CN205051615U - Machine carries dc generator controller control circuit that stimulates magnetism - Google Patents
Machine carries dc generator controller control circuit that stimulates magnetism Download PDFInfo
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- CN205051615U CN205051615U CN201520793521.7U CN201520793521U CN205051615U CN 205051615 U CN205051615 U CN 205051615U CN 201520793521 U CN201520793521 U CN 201520793521U CN 205051615 U CN205051615 U CN 205051615U
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Abstract
The utility model belongs to the machine carries the dc generator control technique, relates to the improvement to machine carries dc generator controller control circuit that stimulates magnetism. It includes dc generator's field winding L and de -excitation circuit, its characterized in that: the de -excitation circuit still includes the 2nd electronic switch V2 and second diode D2, have a de -excitation control circuit, it comprises bleeder circuit (1), comparison circuit (2) and front end circuit (3). The utility model provides a modified machine carries dc generator controller control circuit that stimulates magnetism has improved the afterflow ability greatly, has shortened the dynamic response time, has reduced transient voltage and recovery time, has satisfied the mark GJB181A -2003's of state army technical requirement.
Description
Technical field
The utility model belongs to airborne DC generator control technology, relates to the improvement to airborne DC generator control device excitation control circuit.
Background technology
Transient state voltage adjustment characteristic is the important indicator of power-supply system power supply quality.This power-supply system requires when working properly, shock load and prominent unload power-supply system in load two kinds of situations transient state and steady state voltage should remain in the limit of regulation.Be greater than 18V when being shock load according to national military standard GJB181A-2003 regulation transient voltage scope, dash forward when unloading load and be less than 50V; Recovery time is less than 100ms when being shock load, dashes forward when unloading load and is less than 82.5ms.Traditional airborne DC generator control device excitation control circuit is see a Fig. 1, and it is made up of the field winding L of DC generator and demagnetization circuit.Demagnetization circuit is made up of the first electronic switch V1 and the first diode D1.First electronic switch V1 is a PNP triode, the emitter of this PNP triode connects the excitatory pressure output of DC generator exciting circuit, the base stage of this PNP triode is connected with the first electronic switch V1 control signal output of DC generator control device, the collector electrode of this PNP triode is connected with one end of field winding L and the negative pole of the first diode D1 respectively, the other end of field winding L and the plus earth of the first diode D1.
Its operation principle is: when generator normal power generation by regulator generator controller in PNP triode V1 saturation conduction or cut-off make output voltage stabilization in (28.5 ± 1.5) V normal range (NR).When unloading load when dashing forward, generator output voltage rises to more than 30V very soon, PNP triode V1 ends completely, the remaining exciting curent of generator field winding will by field winding L and the first diode D1 afterflow, and the reduction due to excitatory stream returns in about 28.5V normal range (NR) by the output voltage of such generator.
Its shortcoming is: the field winding L of DC generator by means of only the first diode D1 afterflow, afterflow ability, exciting curent decline slower, dynamic response time is long, and transient voltage is excessive, recovery time is long, does not meet the technical requirement of national military standard GJB181A-2003.
Summary of the invention
The purpose of this utility model is: the airborne DC generator control device excitation control circuit proposing a kind of improvement, to improve afterflow ability, shortens dynamic response time, reduces transient voltage and recovery time, meet the technical requirement of national military standard GJB181A-2003.
The technical solution of the utility model is: a kind of airborne DC generator control device excitation control circuit, comprise field winding L and the demagnetization circuit of DC generator, demagnetization circuit comprises the first electronic switch V1 and the first diode D1, first electronic switch V1 is a PNP triode, the emitter of this PNP triode connects the excitation voltage output of DC generator exciting circuit, the base stage of this PNP triode is connected with the first electronic switch V1 control signal output of DC generator control device, the collector electrode of this PNP triode is connected with one end of field winding L and the negative pole of the first diode D1 respectively, the plus earth of the first diode D1, it is characterized in that:
A, demagnetization circuit also comprise the second electronic switch V2 and the second diode D2, second electronic switch V2 is a NPN triode, the grounded emitter of this NPN triode, the collector electrode of this NPN triode is connected with the other end of field winding L and the positive pole of the second diode D2 respectively, and the negative pole of the second diode D2 connects the voltage output end of DC generator;
B, have a demagnetization control circuit, it is made up of bleeder circuit 1, comparison circuit 2 and front end circuit 3;
Bleeder circuit 1 is made up of resistance R3 ~ resistance R6, electric capacity C1 and C2; The voltage output end of the one termination DC generator of resistance R4, ground connection after the other end series resistance R3 of resistance R4, electric capacity C1 is attempted by the two ends of resistance R3, one end of resistance R5 is connected with the output of+15V voltage, ground connection after the other end series resistance R6 of resistance R5, electric capacity C2 is attempted by the two ends of resistance R6;
Comparison circuit 2 is made up of resistance R7 and R8, electric capacity C3 and operational amplifier N; One end of resistance R7 is connected with the series connection point of resistance R3 and resistance R4, the in-phase end N3 of another termination operational amplifier N of resistance R7, one end of resistance R8 is connected with the series connection point of resistance R5 and resistance R6, the end of oppisite phase N2 of another termination operational amplifier N of resistance R8, the earth terminal N4 ground connection of operational amplifier N, the power end N8 of operational amplifier N is connected with the output of+15V voltage, and electric capacity C3 is connected between the power end N8 of operational amplifier N and ground;
Front end circuit 3 is made up of diode D3, voltage stabilizing didoe D4, resistance R9 ~ resistance R12, NPN triode V3, the positive pole of diode D3 is connected with the reference voltage output terminal of DC generator control device, after the negative pole series resistance R9 of diode D3 respectively with the base stage of NPN triode V3, one end of resistance R10 is connected with one end of resistance R11, the other end of resistance R10 is connected with the positive pole of voltage stabilizing didoe D4, the negative pole of voltage stabilizing didoe D4 is connected with the output N1 of operational amplifier N, the resistance R11 other end is connected with the emitter of NPN triode V3, the two ends of resistance R12 are connected with the collector and emitter of NPN triode V3 respectively, the collector electrode of NPN triode V3 is connected with the base stage of the second electronic switch V2 in demagnetization circuit, the grounded emitter of NPN triode V3.
The utility model has the advantages that: the airborne DC generator control device excitation control circuit proposing a kind of improvement, substantially increase afterflow ability, shorten dynamic response time, reduce transient voltage and recovery time, meet the technical requirement of national military standard GJB181A-2003.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of traditional airborne DC generator control device excitation control circuit.
Fig. 2 is circuit theory diagrams of the present utility model, and this figure is the schematic diagram of demagnetization circuit in the utility model.
Fig. 3 is circuit theory diagrams of the present utility model, and this figure is the schematic diagram of demagnetization control circuit in the utility model.
Embodiment
Below the utility model is described in further details.See Fig. 2, 3, a kind of airborne DC generator control device excitation control circuit, comprise field winding L and the demagnetization circuit of DC generator, demagnetization circuit comprises the first electronic switch V1 and the first diode D1, first electronic switch V1 is a PNP triode, the emitter of this PNP triode connects the excitatory pressure output of DC generator exciting circuit, the base stage of this PNP triode is connected with the first electronic switch V1 control signal output of DC generator control device, the collector electrode of this PNP triode is connected with one end of field winding L and the negative pole of the first diode D1 respectively, the plus earth of the first diode D1, it is characterized in that:
A, demagnetization circuit also comprise the second electronic switch V2 and the second diode D2, second electronic switch V2 is a NPN triode, the grounded emitter of this NPN triode, the collector electrode of this NPN triode is connected with the other end of field winding L and the positive pole of the second diode D2 respectively, and the negative pole of the second diode D2 connects the voltage output end of DC generator;
B, have a demagnetization control circuit, it is made up of bleeder circuit 1, comparison circuit 2 and front end circuit 3;
Bleeder circuit 1 is made up of resistance R3 ~ resistance R6, electric capacity C1 and C2; The voltage output end of the one termination DC generator of resistance R4, ground connection after the other end series resistance R3 of resistance R4, electric capacity C1 is attempted by the two ends of resistance R3, one end of resistance R5 is connected with the output of+15V voltage, ground connection after the other end series resistance R6 of resistance R5, electric capacity C2 is attempted by the two ends of resistance R6;
Comparison circuit 2 is made up of resistance R7 and R8, electric capacity C3 and operational amplifier N; One end of resistance R7 is connected with the series connection point of resistance R3 and resistance R4, the in-phase end N3 of another termination operational amplifier N of resistance R7, one end of resistance R8 is connected with the series connection point of resistance R5 and resistance R6, the end of oppisite phase N2 of another termination operational amplifier N of resistance R8, the earth terminal N4 ground connection of operational amplifier N, the power end N8 of operational amplifier N is connected with the output of+15V voltage, and electric capacity C3 is connected between the power end N8 of operational amplifier N and ground;
Front end circuit 3 is made up of diode D3, voltage stabilizing didoe D4, resistance R9 ~ resistance R12, NPN triode V3, the positive pole of diode D3 is connected with the reference voltage output terminal of DC generator control device, after the negative pole series resistance R9 of diode D3 respectively with the base stage of NPN triode V3, one end of resistance R10 is connected with one end of resistance R11, the other end of resistance R10 is connected with the positive pole of voltage stabilizing didoe D4, the negative pole of voltage stabilizing didoe D4 is connected with the output N1 of operational amplifier N, the resistance R11 other end is connected with the emitter of NPN triode V3, the two ends of resistance R12 are connected with the collector and emitter of NPN triode V3 respectively, the collector electrode of NPN triode V3 is connected with the base stage of the second electronic switch V2 in demagnetization circuit, the grounded emitter of NPN triode V3.
Operation principle of the present utility model is: when generator normal power generation by regulating the saturation conduction of PNP triode V101 or cut-off to make output voltage stabilization in (28.5 ± 1.5) V normal range (NR).NPN triode V2 is in saturation conduction state when generator normal power generation; When generator unloads load because dashing forward and makes generator output voltage suddenly more than 30V, V101 ends; When output voltage continues more than 35V again, the NPN triode V102 that demagnetization control circuit controls also ends rapidly; Such generator residue exciting curent will carry out afterflow by field winding L → the second diode D2 → load R2 → ground → the first diode D1 → field winding L, than the afterflow mode only by field winding L and the first diode D1 in traditional product, exciting curent declines and wants fast a lot, realize demagnetization, the rapid reduction due to excitatory stream returns in about 28.5V normal range (NR) by the output voltage of such generator fast.Demagnetization control circuit is made up of resistance R3 ~ R12, electric capacity C1 ~ C3, operational amplifier N, diode D3, voltage stabilizing didoe D4 and NPN triode V3, and the collector electrode of NPN triode V3 is connected with the base stage of the NPN triode V2 in demagnetization circuit shown in Fig. 2.Operational amplifier N and resistance R7, resistance R8 form a comparison circuit.The given reference voltage of operational amplifier N end of oppisite phase N2 takes from the dividing potential drop of+15V voltage after divider resistance R5 and R6, and it is changeless, operational amplifier N in-phase end N3 voltage takes from the dividing potential drop of generator output voltage after divider resistance R3 and R4, unload load once generator output voltage owing to dashing forward and be greater than 35V, the dividing potential drop of generator output voltage after divider resistance R3 and R4 is by higher than the dividing potential drop of+15V voltage after divider resistance R5 and R6, N1 is exported high level by the output of operational amplifier N, NPN triode V3 saturation conduction, the collector electrode of such NPN triode V3 is by output low level, NPN triode V2 in demagnetization circuit is also ended, generator exciting curent declines rapidly, generator output voltage reduces, until when the dividing potential drop of generator output voltage is less than the dividing potential drop of 15V fixed voltage, the output N1 output low level of operational amplifier N, NPN triode V3 ends, the control signal NPN-B1 signal that demagnetization control circuit exports is high level, NPN triode V102 recovers normal condition saturation conduction, completes demagnetization thus and controls.Control owing to invention increases demagnetization, generator output voltage when unloading load of dashing forward can be reduced in normal range (NR) fast, can meet the requirement of national military standard GJB181A-2003 the recovery time of voltage transient.
An embodiment of the present utility model: operational amplifier N can adopt LM158, F158 or FX158 chip.Empirical tests, operational amplifier N adopts FX158 chip, the utility model prominent unload load time, the time that generator output voltage returns to normal voltage range is no more than 80ms, meets the requirement of national military standard GJB181A-2003.
Claims (1)
1. an airborne DC generator control device excitation control circuit, comprise field winding L and the demagnetization circuit of DC generator, demagnetization circuit comprises the first electronic switch V1 and the first diode D1, first electronic switch V1 is a PNP triode, the emitter of this PNP triode connects the excitation voltage output of DC generator exciting circuit, the base stage of this PNP triode is connected with the first electronic switch V1 control signal output of DC generator control device, the collector electrode of this PNP triode is connected with one end of field winding L and the negative pole of the first diode D1 respectively, the plus earth of the first diode D1, it is characterized in that:
A, demagnetization circuit also comprise the second electronic switch V2 and the second diode D2, second electronic switch V2 is a NPN triode, the grounded emitter of this NPN triode, the collector electrode of this NPN triode is connected with the other end of field winding L and the positive pole of the second diode D2 respectively, and the negative pole of the second diode D2 connects the voltage output end of DC generator;
B, have a demagnetization control circuit, it is made up of bleeder circuit (1), comparison circuit (2) and front end circuit (3);
Bleeder circuit (1) is made up of resistance R3 ~ resistance R6, electric capacity C1 and C2; The voltage output end of the one termination DC generator of resistance R4, ground connection after the other end series resistance R3 of resistance R4, electric capacity C1 is attempted by the two ends of resistance R3, one end of resistance R5 is connected with the output of+15V voltage, ground connection after the other end series resistance R6 of resistance R5, electric capacity C2 is attempted by the two ends of resistance R6;
Comparison circuit (2) is made up of resistance R7 and R8, electric capacity C3 and operational amplifier N; One end of resistance R7 is connected with the series connection point of resistance R3 and resistance R4, the in-phase end N3 of another termination operational amplifier N of resistance R7, one end of resistance R8 is connected with the series connection point of resistance R5 and resistance R6, the end of oppisite phase N2 of another termination operational amplifier N of resistance R8, the earth terminal N4 ground connection of operational amplifier N, the power end N8 of operational amplifier N is connected with the output of+15V voltage, and electric capacity C3 is connected between the power end N8 of operational amplifier N and ground;
Front end circuit (3) is made up of diode D3, voltage stabilizing didoe D4, resistance R9 ~ resistance R12, NPN triode V3, the positive pole of diode D3 is connected with the reference voltage output terminal of DC generator control device, after the negative pole series resistance R9 of diode D3 respectively with the base stage of NPN triode V3, one end of resistance R10 is connected with one end of resistance R11, the other end of resistance R10 is connected with the positive pole of voltage stabilizing didoe D4, the negative pole of voltage stabilizing didoe D4 is connected with the output N1 of operational amplifier N, the resistance R11 other end is connected with the emitter of NPN triode V3, the two ends of resistance R12 are connected with the collector and emitter of NPN triode V3 respectively, the collector electrode of NPN triode V3 is connected with the base stage of the second electronic switch V2 in demagnetization circuit, the grounded emitter of NPN triode V3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793521.7U CN205051615U (en) | 2015-10-14 | 2015-10-14 | Machine carries dc generator controller control circuit that stimulates magnetism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793521.7U CN205051615U (en) | 2015-10-14 | 2015-10-14 | Machine carries dc generator controller control circuit that stimulates magnetism |
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| CN205051615U true CN205051615U (en) | 2016-02-24 |
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| CN201520793521.7U Active CN205051615U (en) | 2015-10-14 | 2015-10-14 | Machine carries dc generator controller control circuit that stimulates magnetism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612427A (en) * | 2021-07-30 | 2021-11-05 | 北京曙光航空电气有限责任公司 | Linear actuator control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612427A (en) * | 2021-07-30 | 2021-11-05 | 北京曙光航空电气有限责任公司 | Linear actuator control circuit |
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