CN103633876B - Isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit - Google Patents
Isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit Download PDFInfo
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Abstract
The present invention relates to a kind of isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit.Export pulse-switching circuit respectively with isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit is connected; Isolated high-voltage and suspension auxiliary power supply part, Master control chip U1 is 7555 time-base circuits, its astable multivibrator circuit formed, by converting rear generation isolated high-voltage and many group suspension boost voltages.Square wave produces and impulsive quarantine control section, control chip is except 7555 of U5, U4 adopts TLP627-4 four-way photoelectrical coupler, response time is short, current transfer ratio is large, isolate withstand voltage height, ensure that high performance isolated controlling, finally by full-bridge driver output pulse switch, obtain completely isolated bipolarity hf and hv pulse and export.The bipolarity high-frequency and high-voltage square-wave pulse realizing completely isolated control exports; Output pulse frequency wide ranges, waveform are good, can paired pulses frequency regulate within the specific limits.
Description
Technical field
The present invention relates to a kind of for the isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit in the instrument and equipments such as Fibre Optical Sensor, charging device, measuring instrument, environmental monitoring in the field such as electronics industry and environmental protection.
Background technology
Along with the development of science and technology, the application of high-frequency and high-voltage impulse power supply is more and more extensive, except unipolar pulse exports, the demand that market exports bipolar pulse is increasing, not only require that fast response time, repetition rate are high, and require higher output pulse amplitude, and input and output are completely isolated.For reaching index of correlation requirement, it is comparatively large that this type of pulse power often makes volume, cost is high, conversion efficiency and reliability lower, not easily Miniaturization Design.
Summary of the invention
In view of the deficiency of existing conditions of demand and existence, the invention provides a kind of output pulse frequency wide ranges, fast response time, circuit structure simple isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit.
The present invention for achieving the above object, the technical scheme taked is: a kind of isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit, it is characterized in that: comprise isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit, output pulse-switching circuit, described output pulse-switching circuit is respectively with isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit is connected;
In described isolated high-voltage and suspension auxiliary electric power supply circuit, trigger end 2 pin of control chip U1 is connected with threshold value end 6 pin and distinguishes one end of connecting resistance R2 and electric capacity C4, one end of the discharge end 7 pin difference connecting resistance R1 of control chip U1, the other end of resistance R2, the positive pole of electric capacity C3 is connected with the negative pole of diode D1, the negative pole of electric capacity C3 is connected with the positive pole of diode D1 and connects and inputs ground GND, one end of connecting resistance R3 respectively after feeder ear 8 pin of control chip U1 is connected with forced resetting end 4 pin, the other end of resistance R1, the positive pole of electric capacity C3, the collector electrode of photoelectrical coupler U2 output triode, the other end of resistance R3 connects one end of inductance L 1 respectively, the positive pole of electric capacity C2 is also as input feeder ear+Vin, the other end of inductance L 1 connects the positive pole of electric capacity C1 respectively, Same Name of Ends 1 pin of transformer TRF primary coil Lp, the negative pole of electric capacity C1 and C2 meets input ground GND, one end of the different name end 2 pin difference connecting resistance R9 of transformer TRF primary coil Lp, the drain electrode of triode T5, the other end of resistance R9 meets input ground GND by electric capacity C7, resistance R4 is in parallel with diode D2, output 3 pin of control chip U1 connects the negative pole of diode D2, the positive pole of diode D2 connects the grid of triode T5, resistance R7 and R8 is in parallel with electric capacity C6, one end of the source electrode difference connecting resistance R6 and resistance R8 of triode T5, the other end of resistance R6 connects the base stage of triode T6 respectively, one end of resistance R5, the emitter of another termination photoelectrical coupler U2 output triode of resistance R5, voltage controling end 5 pin of control chip U1 connects one end of electric capacity C5 respectively, the collector electrode of triode T6, the emitter of triode T6 respectively with the other end of electric capacity C5 and C4, the other end of resistance R8, and earth terminal 1 pin of control chip U1 is connected rear and meets input ground GND, different name end 3 pin of the secondary coil Ls4 of transformer TRF connects the positive pole of diode D3 and the negative pole of diode D4 respectively, one end of the negative pole difference connecting resistance R10 and electric capacity C8 of diode D3, G1 draw this end is isolator met after the positive pole of diode D4 is connected with one end of electric capacity C9 with C10 respectively, the other end of electric capacity C8 with C9 is connected and connects Same Name of Ends 4 pin of transformer TRF secondary coil Ls4, one end of resistance R11 is connected with the other end of electric capacity C10 with resistance R10 and respectively as isolated high-voltage output+HV, different name end 5 pin of the secondary coil Ls5 of transformer TRF connects the positive pole of diode D5, electric capacity C11 is in parallel with resistance R16, the negative pole of diode D5 connects the positive pole of electric capacity C11 respectively, one end of resistance R15, the positive pole of photoelectrical coupler U2 input diode, the negative pole of photoelectrical coupler U2 input diode connects one end of electric capacity C12 respectively by resistance R14, the other end of resistance R15, the negative electrode of control chip U3, the other end of resistance R11 connects one end of variable resistor R28 respectively by resistance R12, the other end of electric capacity C12, the control end R of control chip U3, one end of the other end connecting resistance R13 of variable resistor R28, the anode A of control chip U3 respectively with the other end of resistance R13, the negative pole of electric capacity C11, Same Name of Ends 6 pin of transformer secondary coil Ls5 is connected and meets G1 isolator, different name end 7 pin of the secondary coil Ls1 of transformer connects the positive pole of diode D6, resistance R17 is in parallel with electric capacity C13, and conduct suspends, 1 feeder ear+V1 draws in one end of the negative pole connecting resistance R17 of diode D6, G1 is isolator met after the Same Name of Ends of transformer secondary coil Ls1 is connected with the other end of resistance R17, different name end 8 pin of the secondary coil Ls2 of transformer connects the positive pole of diode D7, resistance R18 is in parallel with electric capacity C14, and conduct suspends, 2 feeder ear+V2 draw in one end of the negative pole connecting resistance R18 of diode D7, Same Name of Ends 9 pin of transformer secondary coil Ls2 is connected with the other end of resistance R18 and draws as the 2 ground G2 that suspend afterwards, different name end 10 pin of the secondary coil Ls3 of transformer connects the positive pole of diode D8, resistance R19 is in parallel with electric capacity C15, and conduct suspends, 3 feeder ear+V3 draw in one end of the negative pole connecting resistance R19 of diode D8, Same Name of Ends 11 pin of transformer secondary coil Ls3 is connected with the other end of resistance R19 and draws as the 3 ground G3 that suspend afterwards,
Described square wave produces and in impulsive quarantine control circuit, trigger end 2 pin of control chip U5 is connected with threshold value end 6 pin and connects one end of variable resistor R29 and electric capacity C16 respectively, one end of the other end connecting resistance R24 of variable resistor R29, connect after voltage controling end 5 pin of control chip U5 is connected with earth terminal 1 pin of control chip U5 with the other end of electric capacity C16 respectively by electric capacity C17 and input ground GND, feeder ear 8 pin of control chip U5 is connected with forced resetting end 4 pin, and after being connected with the collector electrode of triode T7, meet input feeder ear+Vin, output 3 pin of control chip U5 is connect after the base stage of triode T7 with T8 is connected, the collector electrode of triode T8 meets input ground GND, resistance R25 is in parallel with electric capacity C18, one end of connecting resistance R25 respectively after the emitter of triode T7 with T8 is connected, the other end of resistance R24, the base stage of another termination triode T9 of resistance R25, the emitter of triode T9 connects input ground, the collector electrode of triode T9 connects the negative pole of diode D9 respectively, 8 pin of four-way photoelectrical coupler chip U4, one end of resistance R26 with R27 is connected and meets input feeder ear+Vin, the other end of the positive pole difference connecting resistance R26 of diode D9, 1 pin of four-way photoelectrical coupler chip U4, 5 pin of another termination four-way photoelectrical coupler chip U4 of resistance R27, 2 pin of four-way photoelectrical coupler chip U4 are connected with 3 pin, 6 pin of four-way photoelectrical coupler chip U4 are connected with 7 pin, 4 pin of four-way photoelectrical coupler chip U4 connect input ground,
In described output pulse-switching circuit, the drain electrode of MOS triode T1 respectively with the drain electrode of MOS triode T3, isolated high-voltage output+the HV in isolated high-voltage and suspension auxiliary electric power supply circuit is met after the negative pole of diode D14 with D16 is connected, the grid of MOS triode T1 connects the negative pole of diode D10 respectively, one end of resistance R20, square wave produces and 16 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R20 and suspension auxiliary electric power supply circuit 2 feeder ear+V2, the source electrode of MOS triode T1 respectively with the positive pole of diode D10 and D14, the drain electrode of MOS triode T2, the negative pole of diode D15, suspension 2 ground G2 in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 15 pin of four-way photoelectrical coupler chip U4 are connected, and draw as pulse output end OUT2, the grid of MOS triode T3 connects the negative pole of diode D12 respectively, one end of resistance R22, square wave produces and 10 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R22 and suspension auxiliary electric power supply circuit 3 feeder ear+V3, the source electrode of MOS triode T3 respectively with the positive pole of diode D12 and D16, the drain electrode of MOS triode T4, the negative pole of diode D17, suspension 3 ground G3 in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 9 pin of four-way photoelectrical coupler chip U4 are connected, and draw as pulse output end OUT1, the grid of MOS triode T2 connects the negative pole of diode D11 respectively, one end of resistance R21, square wave produces and 12 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R21 and suspension auxiliary electric power supply circuit 1 feeder ear+V1, the source electrode of MOS triode T2 respectively with the positive pole of diode D11 and D15, G1 isolator in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 11 pin of four-way photoelectrical coupler chip U4 are connected, the grid of MOS triode T4 connects the negative pole of diode D13 respectively, one end of resistance R23, square wave produces and 14 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R23 and suspension auxiliary electric power supply circuit 1 feeder ear+V1, the source electrode of MOS triode T4 respectively with the positive pole of diode D13 and D17, G1 isolator in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 13 pin of four-way photoelectrical coupler chip U4 are connected.
The invention has the beneficial effects as follows: the bipolarity high-frequency and high-voltage square-wave pulse realizing completely isolated control exports; Output pulse frequency wide ranges, waveform are good, and can paired pulses frequency regulate within the specific limits; Circuit structure is simple, is easy to small-sized and modularized design; Export response fast, conversion efficiency is high, reliable long-term working is good.
Accompanying drawing explanation
Fig. 1 is that circuit of the present invention connects block diagram;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1, 2, isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit, comprise isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit, output pulse-switching circuit, described output pulse-switching circuit is respectively with isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit is connected.
In above-mentioned isolated high-voltage and suspension auxiliary electric power supply circuit, trigger end 2 pin of control chip U1 is connected with threshold value end 6 pin and distinguishes one end of connecting resistance R2 and electric capacity C4, one end of the discharge end 7 pin difference connecting resistance R1 of control chip U1, the other end of resistance R2, the positive pole of electric capacity C3 is connected with the negative pole of diode D1, the negative pole of electric capacity C3 is connected with the positive pole of diode D1 and connects and inputs ground GND, one end of connecting resistance R3 respectively after feeder ear 8 pin of control chip U1 is connected with forced resetting end 4 pin, the other end of resistance R1, the positive pole of electric capacity C3, the collector electrode of photoelectrical coupler U2 output triode, the other end of resistance R3 connects one end of inductance L 1 respectively, the positive pole of electric capacity C2 is also as input feeder ear+Vin, the other end of inductance L 1 connects the positive pole of electric capacity C1 respectively, Same Name of Ends 1 pin of transformer TRF primary coil Lp, the negative pole of electric capacity C1 and C2 meets input ground GND, one end of the different name end 2 pin difference connecting resistance R9 of transformer TRF primary coil Lp, the drain electrode of triode T5, the other end of resistance R9 meets input ground GND by electric capacity C7, resistance R4 is in parallel with diode D2, output 3 pin of control chip U1 connects the negative pole of diode D2, the positive pole of diode D2 connects the grid of triode T5, resistance R7 and R8 is in parallel with electric capacity C6, one end of the source electrode difference connecting resistance R6 and resistance R8 of triode T5, the other end of resistance R6 connects the base stage of triode T6 respectively, one end of resistance R5, the emitter of another termination photoelectrical coupler U2 output triode of resistance R5, voltage controling end 5 pin of control chip U1 connects one end of electric capacity C5 respectively, the collector electrode of triode T6, the emitter of triode T6 respectively with the other end of electric capacity C5 and C4, the other end of resistance R8, and earth terminal 1 pin of control chip U1 is connected rear and meets input ground GND, different name end 3 pin of the secondary coil Ls4 of transformer TRF connects the positive pole of diode D3 and the negative pole of diode D4 respectively, one end of the negative pole difference connecting resistance R10 and electric capacity C8 of diode D3, G1 draw this end is isolator met after the positive pole of diode D4 is connected with one end of electric capacity C9 with C10 respectively, the other end of electric capacity C8 with C9 is connected and connects Same Name of Ends 4 pin of transformer TRF secondary coil Ls4, one end of resistance R11 is connected with the other end of electric capacity C10 with resistance R10 and respectively as isolated high-voltage output+HV, different name end 5 pin of the secondary coil Ls5 of transformer TRF connects the positive pole of diode D5, electric capacity C11 is in parallel with resistance R16, the negative pole of diode D5 connects the positive pole of electric capacity C11 respectively, one end of resistance R15, the positive pole of photoelectrical coupler U2 input diode, the negative pole of photoelectrical coupler U2 input diode connects one end of electric capacity C12 respectively by resistance R14, the other end of resistance R15, the negative electrode of control chip U3, the other end of resistance R11 connects one end of variable resistor R28 respectively by resistance R12, the other end of electric capacity C12, the control end R of control chip U3, one end of the other end connecting resistance R13 of variable resistor R28, the anode A of control chip U3 respectively with the other end of resistance R13, the negative pole of electric capacity C11, Same Name of Ends 6 pin of transformer secondary coil Ls5 is connected and meets G1 isolator, different name end 7 pin of the secondary coil Ls1 of transformer connects the positive pole of diode D6, resistance R17 is in parallel with electric capacity C13, and conduct suspends, 1 feeder ear+V1 draws in one end of the negative pole connecting resistance R17 of diode D6, G1 is isolator met after the Same Name of Ends of transformer secondary coil Ls1 is connected with the other end of resistance R17, different name end 8 pin of the secondary coil Ls2 of transformer connects the positive pole of diode D7, resistance R18 is in parallel with electric capacity C14, and conduct suspends, 2 feeder ear+V2 draw in one end of the negative pole connecting resistance R18 of diode D7, Same Name of Ends 9 pin of transformer secondary coil Ls2 is connected with the other end of resistance R18 and draws as the 2 ground G2 that suspend afterwards, different name end 10 pin of the secondary coil Ls3 of transformer connects the positive pole of diode D8, resistance R19 is in parallel with electric capacity C15, and conduct suspends, 3 feeder ear+V3 draw in one end of the negative pole connecting resistance R19 of diode D8, Same Name of Ends 11 pin of transformer secondary coil Ls3 is connected with the other end of resistance R19 and draws as the 3 ground G3 that suspend afterwards,
Above-mentioned square wave produces and in impulsive quarantine control circuit, trigger end 2 pin of control chip U5 is connected with threshold value end 6 pin and connects one end of variable resistor R29 and electric capacity C16 respectively, one end of the other end connecting resistance R24 of variable resistor R29, connect after voltage controling end 5 pin of control chip U5 is connected with earth terminal 1 pin of control chip U5 with the other end of electric capacity C16 respectively by electric capacity C17 and input ground GND, feeder ear 8 pin of control chip U5 is connected with forced resetting end 4 pin, and after being connected with the collector electrode of triode T7, meet input feeder ear+Vin, output 3 pin of control chip U5 is connect after the base stage of triode T7 with T8 is connected, the collector electrode of triode T8 meets input ground GND, resistance R25 is in parallel with electric capacity C18, one end of connecting resistance R25 respectively after the emitter of triode T7 with T8 is connected, the other end of resistance R24, the base stage of another termination triode T9 of resistance R25, the emitter of triode T9 connects input ground, the collector electrode of triode T9 connects the negative pole of diode D9 respectively, 8 pin of four-way photoelectrical coupler chip U4, one end of resistance R26 with R27 is connected and meets input feeder ear+Vin, the other end of the positive pole difference connecting resistance R26 of diode D9, 1 pin of four-way photoelectrical coupler chip U4, 5 pin of another termination four-way photoelectrical coupler chip U4 of resistance R27, 2 pin of four-way photoelectrical coupler chip U4 are connected with 3 pin, 6 pin of four-way photoelectrical coupler chip U4 are connected with 7 pin, 4 pin of four-way photoelectrical coupler chip U4 connect input ground,
In above-mentioned output pulse-switching circuit, the drain electrode of MOS triode T1 respectively with the drain electrode of MOS triode T3, isolated high-voltage output+the HV in isolated high-voltage and suspension auxiliary electric power supply circuit is met after the negative pole of diode D14 with D16 is connected, the grid of MOS triode T1 connects the negative pole of diode D10 respectively, one end of resistance R20, square wave produces and 16 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R20 and suspension auxiliary electric power supply circuit 2 feeder ear+V2, the source electrode of MOS triode T1 respectively with the positive pole of diode D10 and D14, the drain electrode of MOS triode T2, the negative pole of diode D15, suspension 2 ground G2 in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 15 pin of four-way photoelectrical coupler chip U4 are connected, and draw as pulse output end OUT2, the grid of MOS triode T3 connects the negative pole of diode D12 respectively, one end of resistance R22, square wave produces and 10 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R22 and suspension auxiliary electric power supply circuit 3 feeder ear+V3, the source electrode of MOS triode T3 respectively with the positive pole of diode D12 and D16, the drain electrode of MOS triode T4, the negative pole of diode D17, suspension 3 ground G3 in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 9 pin of four-way photoelectrical coupler chip U4 are connected, and draw as pulse output end OUT1, the grid of MOS triode T2 connects the negative pole of diode D11 respectively, one end of resistance R21, square wave produces and 12 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R21 and suspension auxiliary electric power supply circuit 1 feeder ear+V1, the source electrode of MOS triode T2 respectively with the positive pole of diode D11 and D15, G1 isolator in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 11 pin of four-way photoelectrical coupler chip U4 are connected, the grid of MOS triode T4 connects the negative pole of diode D13 respectively, one end of resistance R23, square wave produces and 14 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R23 and suspension auxiliary electric power supply circuit 1 feeder ear+V1, the source electrode of MOS triode T4 respectively with the positive pole of diode D13 and D17, G1 isolator in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 13 pin of four-way photoelectrical coupler chip U4 are connected,
Whole circuit is made up of three parts.Wherein isolated high-voltage and suspension auxiliary power supply part, Master control chip U1 adopts 7555 common time-base circuits, utilize it to control simply, extremely low power consumption, the feature such as power supply accommodation is wide, load capacity is strong, its astable multivibrator circuit formed, by converting rear generation isolated high-voltage and many group suspension boost voltages.
Square wave produces and impulsive quarantine control section, and control chip is except 7555 of U5, and U4 adopts TLP627-4 four-way photoelectrical coupler, and its response time is short, current transfer ratio large, isolate withstand voltage height, ensure that high performance isolated controlling.
Finally by full-bridge driver output pulse switch, obtain completely isolated bipolarity hf and hv pulse and export.
Whole control circui is simple, consumes energy little, and the repetition rate of output pulse is high, waveform good.For improving circuit performance, select the components and parts that noise is low, temperature drift is little, high frequency characteristics is good.All components and parts all can adopt paster to encapsulate, to reduce overall dimension.
Operation principle
In isolated high-voltage and suspension auxiliary electric power supply circuit, control chip U1 and electric capacity C4, resistance R2 and R1 etc. form astable multivibrator circuit.From the oscillation pulse signal that 3 pin of control chip U1 export, by switch triode T5 driving transformer TRF primary coil Lp, higher-order of oscillation pulse voltage is produced at its two ends, and be coupled to by switch transformer TRF that it is secondary, the high_voltage isolation sampling feedback consisted of U2, U3 etc. controls, obtain stable isolated high-voltage to export, add again simultaneously and export many group suspension boost voltage+V1 ,+V2 and+V3.
Square wave produces and in impulsive quarantine control circuit, forms square wave generation circuit by control chip U5, electric capacity C16, resistance R24 etc., and the square-wave pulse of output by controlling triode T9, and then controls isolating switch U4.When square wave exports as high level, triode T9 is open-minded, diode D9 by 1 of U4,2 pin and 3, photoelectrical coupler input clamper that 4 pin are corresponding, therefore the output state of U4 is that K1 and K4 disconnects, K2 and K3 is open-minded; Otherwise when square wave exports as low level, triode T9 ends, 1,2 pin of U4 and photoelectrical coupler input diode conducting corresponding to 3,4 pin, 5,6 pin of U4 and 7,8 pin corresponding photoelectrical coupler input diode cut-off, therefore the output state of U4 is that K1 and K4 is open-minded, K2 and K3 disconnect.
In output pulse-switching circuit, by the output state of isolating switch U4, control switch MOS triode T1 ~ T4 periodically respectively.When K1 and K4 disconnection, K2 and K3 open, then switch transistor T 1 and T4 conducting, switch transistor T 2 and T3 turn off, and export the high-voltage pulse of a polarity; When K1 and K4 open, K2 and K3 disconnect time, then switch transistor T 1 and T4 turn off, and switch transistor T 2 and T3 conducting, export the high-voltage pulse of another polarity.
Claims (1)
1. an isolated controlling bipolarity high-frequency and high-voltage impulse power supply circuit, it is characterized in that: comprise isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit, output pulse-switching circuit, described output pulse-switching circuit is respectively with isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and impulsive quarantine control circuit is connected;
In described isolated high-voltage and suspension auxiliary electric power supply circuit, trigger end 2 pin of control chip U1 is connected with threshold value end 6 pin and distinguishes one end of connecting resistance R2 and electric capacity C4, one end of the discharge end 7 pin difference connecting resistance R1 of control chip U1, the other end of resistance R2, the positive pole of electric capacity C3 is connected with the negative pole of diode D1, the negative pole of electric capacity C3 is connected with the positive pole of diode D1 and connects and inputs ground, one end of connecting resistance R3 respectively after feeder ear 8 pin of control chip U1 is connected with forced resetting end 4 pin, the other end of resistance R1, the positive pole of electric capacity C3, the collector electrode of photoelectrical coupler U2 output triode, the other end of resistance R3 connects one end of inductance L 1 respectively, the positive pole of electric capacity C2 is also as input feeder ear+Vin, the other end of inductance L 1 connects the positive pole of electric capacity C1 respectively, Same Name of Ends 1 pin of transformer TRF primary coil Lp, the negative pole of electric capacity C1 and C2 connects input ground, one end of the different name end 2 pin difference connecting resistance R9 of transformer TRF primary coil Lp, the drain electrode of metal-oxide-semiconductor T5, the other end of resistance R9 connects input ground by electric capacity C7, resistance R4 is in parallel with diode D2, output 3 pin of control chip U1 connects the negative pole of diode D2, the positive pole of diode D2 connects the grid of metal-oxide-semiconductor T5, resistance R7 and R8 is in parallel with electric capacity C6, one end of the source electrode difference connecting resistance R6 and resistance R8 of metal-oxide-semiconductor T5, the other end of resistance R6 connects the base stage of triode T6 respectively, one end of resistance R5, the emitter of another termination photoelectrical coupler U2 output triode of resistance R5, voltage controling end 5 pin of control chip U1 connects one end of electric capacity C5 respectively, the collector electrode of triode T6, the emitter of triode T6 respectively with the other end of electric capacity C5 and C4, the other end of resistance R8, and earth terminal 1 pin of control chip U1 is connected rear and connects input ground, different name end 3 pin of the secondary coil Ls4 of transformer TRF connects the positive pole of diode D3 and the negative pole of diode D4 respectively, one end of the negative pole difference connecting resistance R10 and electric capacity C8 of diode D3, G1 draw this end is isolator met after the positive pole of diode D4 is connected with one end of electric capacity C9 with C10 respectively, the other end of electric capacity C8 with C9 is connected and connects Same Name of Ends 4 pin of transformer TRF secondary coil Ls4, one end of resistance R11 is connected with the other end of electric capacity C10 with resistance R10 and respectively as isolated high-voltage output+HV, different name end 5 pin of the secondary coil Ls5 of transformer TRF connects the positive pole of diode D5, electric capacity C11 is in parallel with resistance R16, the negative pole of diode D5 connects the positive pole of electric capacity C11 respectively, one end of resistance R15, the positive pole of photoelectrical coupler U2 input diode, the negative pole of photoelectrical coupler U2 input diode connects one end of electric capacity C12 respectively by resistance R14, the other end of resistance R15, the negative electrode of control chip U3, the other end of resistance R11 connects one end of variable resistor R28 respectively by resistance R12, the other end of electric capacity C12, the control end R of control chip U3, one end of the other end connecting resistance R13 of variable resistor R28, the anode A of control chip U3 respectively with the other end of resistance R13, the negative pole of electric capacity C11, Same Name of Ends 6 pin of transformer secondary coil Ls5 is connected and meets G1 isolator, different name end 7 pin of the secondary coil Ls1 of transformer connects the positive pole of diode D6, resistance R17 is in parallel with electric capacity C13, and conduct suspends, 1 feeder ear+V1 draws in one end of the negative pole connecting resistance R17 of diode D6, G1 is isolator met after the Same Name of Ends of transformer secondary coil Ls1 is connected with the other end of resistance R17, different name end 8 pin of the secondary coil Ls2 of transformer connects the positive pole of diode D7, resistance R18 is in parallel with electric capacity C14, and conduct suspends, 2 feeder ear+V2 draw in one end of the negative pole connecting resistance R18 of diode D7, Same Name of Ends 9 pin of transformer secondary coil Ls2 is connected with the other end of resistance R18 and draws as the 2 ground G2 that suspend afterwards, different name end 10 pin of the secondary coil Ls3 of transformer connects the positive pole of diode D8, resistance R19 is in parallel with electric capacity C15, and conduct suspends, 3 feeder ear+V3 draw in one end of the negative pole connecting resistance R19 of diode D8, Same Name of Ends 11 pin of transformer secondary coil Ls3 is connected with the other end of resistance R19 and draws as the 3 ground G3 that suspend afterwards,
Described square wave produces and in impulsive quarantine control circuit, trigger end 2 pin of control chip U5 is connected with threshold value end 6 pin and connects one end of variable resistor R29 and electric capacity C16 respectively, one end of the other end connecting resistance R24 of variable resistor R29, connect after voltage controling end 5 pin of control chip U5 is connected with earth terminal 1 pin of control chip U5 with the other end of electric capacity C16 respectively by electric capacity C17 and input ground, feeder ear 8 pin of control chip U5 is connected with forced resetting end 4 pin, and after being connected with the collector electrode of triode T7, meet input feeder ear+Vin, output 3 pin of control chip U5 is connect after the base stage of triode T7 with T8 is connected, the collector electrode of triode T8 connects input ground, resistance R25 is in parallel with electric capacity C18, one end of connecting resistance R25 respectively after the emitter of triode T7 with T8 is connected, the other end of resistance R24, the base stage of another termination triode T9 of resistance R25, the emitter of triode T9 connects input ground, the collector electrode of triode T9 connects the negative pole of diode D9 respectively, 8 pin of four-way photoelectrical coupler chip U4, one end of resistance R26 with R27 is connected and meets input feeder ear+Vin, the other end of the positive pole difference connecting resistance R26 of diode D9, 1 pin of four-way photoelectrical coupler chip U4, 5 pin of another termination four-way photoelectrical coupler chip U4 of resistance R27, 2 pin of four-way photoelectrical coupler chip U4 are connected with 3 pin, 6 pin of four-way photoelectrical coupler chip U4 are connected with 7 pin, 4 pin of four-way photoelectrical coupler chip U4 connect input ground,
In described output pulse-switching circuit, the drain electrode of metal-oxide-semiconductor T1 respectively with the drain electrode of metal-oxide-semiconductor T3, isolated high-voltage output+the HV in isolated high-voltage and suspension auxiliary electric power supply circuit is met after the negative pole of diode D14 with D16 is connected, the grid of metal-oxide-semiconductor T1 connects the negative pole of diode D10 respectively, one end of resistance R20, square wave produces and 16 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R20 and suspension auxiliary electric power supply circuit 2 feeder ear+V2, the source electrode of metal-oxide-semiconductor T1 respectively with the positive pole of diode D10 and D14, the drain electrode of metal-oxide-semiconductor T2, the negative pole of diode D15, suspension 2 ground G2 in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 15 pin of four-way photoelectrical coupler chip U4 are connected, and draw as pulse output end OUT2, the grid of metal-oxide-semiconductor T3 connects the negative pole of diode D12 respectively, one end of resistance R22, square wave produces and 10 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R22 and suspension auxiliary electric power supply circuit 3 feeder ear+V3, the source electrode of metal-oxide-semiconductor T3 respectively with the positive pole of diode D12 and D16, the drain electrode of metal-oxide-semiconductor T4, the negative pole of diode D17, suspension 3 ground G3 in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 9 pin of four-way photoelectrical coupler chip U4 are connected, and draw as pulse output end OUT1, the grid of metal-oxide-semiconductor T2 connects the negative pole of diode D11 respectively, one end of resistance R21, square wave produces and 12 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R21 and suspension auxiliary electric power supply circuit 1 feeder ear+V1, the source electrode of metal-oxide-semiconductor T2 respectively with the positive pole of diode D11 and D15, G1 isolator in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 11 pin of four-way photoelectrical coupler chip U4 are connected, the grid of metal-oxide-semiconductor T4 connects the negative pole of diode D13 respectively, one end of resistance R23, square wave produces and 14 pin of four-way photoelectrical coupler chip U4 in impulsive quarantine control circuit, suspend in another termination isolated high-voltage of resistance R23 and suspension auxiliary electric power supply circuit 1 feeder ear+V1, the source electrode of metal-oxide-semiconductor T4 respectively with the positive pole of diode D13 and D17, G1 isolator in isolated high-voltage and suspension auxiliary electric power supply circuit, square wave produces and in impulsive quarantine control circuit, 13 pin of four-way photoelectrical coupler chip U4 are connected.
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| CN104022676A (en) * | 2014-06-17 | 2014-09-03 | 电子科技大学 | Asymmetric waveform pulse power supply |
| CN104269015B (en) * | 2014-09-17 | 2017-01-18 | 杭州普安科技有限公司 | Device for detecting whether power measurement device is attacked or not |
| CN104967311A (en) * | 2015-06-09 | 2015-10-07 | 广州禾信分析仪器有限公司 | Direct-current high-voltage power supply used for mass spectrometer |
| CN106201954B (en) * | 2016-08-25 | 2023-07-25 | 东文高压电源（天津）股份有限公司 | USB isolation fiber conversion circuit |
| CN108649805B (en) * | 2018-06-14 | 2023-11-10 | 成都信息工程大学 | High-power DC-DC power supply conversion circuit based on isolation and delay technology |
| CN110460248A (en) * | 2019-08-23 | 2019-11-15 | 四川甘华电源科技有限公司 | A kind of module power supply circuit for realizing high-voltage isolating |
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Address after: 300220, Tianjin, Hexi District, 20 Dongting Road, Chen Tong Technology Business District Service Center 415-3 Patentee after: Wen Dong high voltage power supply (Tianjin) Limited by Share Ltd Address before: 300171, blue mansion, No. eleven, No. 47, Hedong Road, Hedong District, Tianjin, 8F Patentee before: Tianjin Dongwen High Voltage Power Supply Plant |