+5V direct current accessory power outlet (4), another road connects the constant-current source A (103) that respectively organizes in the Switching Power Supply, constant-current source B (203), constant-current source C (303), distinguish again connecting valve power supply A accessory power outlet (6), Switching Power Supply B accessory power outlet (8), Switching Power Supply C accessory power outlet (10), dc auxiliary supply (002) and switching power circuit A (101), switching power circuit B (201), switching power circuit C (301) all connects each power supply indicator circuit (005), first group of switching power circuit A (101) exports connecting valve power supply A accessory power outlet (6), voltage comparison amplifier A (102), Switching Power Supply A accessory power outlet (6) connects voltage comparison amplifier A (102), voltage comparison amplifier A (102) feedback link switching power circuit A (101), Switching Power Supply A accessory power outlet (6) output connects 4 line direct current band plug cables (004), 4 line direct current band plug cable (004) connecting circuit apparatus socket N1 (105), electric equipment socket N1 (105) connecting circuit apparatus of load N1 (107), electric equipment load N1 (107) connects power control circuit N1 (106), power control circuit N1 (106) connects pressurizer N1 (104), pressurizer N1 (104) connecting circuit apparatus socket N1 (105), second group of switching power circuit B (201) exports connecting valve power supply B accessory power outlet (8), voltage comparison amplifier B (202), Switching Power Supply B accessory power outlet (8) connects voltage comparison amplifier B (202), voltage comparison amplifier B (202) feedback link switching power circuit B (201), Switching Power Supply B accessory power outlet (8) output connects 4 line direct current band plug cables (004), 4 line direct current band plug cable (004) connecting circuit apparatus socket N2 (205), electric equipment socket N2 (205) connecting circuit apparatus of load N2 (207), electric equipment load N2 (207) connects power control circuit N2 (206), power control circuit N2 (206) connects pressurizer N2 (204), pressurizer N2 (204) connecting circuit apparatus socket N2 (205), the 3rd group of switching power circuit C (301) exports connecting valve power supply C accessory power outlet (10), voltage comparison amplifier C (302), Switching Power Supply C accessory power outlet (10) connects voltage comparison amplifier C (302), voltage comparison amplifier C (302) feedback link switching power circuit C (301), Switching Power Supply C accessory power outlet (10) output connects 4 line direct current band plug cables (004), 4 line direct current band plug cable (004) connecting circuit apparatus socket N3 (305), electric equipment socket N3 (305) connecting circuit apparatus of load N3 (307), electric equipment load N3 (307) connects power control circuit N3 (306), power control circuit N3 (306) connects pressurizer N3 (304), pressurizer N3 (304) connecting circuit apparatus socket N3 (305).
5. according to claim 2 or 4 described a kind of multiplexing synchronization voltage adapters, it is characterized in that described current rectifying and wave filtering circuit (001) is by thermistor NTC1, fuse F1, anti-interference filtration capacitor C 26, inductance E1, anti-interference filtration capacitor C 19, anti-interference filtration capacitor C 20, anti-interference filtration capacitor C 21, anti-interference filtration capacitor C 17, full-bridge rectification diode BD1, filter capacitor C27 forms, thermistor NTC1 and fuse F1 connect respectively the two ends of anti-interference filtration capacitor C 26, anti-interference filtration capacitor C 26 two ends connect respectively two inputs of inductance E1, two outputs of inductance E1 connect respectively the two ends of anti-interference filtration capacitor C 17, the two ends of anti-interference filtration capacitor C 17 connect respectively anti-interference filtration capacitor C 19 and anti-interference filtration capacitor C 20, anti-interference filtration capacitor C 19, the end that anti-interference filtration capacitor C 20 is connected with the anti-interference filtration capacitor C connects safely FG jointly, anti-interference filtration capacitor C 17 two ends connect respectively two alternating current inputs of full-bridge rectification diode BD1, full-bridge rectification diode BD1 negative electrode is connected two outputs and is connected respectively positive pole and the negative pole of filter capacitor C27 with anode, anodal connection+300V the output of filter capacitor C27, another termination of filter capacitor C27 negative pole and anti-interference filtration capacitor C 21 thermally.
6. according to claim 2 or 4 described a kind of multiplexing synchronization voltage adapters, it is characterized in that described constant-current source is by input+30V contact resistance R14, resistance R 15, resistance R 15 contact resistance R37, voltage stabilizing didoe DW6 negative electrode, resistance R 37 connecting triode Q9 emitters, triode Q9 collector electrode connection+30V output, voltage stabilizing didoe DW6 anodic bonding triode Q9 base stage, resistance R 38, resistance R 38 ground connection.
7. according to claim 2 or 4 described a kind of multiplexing synchronization voltage adapters, the in-phase input end that it is characterized in that described voltage comparison amplifier one route voltage stabilizing output sample resistance R13 concatenation operation amplifier U2A, sample resistance R12, another route voltage stabilizing reference voltage value input contact resistance R16, capacitor C 7 positive poles, resistance R 39, resistance R 39 connects capacitor C 15 positive poles, the inverting input of operational amplifier U2A, negative feedback resistor R11 and negative feedback capacitor C 12, negative feedback resistor R11 connects negative feedback capacitor C 13 positive poles, negative feedback capacitor C 13 negative poles connect negative feedback capacitor C 12, the output of operational amplifier U2A and resistance R 10, resistance R 10 connects the input anode of optical coupler U1, the positive power source terminal of diode D15 negative electrode concatenation operation amplifier U2A, resistance R 14, capacitor C 16 positive poles, the input negative electrode of optical coupler U1, the negative power end of operational amplifier U2A, sample resistance R12, capacitor C 15 negative poles, capacitor C 7 negative poles, resistance R 16, capacitor C 16 minus earths.
8. according to claim 2 or 4 described a kind of multiplexing synchronization voltage adapters, it is characterized in that described each power supply indicator circuit (005) is by this group+5V power supply contact resistance R17, resistance R 23, resistance R 17 contact resistance R18, resistance R 19, the in-phase input end of resistance R 20 and operational amplifier U2B, the inverting input of operational amplifier U2B connects capacitor C 4 anodal and resistance R 21, the output contact resistance R21 of operational amplifier U2B, resistance R 20 and resistance R 22, resistance R 22 connecting triode Q2 base stages, resistance R 23 connecting triode Q2 collector electrodes, triode Q2 emitter connecting luminous diode DS1 anode, resistance R 19 connects diode D11 negative electrode, D11 anodic bonding choke L2, output end of pressure-stabilizing, resistance R 18, capacitor C 4 negative poles and light-emitting diode DS1 minus earth.
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| CN106160510B (en) * | 2016-08-16 | 2018-06-22 | 杨大鸣 | A kind of multiple power source for being controlled by DC electrical appliances and its application |
| CN110266206B (en) * | 2019-06-25 | 2024-03-19 | 杨大鸣 | Synchronous voltage-current adapter |
| CN110492717A (en) * | 2019-07-01 | 2019-11-22 | 联想(北京)有限公司 | A kind of processing equipment and processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201075818Y (en) * | 2007-08-16 | 2008-06-18 | 深圳市华烨新科技实业有限公司 | Power adapter |
| CN201204543Y (en) * | 2008-05-26 | 2009-03-04 | 胡建坤 | Improved power adapter |
| CN201754565U (en) * | 2010-08-11 | 2011-03-02 | 杨大鸣 | Multiplex synchronous voltage adapter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075818Y (en) * | 2007-08-16 | 2008-06-18 | 深圳市华烨新科技实业有限公司 | Power adapter |
| CN201204543Y (en) * | 2008-05-26 | 2009-03-04 | 胡建坤 | Improved power adapter |
| CN201754565U (en) * | 2010-08-11 | 2011-03-02 | 杨大鸣 | Multiplex synchronous voltage adapter |
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