CN202243055U - Improved electric vehicle control circuit - Google Patents
Improved electric vehicle control circuit Download PDFInfo
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- CN202243055U CN202243055U CN2011203719136U CN201120371913U CN202243055U CN 202243055 U CN202243055 U CN 202243055U CN 2011203719136 U CN2011203719136 U CN 2011203719136U CN 201120371913 U CN201120371913 U CN 201120371913U CN 202243055 U CN202243055 U CN 202243055U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model relates to an improved electric vehicle control circuit specially used in low and middle-grade electric vehicle industry and designed for regulating the speed of a direct current motor. The improved electric vehicle control circuit comprises a main control circuit, an auxiliary voltage stabilizing circuit, a level undervoltage setting circuit, a brake control circuit and a power driving and protection circuit, wherein the main control circuit is respectively connected with the auxiliary voltage stabilizing circuit, the level undervoltage setting circuit, the brake control circuit and the power driving and protection circuit; and the auxiliary voltage stabilizing circuit is respectively connected with the level undervoltage setting circuit and the brake control circuit. The improved electric vehicle control circuit has the benefits that the control power is high, the power scaling space is reserved, the external power supply voltage is high (the maximum is DC 75 V), the efficiency of conversion between the external power supply voltage and an internal control circuit power supply voltage is high, and the level undervoltage is randomly set to adapt to various kinds of levels.
Description
Technical field
The utility model relates in a kind of being exclusively used in, in the low-grade battery-driven car industry, be dc motor speed regulating design-calculated improved type electric vehicle control circuit.
Background technology
Along with the development of battery-driven car industry, on the market there be much the circuit of controller for electric vehicle, but maybe be for various reasons, generally speaking, they or many or have the problem of some designs and quality aspect less.Design redundancy like power controlling is big inadequately, causes the battery-driven car long-time running unreliable; Use the nominal voltage narrow range of level, the incompatibility high-voltage level; Voltage transitions efficient between controller inside, external high voltage power supply and the power supply of its control circuit is low, loss is big.
Summary of the invention
In view of deficiency and the Future Development trend that prior art exists, the utility model provides the improved type electric vehicle control circuit that a kind of power controlling is big, the externally fed voltage range is wide, voltage transitions efficient is high.
The utility model is for realizing above-mentioned purpose; The technical scheme of being taked is: a kind of improved type electric vehicle control circuit; It is characterized in that: comprise main control circuit, auxiliary mu balanced circuit, the under-voltage initialization circuit of level, brake control circuit, power drive and protective circuit; Said main control circuit is connected with auxiliary mu balanced circuit, the under-voltage initialization circuit of level, brake control circuit, power drive and protective circuit respectively, and said auxiliary mu balanced circuit is connected with the under-voltage initialization circuit of level, brake control circuit respectively;
In the said main control circuit; Resistance R 15 and capacitor C 17 parallel connections; The in-phase input end 1 pin IN1+ difference connecting resistance R14 of inner first error amplifier of control chip U3 and an end of resistance R 15; Another termination reference voltage terminal Vr of resistance R 14, another termination signal ground Gs of resistance R 15, resistance R 18 and capacitor C 6 parallel connections; An end of the inverting input 2 pin IN1-of first error amplifier difference connecting resistance R16, resistance R 18 and capacitor C 5 in the control chip U3; The end of the other end connecting resistance R17 of resistance R 16 and as speed-regulating signal input end Vsp, another termination signal ground Gs of resistance R 17, the other end of the phase control end 3 pin FB/Comp connecting resistance R18 of control chip U3; The other end of capacitor C 5 links to each other with the dead band level control end 4 pin D.T of control chip U3 and meets signal ground Gs; The oscillator electric capacity input end 5 pin Ct of control chip U3 meet signal ground Gs through capacitor C 8, and the oscillator resistor input end 6 pin Rt of control chip U3 meet signal ground Gs through resistance R 20, diode D3 and capacitor C 9 parallel connections; The positive pole of diode D3 meets the internally 7 pin GND of control chip U3; The negative pole of diode D3 meets signal ground Gs, and the collecting electrode 8 pin C1 of control chip U3 inside aerotron I link to each other with the collecting electrode 11 pin C2 of the inner aerotron II of control chip and chip power input end 12 pin and meet builtin voltage feeder ear Vcc, and builtin voltage feeder ear Vcc meets signal ground Gs through capacitor C 7; The emitter 9 pin E1 of the inner aerotron I of control chip U3 link to each other with the emitter 10 pin E2 of the inner aerotron II of control chip U3; The output control terminal 13 pin O.C of control chip U3 meet signal ground Gs, resistance R 12, resistance R 34 and capacitor C 3 parallel connections, control chip U3 internal reference voltage end 14 pin Vref respectively connecting resistance R13 and capacitor C 4 an end and as reference voltage terminal Vr; The other end of resistance R 13 connects an end of the control chip U3 second internal error amplifier's inverting input, 15 pin IN2-and resistance R 12 respectively, another termination signal ground Gs of resistance R 12 and capacitor C 4;
In the said auxiliary mu balanced circuit; Output end of pressure-stabilizing 1 pin of control chip U2 connects the negative pole of an end, diode D6 and the capacitor C 18 of inductance L 1 respectively; Output pump electric capacity coupling end 2 pin of control chip U2 connect the positive pole of capacitor C 18; Dead Time controlling resistance coupling end 3 pin of control chip U2 link to each other with ground terminal 4 pin of the positive pole of diode D6 and control chip U2 respectively through resistance R 33 and meet signal ground Gs; The feedback end 5 pin difference connecting resistance R31 of control chip U2 and an end of resistance R 32; The other end of resistance R 31 connects the other end of inductance L 1, the positive pole of capacitor C 14 respectively, and as builtin voltage feeder ear Vcc, the negative pole of capacitor C 14 links to each other with the other end of connecting resistance R32 and meets signal ground Gs; Output duty cycle time controlling resistance coupling end 6 pin of control chip U2 link to each other with the positive pole of chip power input end 8 pin of control chip U2, externally fed voltage+Vin, capacitor C 15 respectively through resistance R 30; The negative pole of capacitor C 15 links to each other with the positive pole of capacitor C 16, and reference voltage output end 7 pin of control chip U2 connect the positive pole of capacitor C 19, and the negative pole of the negative pole of capacitor C 19 and capacitor C 16 all meets signal ground Gs;
In the under-voltage initialization circuit of said level; The in-phase input end 5 pin difference connecting resistance R3 of amplifier U1B and an end of resistance R 5; Another termination reference voltage terminal Vr of resistance R 5; The end of the mouth 7 pin difference connecting resistance R4 of amplifier U1B, the other end of resistance R 3, the positive pole of another terminating diode D1 of resistance R 4, the negative pole of diode D1 meet the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the main control circuit; Inverting input 6 pin of amplifier U1B connect the positive pole of capacitor C 1, adjustable side 2 ends of adjustable potentiometer W respectively; The negative pole of capacitor C 1 meets signal ground Gs, and last fixed end 1 end of adjustable potentiometer W meets externally fed voltage+Vin through resistance R 1, and following fixed end 3 ends of adjustable potentiometer W meet signal ground Gs through resistance R 2;
In the said brake control circuit, an end of in-phase input end 3 pin of amplifier U1A difference connecting resistance R6 and resistance R 7, another termination reference voltage terminal Vr of resistance R 7; Another termination signal ground Gs of resistance R 6; Resistance R 11 and capacitor C 2 parallel connections, inverting input 2 pin of amplifier U1A are an end of connecting resistance R9, resistance R 10 and resistance R 11 respectively, another termination reference voltage terminal Vr of resistance R 10; Another termination brake signal input end Brake of resistance R 9; Another termination signal ground Gs of resistance R 11, mouth 1 pin of amplifier U1A connects the positive pole of diode D2 through resistance R 8, and the negative pole of diode D2 meets the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the main control circuit; Power input 8 pin of amplifier U1A meet builtin voltage feeder ear Vcc, and ground terminal 4 pin of amplifier U1A meet signal ground Gs;
In said power drive and the protective circuit; The positive pole of capacitor C 11 connect respectively capacitor C 10 an end and externally fed voltage+Vin, diode D5 negative pole and as the power supply output plus terminal M+ of motor load; The negative pole of capacitor C 11 connects the positive pole of capacitor C 12; The negative pole of capacitor C 12 links to each other with the other end of capacitor C 10 and meets Power Groud Gp; The positive pole of diode D5 connects the drain electrode of MOS aerotron T1, T2, T3 respectively and exports negative terminal M-as the power supply of motor load; An end of difference connecting resistance R26, resistance R 27, resistance R 28, resistance R 25, resistance R 29 after the source electrode of MOS aerotron T1, T2, T3 links to each other; Another termination Power Groud Gp of resistance R 29; The other end of resistance R 26 connects the grid of MOS aerotron T1 and an end of resistance R 21 respectively, and the other end of resistance R 27 connects the grid of MOS aerotron T2 and an end of resistance R 22 respectively, and the other end of resistance R 28 connects the grid of MOS aerotron T3 and an end of resistance R 23 respectively; The emitter of aerotron T4 connects negative pole and resistance R 21, the resistance R 22 of diode D4, the other end of resistance R 23 respectively; The positive pole of diode D4 meets the emitter 9 pin E1 of the inner aerotron 1 of control chip U3 in the end, main control circuit of base stage, the resistance R 19 of aerotron T4 respectively, and the collecting electrode of aerotron T4 links to each other with the other end of resistance R 19 and meets signal ground Gs, resistance R 24 and capacitor C 13 parallel connections; The in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the end of the other end difference connecting resistance R24 of resistance R 25, the main control circuit, another termination signal ground Gs of resistance R 24.
The beneficial effect of the utility model is: power controlling is big and leave the power expansion space; Externally fed voltage high (maximum DC75V); Conversion efficiency between externally fed voltage and internal control circuit power supply is high; Any setting that level is under-voltage adapts to multiple type of level.
Description of drawings
Fig. 1 is that the circuit of the utility model connects block diagram.
Fig. 2 is the schematic circuit diagram of the utility model.
The specific embodiment
Like Fig. 1, shown in 2; A kind of improved type electric vehicle control circuit; Comprise main control circuit, auxiliary mu balanced circuit, the under-voltage initialization circuit of level, brake control circuit, power drive and protective circuit; Main control circuit is connected with auxiliary mu balanced circuit, the under-voltage initialization circuit of level, brake control circuit, power drive and protective circuit respectively, and auxiliary mu balanced circuit is connected with the under-voltage initialization circuit of level, brake control circuit respectively;
Resistance R 15 and capacitor C 17 parallel connections in the main control circuit; The in-phase input end 1 pin IN1+ difference connecting resistance R14 of inner first error amplifier of control chip U3 and an end of resistance R 15; Another termination reference voltage terminal Vr of resistance R 14; Another termination signal ground Gs of resistance R 15; Resistance R 18 and capacitor C 6 parallel connections, the inverting input 2 pin IN1-of inner first error amplifier 1 of control chip U3 are an end of connecting resistance R16, resistance R 18 and capacitor C 5 respectively, the end of the other end connecting resistance R17 of resistance R 16 and as speed-regulating signal input end Vsp; Another termination signal ground Gs of resistance R 17; The other end of the phase control end 3 pin FB/Comp connecting resistance R18 of control chip U3, the other end of capacitor C 5 links to each other with the dead band level control end 4 pin D.T of control chip U3 and meets signal ground Gs, and the oscillator electric capacity input end 5 pin Ct of control chip U3 meet signal ground Gs through capacitor C 8; The oscillator resistor input end 6 pin Rt of control chip U3 meet signal ground Gs through resistance R 20; Diode D3 and capacitor C 9 parallel connections, the positive pole of diode D3 meet the internally 7 pin GND of control chip U3, and the negative pole of diode D3 meets signal ground Gs; The collecting electrode 8 pin C1 of control chip U3 inside aerotron I link to each other with the collecting electrode 11 pin C2 of the inner aerotron II of control chip and chip power input end 12 pin and meet builtin voltage feeder ear Vcc; Builtin voltage feeder ear Vcc meets signal ground Gs through capacitor C 7, and the emitter 9 pin E1 of the inner aerotron I of control chip U3 link to each other with the emitter 10 pin E2 of the inner aerotron II of control chip U3, and the output control terminal 13 pin O.C of control chip U3 meet signal ground Gs; Resistance R 12, resistance R 34 and capacitor C 3 parallel connections; Control chip U3 internal reference voltage end 14 pin Vref distinguish an end of connecting resistance R13 and capacitor C 4 and as reference voltage terminal Vr, the other end of resistance R 13 connects the inverting input 15 pin IN2-of inner second error amplifier of control chip U3 and an end of resistance R 12 respectively, another termination signal ground Gs of resistance R 12 and capacitor C 4;
Output end of pressure-stabilizing 1 pin of control chip U2 connects the negative pole of an end, diode D6 and the capacitor C 18 of inductance L 1 respectively in the auxiliary mu balanced circuit; Output pump electric capacity coupling end 2 pin of control chip U2 connect the positive pole of capacitor C 18; Dead Time controlling resistance coupling end 3 pin of control chip U2 link to each other with ground terminal 4 pin of the positive pole of diode D6 and control chip U2 respectively through resistance R 33 and meet signal ground Gs; The feedback end 5 pin difference connecting resistance R31 of control chip U2 and an end of resistance R 32; The other end of resistance R 31 connects the other end of inductance L 1, the positive pole of capacitor C 14 respectively; And as builtin voltage feeder ear Vcc; The negative pole of capacitor C 14 links to each other with the other end of connecting resistance R32 and meets signal ground Gs, and output duty cycle time controlling resistance coupling end 6 pin of control chip U2 link to each other with the positive pole of chip power input end 8 pin of control chip U2, externally fed voltage+Vin, capacitor C 15 respectively through resistance R 30, and the negative pole of capacitor C 15 links to each other with the positive pole of capacitor C 16; Reference voltage output end 7 pin of control chip U2 connect the positive pole of capacitor C 19, and the negative pole of the negative pole of capacitor C 19 and capacitor C 16 all meets signal ground Gs;
An end of in-phase input end 5 pin of amplifier U1B difference connecting resistance R3 and resistance R 5 in the under-voltage initialization circuit of level; Another termination reference voltage terminal Vr of resistance R 5; The end of the mouth 7 pin difference connecting resistance R4 of amplifier U1B, the other end of resistance R 3; The positive pole of another terminating diode D1 of resistance R 4; The negative pole of diode D1 meets the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the main control circuit, and inverting input 6 pin of amplifier U1B connect the positive pole of capacitor C 1, adjustable side 2 ends of adjustable potentiometer W respectively, and the negative pole of capacitor C 1 meets signal ground Gs; Last fixed end 1 end of adjustable potentiometer W meets externally fed voltage+Vin through resistance R 1, and following fixed end 3 ends of adjustable potentiometer W meet signal ground Gs through resistance R 2;
The in-phase input end 3 pin difference connecting resistance R6 of amplifier U1A and an end of resistance R 7 in the brake control circuit; Another termination reference voltage terminal Vr of resistance R 7, another termination signal ground Gs of resistance R 6, resistance R 11 and capacitor C 2 parallel connections; Inverting input 2 pin of amplifier U1A are an end of connecting resistance R9, resistance R 10 and resistance R 11 respectively; Another termination reference voltage terminal Vr of resistance R 10, another termination brake signal input end Brake of resistance R 9, another termination signal ground Gs of resistance R 11; Mouth 1 pin of amplifier U1A connects the positive pole of diode D2 through resistance R 8; The negative pole of diode D2 meets the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the main control circuit, and power input 8 pin of amplifier U1A meet builtin voltage feeder ear Vcc, and ground terminal 4 pin of amplifier U1A meet signal ground Gs;
In power drive and the protective circuit positive pole of capacitor C 11 connect respectively capacitor C 10 an end and externally fed voltage+Vin, diode D5 negative pole and as the power supply output plus terminal M+ of motor load; The negative pole of capacitor C 11 connects the positive pole of capacitor C 12; The negative pole of capacitor C 12 links to each other with the other end of capacitor C 10 and meets Power Groud Gp; The positive pole of diode D5 connects the drain electrode of MOS aerotron T1, T2, T3 respectively and exports negative terminal M-as the power supply of motor load; An end of difference connecting resistance R26, resistance R 27, resistance R 28, resistance R 25, resistance R 29 after the source electrode of MOS aerotron T1, T2, T3 links to each other; Another termination Power Groud Gp of resistance R 29; The other end of resistance R 26 connects the grid of MOS aerotron T1 and an end of resistance R 21 respectively; The other end of resistance R 27 connects the grid of MOS aerotron T2 and an end of resistance R 22 respectively; The other end of resistance R 28 connects the grid of MOS aerotron T3 and an end of resistance R 23 respectively, and the emitter of aerotron T4 connects negative pole and resistance R 21, the resistance R 22 of diode D4, the other end of resistance R 23 respectively, and the positive pole of diode D4 meets the emitter 9 pin E1 of the inner aerotron 1 of control chip U3 in the end, main control circuit of base stage, the resistance R 19 of aerotron T4 respectively; The collecting electrode of aerotron T4 links to each other with the other end of resistance R 19 and meets signal ground Gs; Resistance R 24 and capacitor C 13 parallel connections, the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the end of the other end difference connecting resistance R24 of resistance R 25, the main control circuit, another termination signal ground Gs of resistance R 24.
Have brush or brshless DC motor mostly to adopt the speed governing of PWM control method, the master control chip U3 of this control circuit has characteristics such as operating frequency range is wide, Dead Time is adjustable, the output power-handling capability is strong.This control chip cooperates with other control circuit, is used for accomplishing startup, operation, speed governing, the braking function of battery-driven car, and defencive function such as overload, under-voltage, speed limit.
Be stable control, reduce the fault rate and the vehicle repair rate of controller, reduce the phase mutual interference of each signal, control loop and loop of power circuit are independently of one another, take their own roads; Increase output driving circuit and partly walk cross-sectional area, reduce self watt loss; PCB adopts the multilayer layout, and reasonable line arrangement at utmost reduces oad; Select the components and parts of low noise, low temperature drift, stability and good reliability for use.
Principle of work
Master control chip U3 adopts TL494 PWM-type integrated manipulator, and its frequency of operation depends on outer timing resistor R20, the timing capacitor C8 on the oscillator that be connected on, and after their numerical value was fixing, the frequency of operation of TL494 output signal just immobilized.During work, can on capacitor C 8, produce frequency is the 1.1/R20*C8 sawtooth voltage.The outgoing level and the dead band control level of U3 internal error amplifier compare with sawtooth voltage respectively, obtain the rectangular pulse of certain width respectively, and after inner handled, two of control U3 inside drive the conducting of aerotrons or end.In this circuit, because the output control terminal 13 pin ground connection of U3 then form single-ended output.Simultaneously, for increasing output, inner two outputs of U3 are driven the aerotron parallel connection use.
From signals such as under-voltage, the brake in the under-voltage initialization circuit of level, brake control circuit and the current foldback circuit, overcurrents, deliver to in-phase input end 16 pin of the internal error amplifier 2 of master control chip U3, and then the output of control U3.
For obtaining bigger horsepower output; The output switch adopts three high-power MOS aerotron T1, T2 and T3 parallel waies; Simultaneously; Be to improve voltage conversioning rate, between the output of the public grid of MOS aerotron and master control chip U3, the charge discharging resisting loop that increase is made up of aerotron T4 and resistance R 19 etc.
In addition, because externally fed voltage+Vin is than higher, for raising the efficiency, reduce power consumption, this circuit employing minitype high voltage step-down bias switch voltage stabilizer LM5007, acquisition internal supply voltage Vcc.
Claims (1)
1. improved type electric vehicle control circuit; It is characterized in that: comprise main control circuit, auxiliary mu balanced circuit, the under-voltage initialization circuit of level, brake control circuit, power drive and protective circuit; Said main control circuit is connected with auxiliary mu balanced circuit, the under-voltage initialization circuit of level, brake control circuit, power drive and protective circuit respectively, and said auxiliary mu balanced circuit is connected with the under-voltage initialization circuit of level, brake control circuit respectively;
In the said main control circuit; Resistance R 15 and capacitor C 17 parallel connections; The in-phase input end 1 pin IN1+ difference connecting resistance R14 of inner first error amplifier of control chip U3 and an end of resistance R 15; Another termination reference voltage terminal Vr of resistance R 14, another termination signal ground Gs of resistance R 15, resistance R 18 and capacitor C 6 parallel connections; The inverting input 2 pin IN1-of inner first error amplifier of control chip U3 are an end of connecting resistance R16, resistance R 18 and capacitor C 5 respectively; The end of the other end connecting resistance R17 of resistance R 16 and as speed-regulating signal input end Vsp, another termination signal ground Gs of resistance R 17, the other end of the phase control end 3 pin FB/Comp connecting resistance R18 of control chip U3; The other end of capacitor C 5 links to each other with the dead band level control end 4 pin D.T of control chip U3 and meets signal ground Gs; The oscillator electric capacity input end 5 pin Ct of control chip U3 meet signal ground Gs through capacitor C 8, and the oscillator resistor input end 6 pin Rt of control chip U3 meet signal ground Gs through resistance R 20, diode D3 and capacitor C 9 parallel connections; The positive pole of diode D3 meets the internally 7 pin GND of control chip U3; The negative pole of diode D3 meets signal ground Gs, and the collecting electrode 8 pin C1 of control chip U3 inside aerotron I link to each other with the collecting electrode 11 pin C2 of the inner aerotron II of control chip and chip power input end 12 pin and meet builtin voltage feeder ear Vcc, and builtin voltage feeder ear Vcc meets signal ground Gs through capacitor C 7; The emitter 9 pin E1 of the inner aerotron I of control chip U3 link to each other with the emitter 10 pin E2 of the inner aerotron II of control chip U3; The output control terminal 13 pin O.C of control chip U3 meet signal ground Gs, resistance R 12, resistance R 34 and capacitor C 3 parallel connections, control chip U3 internal reference voltage end 14 pin Vref respectively connecting resistance R13 and capacitor C 4 an end and as reference voltage terminal Vr; The other end of resistance R 13 connects an end of the control chip U3 second internal error amplifier's inverting input, 15 pin IN2-and resistance R 12 respectively, another termination signal ground Gs of resistance R 12 and capacitor C 4;
In the said auxiliary mu balanced circuit; Output end of pressure-stabilizing 1 pin of control chip U2 connects the negative pole of an end, diode D6 and the capacitor C 18 of inductance L 1 respectively; Output pump electric capacity coupling end 2 pin of control chip U2 connect the positive pole of capacitor C 18; Dead Time controlling resistance coupling end 3 pin of control chip U2 link to each other with ground terminal 4 pin of the positive pole of diode D6 and control chip U2 respectively through resistance R 33 and meet signal ground Gs; The feedback end 5 pin difference connecting resistance R31 of control chip U2 and an end of resistance R 32; The other end of resistance R 31 connects the other end of inductance L 1, the positive pole of capacitor C 14 respectively, and as builtin voltage feeder ear Vcc, the negative pole of capacitor C 14 links to each other with the other end of connecting resistance R32 and meets signal ground Gs; Output duty cycle time controlling resistance coupling end 6 pin of control chip U2 link to each other with the positive pole of chip power input end 8 pin of control chip U2, externally fed voltage+Vin, capacitor C 15 respectively through resistance R 30; The negative pole of capacitor C 15 links to each other with the positive pole of capacitor C 16, and reference voltage output end 7 pin of control chip U2 connect the positive pole of capacitor C 19, and the negative pole of the negative pole of capacitor C 19 and capacitor C 16 all meets signal ground Gs;
In the under-voltage initialization circuit of said level; The in-phase input end 5 pin difference connecting resistance R3 of amplifier U1B and an end of resistance R 5; Another termination reference voltage terminal Vr of resistance R 5; The end of the mouth 7 pin difference connecting resistance R4 of amplifier U1B, the other end of resistance R 3, the positive pole of another terminating diode D1 of resistance R 4, the negative pole of diode D1 meet the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the main control circuit; Inverting input 6 pin of amplifier U1B connect the positive pole of capacitor C 1, adjustable side 2 ends of adjustable potentiometer W respectively; The negative pole of capacitor C 1 meets signal ground Gs, and last fixed end 1 end of adjustable potentiometer W meets externally fed voltage+Vin through resistance R 1, and following fixed end 3 ends of adjustable potentiometer W meet signal ground Gs through resistance R 2;
In the said brake control circuit, an end of in-phase input end 3 pin of amplifier U1A difference connecting resistance R6 and resistance R 7, another termination reference voltage terminal Vr of resistance R 7; Another termination signal ground Gs of resistance R 6; Resistance R 11 and capacitor C 2 parallel connections, inverting input 2 pin of amplifier U1A are an end of connecting resistance R9, resistance R 10 and resistance R 11 respectively, another termination reference voltage terminal Vr of resistance R 10; Another termination brake signal input end Brake of resistance R 9; Another termination signal ground Gs of resistance R 11, mouth 1 pin of amplifier U1A connects the positive pole of diode D2 through resistance R 8, and the negative pole of diode D2 meets the in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the main control circuit; Power input 8 pin of amplifier U1A meet builtin voltage feeder ear Vcc, and ground terminal 4 pin of amplifier U1A meet signal ground Gs;
In said power drive and the protective circuit; The positive pole of capacitor C 11 connect respectively capacitor C 10 an end and externally fed voltage+Vin, diode D5 negative pole and as the power supply output plus terminal M+ of motor load; The negative pole of capacitor C 11 connects the positive pole of capacitor C 12; The negative pole of capacitor C 12 links to each other with the other end of capacitor C 10 and meets Power Groud Gp; The positive pole of diode D5 connects the drain electrode of MOS aerotron T1, T2, T3 respectively and exports negative terminal M-as the power supply of motor load; An end of difference connecting resistance R26, resistance R 27, resistance R 28, resistance R 25, resistance R 29 after the source electrode of MOS aerotron T1, T2, T3 links to each other; Another termination Power Groud Gp of resistance R 29; The other end of resistance R 26 connects the grid of MOS aerotron T1 and an end of resistance R 21 respectively, and the other end of resistance R 27 connects the grid of MOS aerotron T2 and an end of resistance R 22 respectively, and the other end of resistance R 28 connects the grid of MOS aerotron T3 and an end of resistance R 23 respectively; The emitter of aerotron T4 connects negative pole and resistance R 21, the resistance R 22 of diode D4, the other end of resistance R 23 respectively; The positive pole of diode D4 meets the emitter 9 pin E1 of the inner aerotron 1 of control chip U3 in the end, main control circuit of base stage, the resistance R 19 of aerotron T4 respectively, and the collecting electrode of aerotron T4 links to each other with the other end of resistance R 19 and meets signal ground Gs, resistance R 24 and capacitor C 13 parallel connections; The in-phase input end 16 pin IN2+ of control chip U3 internal error amplifier 2 in the end of the other end difference connecting resistance R24 of resistance R 25, the main control circuit, another termination signal ground Gs of resistance R 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203719136U CN202243055U (en) | 2011-09-27 | 2011-09-27 | Improved electric vehicle control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203719136U CN202243055U (en) | 2011-09-27 | 2011-09-27 | Improved electric vehicle control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN202243055U true CN202243055U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203719136U Withdrawn - After Issue CN202243055U (en) | 2011-09-27 | 2011-09-27 | Improved electric vehicle control circuit |
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| CN (1) | CN202243055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358209A (en) * | 2011-09-27 | 2012-02-22 | 东文高压电源（天津）有限公司 | Improved control circuit for electric vehicle |
| CN103633851A (en) * | 2013-12-19 | 2014-03-12 | 东文高压电源（天津）有限公司 | Voltage-adjustable current-adjustable high-performance positive laser power supply circuit composed of 555 |
-
2011
- 2011-09-27 CN CN2011203719136U patent/CN202243055U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358209A (en) * | 2011-09-27 | 2012-02-22 | 东文高压电源（天津）有限公司 | Improved control circuit for electric vehicle |
| CN102358209B (en) * | 2011-09-27 | 2013-03-13 | 东文高压电源（天津）有限公司 | Improved control circuit for electric vehicle |
| CN103633851A (en) * | 2013-12-19 | 2014-03-12 | 东文高压电源（天津）有限公司 | Voltage-adjustable current-adjustable high-performance positive laser power supply circuit composed of 555 |
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