CN108054963A - A kind of performance stable DC motivation governing system - Google Patents

A kind of performance stable DC motivation governing system Download PDF

Info

Publication number
CN108054963A
CN108054963A CN201810004280.1A CN201810004280A CN108054963A CN 108054963 A CN108054963 A CN 108054963A CN 201810004280 A CN201810004280 A CN 201810004280A CN 108054963 A CN108054963 A CN 108054963A
Authority
CN
China
Prior art keywords
resistance
triode
collector
pins
poles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810004280.1A
Other languages
Chinese (zh)
Inventor
王前明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan New Technology Co Ltd For Flooding
Original Assignee
Sichuan New Technology Co Ltd For Flooding
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan New Technology Co Ltd For Flooding filed Critical Sichuan New Technology Co Ltd For Flooding
Priority to CN201810004280.1A priority Critical patent/CN108054963A/en
Publication of CN108054963A publication Critical patent/CN108054963A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0856—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load characterised by the protection measure taken
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

The invention discloses a kind of performance stable DC motivation governing systems; it is characterized in that; including controlling chip U; pulse-width modulation circuit; three collection tube drive circuits; collect the overload protecting circuit that tube drive circuits are connected and the regulating circuit being connected respectively with three collection tube drive circuits and overload protecting circuit with the R pins and three for controlling chip U respectively.The configuration of the present invention is simple, it is highly practical, the pulse-width modulation circuit that the present invention is set can continuously be adjusted the duty cycle for exporting pulse, sufficiently pulsewidth is adjusted, without influencing frequency of oscillation, the duty cycle of pulse is made to reach 99.99%, ensures that the present invention can export the duty cycle of high impulse, solves the problems, such as that pulse width modulator is relatively low in the presence of the duty cycle of output square wave well.

Description

A kind of performance stable DC motivation governing system
Technical field
The present invention relates to a kind of governing system, in particular to a kind of performance stable DC motivation governing systems.
Background technology
Dc motor is a kind of motor that direct current energy is converted to mechanical energy, due to its good speed adjusting performance It is used widely in Electric Traction.Dc motor is then to realize speed governing, pulse width modulator by pulse width modulator Full name be:Pulse WidthModulator, abbreviation PWM.Pulse width modulator is made by changing the duty cycle of output square wave Average current power in load changes from 0-100%, so as to change the speed of dc motor.
However, the duty cycle of the output square wave of pulse width modulator is mostly left 50% used by existing dc motor It is right, that is to say, that the energy work rate of pulse width modulator output also only has 50% or so, and therefore, existing dc motor is used Pulse width modulator do not only exist output square wave duty cycle it is relatively low, also asking there are fragile and output voltage stability difference Topic, the power for causing dc motor is too low, and dc motor energy work rate is caused to be not fully utilized, so as to existing arteries and veins Wide modulator can not meet the needs of people.
The content of the invention
Pulse width modulator does not only exist output side used by it is an object of the invention to overcome existing dc motor The duty cycle of ripple is relatively low, also there are fragile and output voltage stability it is poor the defects of, a kind of performance stable DC is provided Motivation governing system.
The purpose of the present invention passes through following technical proposals reality：A kind of performance stable DC motivation governing system, bag Control chip U is included, the pulse-width modulation circuit being connected respectively with the UCC pins and DIS pins and T pins for controlling chip U, point Three collection tube drive circuits not being connected with the R pins and F pins and GND pins for controlling chip U, respectively with controlling chip U R pins and three overload protecting circuits that are connected of collection tube drive circuits and respectively with three collection tube drive circuits and overload guarantor The regulating circuit that protection circuit is connected；The GND pins ground connection of the control chip U.
The regulating circuit includes triode Q5, emitter phase of triode Q4, the N pole after resistance R12 with triode Q5 Connection, the diode D6 that is connected with overload protecting circuit of P poles, one end is connected with the N poles of diode D6, the other end and three poles The inductance L2 that the collector of pipe Q4 is connected, anode is connected after resistance R13 with the base stage of triode Q5, cathode and triode The polar capacitor C6 that the collector of Q4 is connected, anode is connected with the collector of triode Q5, the base of cathode and triode Q4 The polar capacitor C5 and P poles that pole is connected are connected with the emitter of triode Q4, N poles after resistance R11 with triode Q5 The diode D5 that is connected of base stage；The N poles of the diode D5 are connected with three collection tube drive circuits；The triode Q4's The output terminal of regulating circuit is collectively formed in the N poles of collector and diode D5.
The overload protecting circuit includes triode Q3, and cathode is connected with the collector of triode Q3, anode is through inductance With controlling the polar capacitor C3 that is connected of R pins of chip U after L1, one end is connected with three collection tube drive circuits, the other end and Resistance R8, the P pole that the collector of triode Q3 is connected is connected after resistance R9 with the collector of triode Q3, N poles and three The diode D4 that the emitter of pole pipe Q3 is grounded after being connected, wherein one end are connected with the base stage of triode Q3, the other end with The capacitance C4 and one end that the collector of triode Q4 is connected are connected with the emitter of triode Q3, the other end and two poles The resistance R10 that the P poles of pipe D6 are connected.
Further, the pulse-width modulation circuit include one end with control chip U UCC pins be connected, the other end and Resistance R1, the N pole that the DIS pins of control chip U are connected is connected after resistance R2 with the DIS pins of control chip U, P poles Diode D2, the P pole of ground connection is with controlling the DIS pins of chip U to be connected, P pole of the N poles after adjustable resistance R3 with diode D2 The diode D1 that is connected and wherein one end are connected after adjustable resistance R4 with the adjustable side of adjustable resistance R3, the other end The capacitance C1 of ground connection；The T pins of the control chip U are connected with the adjustable side of adjustable resistance R4.
Further, the three collection tube drive circuit includes three collector Q1, three collector Q2, one end and the base of three collector Q2 Pole is connected, the other end is connected with resistance R5, the P pole that the F pins of control chip U are connected with the F pins of control chip U, N The diode D3 that pole is connected after resistance R6 with the emitter of three collector Q2, anode is connected with the collector of three collector Q1, The polar capacitor C2 and one end that cathode is connected with the N poles of diode D3 are connected with the cathode of polar capacitor C2, the other end The resistance R7 being connected with the GND pins for controlling chip U；The emitter of the three collectors Q1 is with controlling the R pins of chip U to be connected It connects, the base stage of three collector Q1 is connected with the collector of three collector Q2；The N poles ground connection of the diode D3；Three collector Collector of the collector of Q1 with triode Q3 after resistance R8 is connected, and the GND pins of the control chip U are through resistance R10 The emitter with triode Q3 is connected afterwards.
Further, the resistance R1 be diode D1 forward resistance, resistance R1=resistance R2=1k Ω；It is described Adjustable resistance R3 ＞ resistance R1 and resistance R2, and adjustable resistance R3=10M.It is described to control chip U as NE555 integrated chips.
The present invention has the following advantages compared with prior art and advantageous effect：
(1) the configuration of the present invention is simple, highly practical, the pulse-width modulation circuit that the present invention is set can be to the duty of output pulse Than continuously being adjusted, i.e., sufficiently pulsewidth is adjusted, without influencing frequency of oscillation, reaches the duty cycle of pulse 99.99%, it ensures that the present invention can export the duty cycle of high impulse, solves pulse width modulator well and there is output side The problem of duty cycle of ripple is relatively low.
(2) regulating circuit that sets of the present invention can be adjusted the intensity of the voltage of output, make output voltage it is strong Degree remains unchanged, so that it is guaranteed that the present invention can accurately control the rotating speed of motor.
(3) overload protecting circuit that sets of the present invention can be when the load of motor increases, i.e. the armature supply of motor During increase, three collection tube drive circuits are effectively protected, so as to ensure the reliability of the present invention well.
(4) the three collection tube drive circuits that the present invention is set realize accurately controlling for the keying to dc motor.
Description of the drawings
Fig. 1 is the integrated circuit structure diagram of the present invention.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention are not limited to This.
Embodiment
As shown in Figure 1, the invention discloses a kind of performance stable DC motivation governing system, including controlling chip U, The pulse-width modulation circuit being connected respectively with the UCC pins and DIS pins and T pins for controlling chip U, respectively with controlling chip The three collection tube drive circuits that the R pins of U are connected with F pins and GND pins, collect respectively with the R pins and three for controlling chip U Overload protecting circuit that tube drive circuit is connected and respectively it is connected with three collection tube drive circuits and overload protecting circuit Regulating circuit；The GND pins ground connection of the control chip U.
Control chip U in the present embodiment, which is preferentially employed, has the function of the NE555 integrated chips of pulse generation to realize, Control chip U is combined with pulse-width modulation circuit, the duty cycle of output pulse can be made continuously to be adjusted, i.e., pulsewidth obtains Sufficiently adjustment, the frequency of oscillation without influencing control chip U, makes the duty cycle of pulse reach 99.99%.
Further, the pulse-width modulation circuit includes resistance R1, resistance R2, adjustable resistance R3, adjustable resistance R4, two poles Pipe D1, diode D2 and capacitance C1.
During connection, one end of resistance R1 is with controlling the UCC pins of chip U to be connected, the DIS of the other end and control chip U Pin is connected.With the DIS pins of chip U is controlled to be connected after resistance R2, P poles are grounded for the N poles of diode D2.Diode D1 P poles with control chip U DIS pins be connected, N poles are connected after adjustable resistance R3 with the P poles of diode D2.Capacitance C1 Adjustable side of the wherein one end with adjustable resistance R3 after adjustable resistance R4 be connected, other end ground connection.The control chip U's T pins are connected with the adjustable side of adjustable resistance R4.
Wherein, the resistance R1 be diode D1 forward resistance, resistance R1=resistance R2=1k Ω；The adjustable electric Resistance R3 ＞ resistance R1 and resistance R2, and adjustable resistance R3=10M, and auxiliary resistances of the adjustable resistance R4 as adjustable resistance R3, Its resistance value should be less than the resistance value of adjustable resistance R3, and the resistance value that employs of adjustable resistance R4 is realized for the potentiometer of 1M；Its capacitance Energy-storage travelling wave tubes of the C1 as this circuit, capacitance are then preferentially set as 0.1 μ F.
Further, the three collection tube drive circuit includes three collector Q1, three collector Q2, resistance R5, resistance R6, resistance R7, polar capacitor C2 and diode D3.
During connection, one end of resistance R5 is connected with the base stage of three collector Q2, the other end and the F pin phases for controlling chip U Connection.The P poles of diode D3 are with controlling the F pins of chip U to be connected, emitter phase of the N poles after resistance R6 with three collector Q2 Connection.The anode of polar capacitor C2 is connected with the collector of three collector Q1, and cathode is connected with the N poles of diode D3.Resistance One end of R7 is connected with the cathode of polar capacitor C2, and the other end is with controlling the GND pins of chip U to be connected.
The emitter of the three collectors Q1 is with controlling the R pins of chip U to be connected, base stage and three collectors of three collector Q1 The collector of Q2 is connected；The N poles ground connection of the diode D3；The collector of the three collectors Q1 after resistance R8 with triode The collector of Q3 is connected, and the emitter for controlling the GND pins of chip U with triode Q3 after resistance R10 is connected.
Three collector Q1 in the present embodiment employ the amplifier tube of model 3AX81 to realize, and three collector Q2 are then preferential Employ 3DG12；Meanwhile the resistance value of resistance R5 is set as 4.7k Ω, the resistance value of resistance R6 is set as 47k Ω, resistance R7 conducts Shut off resistance, and resistance value is set as 10k Ω；Polar capacitor C2 is as triggering capacitor, for 2200 μ F charge and discharge of high capacitance Hold；Diode D3 then preferentially employs the switching tube of 1N4148.
Further, as shown in Figure 1, the overload protecting circuit includes triode Q3, resistance R8, resistance R9, resistance R10, inductance L1, polar capacitor C3, capacitance C4 and diode D4.
During connection, the cathode of polar capacitor C3 is connected with the collector of triode Q3, anode after inductance L1 with control The R pins of chip U are connected.One end of resistance R8 is connected with three collection tube drive circuits, the current collection of the other end and triode Q3 Pole is connected.
Meanwhile collector of the P poles of diode D4 with triode Q3 after resistance R9 is connected, N poles are with triode Q3's Emitter is grounded after being connected.Wherein one end of capacitance C4 is connected with the base stage of triode Q3, and the other end is with triode Q3's Collector is connected.One end of resistance R10 is connected with the emitter of triode Q3, and the other end is extremely connected with the P of diode D6 It connects.During implementation, capacitance C4 and resistance R10 are connected respectively with motor.
Triode Q3 in the present embodiment preferentially employs 3DG12；The resistance value of resistance R8 is set as 4.7k Ω, resistance R9's Resistance value is set as 4k Ω, and the resistance value of resistance R10 is set as 1k Ω；The inductance value of inductance L1 is set as 50 μ H；Polar capacitor C3's Capacitance is set as 2.2 μ F, and the capacitance of capacitance C4 is set as that 22 μ F, diode D4 then preferentially employ 1N4018 to realize.Wherein, Resistance R9 and resistance R10 are as sample resistance.
Operationally, when the load of motor increases, resistance R9 and resistance R10 start to be depressured the circuit, the electricity of inductance L1 Position declines, triode Q3 conductings, and the F pins of chip U is controlled to export and are turned off for 0V, triode Q1 and triode Q2, motor Voltage be turned off.When the load of motor reduces, the current potential of inductance L1 rises, and it is 1V that the F pins of chip U is controlled, which to export, Triode Q1 and triode Q2 are both turned on, and the voltage of motor is switched on, and motor keeps running well.So as to effectively prevent During the load increase of motor, puncture Q2 times of triode Q1 and triode, ensure the reliable of the system work well Property.
Finally, as shown in Figure 1, the regulating circuit includes triode Q4, triode Q5, resistance R11, resistance R12, resistance R13, polar capacitor C5, polar capacitor C6, diode D6, diode D5 and inductance L2.Wherein three collector Q5 employ model It is realized for the amplifier tube of 3AX81, and three collector Q4 then preferentially employ 3DG12；The resistance value of resistance R11 and resistance R13 are set For 10k Ω, the resistance value of resistance R12 is set as 4k Ω；The capacitance of polar capacitor C5 and polar capacitor C6 are set as 200 μ F；And Diode D6 and diode D5 employs the oscillating tube of model 1N4028 to realize.
During connection, the emitter of the N poles of diode D6 with triode Q5 after resistance R12 is connected, and P poles are driven with three collectors Dynamic circuit is connected.One end of inductance L2 is connected with the N poles of diode D6, and the other end is connected with the collector of triode Q4 It connects.Base stage of the anode of polar capacitor C6 with triode Q5 after resistance R13 is connected, the collector phase of cathode and triode Q4 Connection.
Meanwhile the anode of polar capacitor C5 is connected with the collector of triode Q5, the base stage phase of cathode and triode Q4 Connection.The P poles of diode D5 are connected with the emitter of triode Q4, and base stage of the N poles with triode Q5 after resistance R11 is connected It connects.The N poles of the diode D5 are connected with three collection tube drive circuits；The collector of the triode Q4 and the N of diode D5 Pole is collectively formed the output terminal of regulating circuit and is connected with the power connection end of motor.
Operationally, after three collection tube drive circuit output voltages, triode Q5 connects voltage to the regulating circuit because of resistance R11 Cathode, and polar capacitor C6 both end voltages cannot be mutated.Current potential in the base stage of triode Q5 is less than the current potential on collector, and three Pole pipe Q5 is turned on, and because there is electric discharge on polar capacitor C5, triode Q4 is also switched on the base stage of triode Q4, and electric current is passed through from positive pole Inductance L2, the emitter of triode Q4 are loaded into the P poles of diode D5, turn on diode D, power supply is made to hold inductance L2 Continuous charging, inductance L2 storage energy, the self induction electromotive force on inductance L2 are left positive right negative.
Meanwhile the base potential of triode Q5 is lower than transmitting electrode potential at this time, triode Q enters depth saturation state, Triode Q4 is also into depth saturation state simultaneously, with charging of the power supply to polar capacitor C6, polar capacitor C6 both end voltages It gradually rises, i.e. the current potential of the base stage of triode Q5 is gradually increasing, and Ib1 is gradually reduced, and triode Q5 exits saturation region, triode Q4 also exits saturation region, and the charging current of inductance L2 is reduced.At this point, the self induction electromotive force on inductance L2 is becoming the left negative right side just, Q5 base potentials are further up, and triode Q5 ends rapidly, and triode Q4 is also switched off, the energy release stored on inductance L2, Achieve the purpose that the stable voltage of output.
During implementation, resistance R1, diode D1, adjustable resistance R3 and capacitance C1 and control in the pulse-width modulation circuit The UCC pins of chip U form the charge circuit of a pulse generation, and the charging time of the charge circuit is t0, t0=In2 (R1+D1+R3) C, and because of the forward resistance that resistance R1 is diode D1, the resistance value of resistance R1 is smaller, makes t0≈0.693(R1+ R2)C.Be then anode with the connecting pin of adjustable resistance R4 after capacitance C1 completes to charge, capacitance C1 and with adjustable resistance R4 Resistance R2 diodes D2 forms electric discharge meeting road, turns on the discharge tube in control chip U, and DIS pins are grounded, therefore institute is at this time Discharge time be t1, t1≈0.693(R4+R2)C.Therefore, the vibration week for controlling chip U is T, T=t0+t1≈0.693 (R3+R4+R1+R2) C=0.693 (R3+R1+R2) C.
The resistance R1 be diode D1 forward resistance, resistance R1=resistance R2=1k Ω；The adjustable resistance R3 ＞ resistance R1 and resistance R2, and adjustable resistance R3=10M, therefore pulse duty factor is can obtain as D, D=t1÷ T=(R1+ R3)÷(R4+R1+R2).As R4=0, D=R1/ (R4+R1+R2) ≈ R1/R4=0.01%；As R3=0, R3 becomes R4, Pulse duty factor at this time is D=R1+R4/ (R4+R1+R2)=99.99%.Meanwhile adjustable resistance R3 and adjustable resistance R4 phases It can be realized after cooperation and pulse duty factor is continuously adjusted.
When the adjustable side of adjustable resistance R3 is slided to the left, pulse duty factor D reduces, i.e. the wide reduction of positive pulse, controls core The average value of piece U outputs becomes smaller, motor deceleration；When the adjustable side of adjustable resistance R3 is slided to the right, pulse duty factor D increases Greatly, i.e. the wide increase of positive pulse, the average value of control chip U outputs become larger, and motor accelerates.
R3 in its above-mentioned formula is adjustable resistance R3, and R4 is adjustable resistance R4, and R1 is resistance R1, and R2 is for resistance R2, C1 Capacitance C1, D1 are diode D1, and D2 is diode D2.
During carrying out practically, when the F pins for controlling chip U be 1V it is high usually, three collector Q1 conductings, the base stage of three collector Q2 It for low level, is also turned on, makes energizing DC motor, motor accelerates；Meanwhile polar capacitor C2 is started to charge up.Work as control When the F pins of chip U are 0V low levels, three collector Q1 cut-offs, three collector Q2 are also switched off, the power supply of dc motor are cut simultaneously Disconnected, dc motor is by the energy storage rotation of coherence and polar capacitor C2, dc motor deceleration at this time.
As described above, the present invention can be realized well.

Claims (7)

1. a kind of performance stable DC motivation governing system, which is characterized in that including controlling chip U, respectively with controlling core The pulse-width modulation circuit that the UCC pins of piece U are connected with DIS pins and T pins, respectively with control chip U R pins and F The three collection tube drive circuits that pin and GND pins are connected, collect tube drive circuits with the R pins and three for controlling chip U respectively The overload protecting circuit being connected and the regulating circuit being connected respectively with three collection tube drive circuits and overload protecting circuit； The GND pins ground connection of the control chip U.
2. a kind of performance stable DC motivation governing system according to claim 1, it is characterised in that：The pressure regulation Circuit includes triode Q5, and triode Q4, N pole is connected after resistance R12 with the emitter of triode Q5, P poles are protected with overload The diode D6 that protection circuit is connected, one end is connected with the N poles of diode D6, the other end is connected with the collector of triode Q4 The inductance L2 connect, anode is connected after resistance R13 with the base stage of triode Q5, cathode is connected with the collector of triode Q4 Polar capacitor C6, anode is connected with the collector of triode Q5, cathode is connected with the base stage of triode Q4 polarity electricity Appearance C5 and P poles are connected with the emitter of triode Q4, two that N poles are connected after resistance R11 with the base stage of triode Q5 Pole pipe D5；The N poles of the diode D5 are connected with three collection tube drive circuits；The collector of the triode Q4 and diode D5 N poles the output terminal of regulating circuit is collectively formed.
3. a kind of performance stable DC motivation governing system according to claim 2, it is characterised in that：The overload Circuit is protected to include triode Q3, cathode is connected with the collector of triode Q3, anode after inductance L1 with controlling chip U The polar capacitor C3 that R pins are connected, one end is connected with three collection tube drive circuits, the collector phase of the other end and triode Q3 Resistance R8, the P pole of connection is connected after resistance R9 with the collector of triode Q3, N poles are connected with the emitter of triode Q3 The diode D4 being grounded after connecing, wherein one end are connected with the base stage of triode Q3, the collector phase of the other end and triode Q4 The electricity that the capacitance C4 of connection and one end are connected with the emitter of triode Q3, the other end is connected with the P poles of diode D6 Hinder R10.
4. a kind of performance stable DC motivation governing system according to claim 3, it is characterised in that：The pulsewidth Modulation circuit includes one end and the UCC pins of chip U is controlled to be connected, the other end is connected with controlling the DIS pins of chip U Resistance R1, N pole is after resistance R2 with controlling diode D2, the P pole and control core that the DIS pins of chip U are connected, P poles are grounded The DIS pins of piece U are connected, N poles are connected after adjustable resistance R3 with the P poles of diode D2 diode D1 and wherein One end is connected after adjustable resistance R4 with the adjustable side of adjustable resistance R3, the capacitance C1 of other end ground connection；The control chip U T pins be connected with the adjustable side of adjustable resistance R4.
5. a kind of performance stable DC motivation governing system according to claim 4, it is characterised in that：Three collection Tube drive circuit includes three collector Q1, three collector Q2, and one end is connected with the base stage of three collector Q2, the other end is with controlling chip U Resistance R5, the P pole that is connected of F pins with the F pins of chip U is controlled to be connected, hair of the N poles after resistance R6 with three collector Q2 The diode D3 that emitter-base bandgap grading is connected, anode is connected with the collector of three collector Q1, cathode is connected with the N poles of diode D3 Polar capacitor C2 and one end are connected with the cathode of polar capacitor C2, the other end is with controlling the GND pins of chip U to be connected Resistance R7；The emitter of the three collectors Q1 is with controlling the R pins of chip U to be connected, the base stage of three collector Q1 and three collection The collector of pipe Q2 is connected；The N poles ground connection of the diode D3；The collector of the three collectors Q1 after resistance R8 with three poles The collector of pipe Q3 is connected, and the emitter for controlling the GND pins of chip U with triode Q3 after resistance R10 is connected.
6. a kind of performance stable DC motivation governing system according to claim 5, it is characterised in that：The resistance R1 be diode D1 forward resistance, resistance R1=resistance R2=1k Ω；The adjustable resistance R3 ＞ resistance R1 and resistance R2, And adjustable resistance R3=10M.
7. a kind of performance stable DC motivation governing system according to claim 6, it is characterised in that：The control Chip U is NE555 integrated chips.
CN201810004280.1A 2018-01-03 2018-01-03 A kind of performance stable DC motivation governing system Pending CN108054963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810004280.1A CN108054963A (en) 2018-01-03 2018-01-03 A kind of performance stable DC motivation governing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810004280.1A CN108054963A (en) 2018-01-03 2018-01-03 A kind of performance stable DC motivation governing system

Publications (1)

Publication Number Publication Date
CN108054963A true CN108054963A (en) 2018-05-18

Family

ID=62126182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810004280.1A Pending CN108054963A (en) 2018-01-03 2018-01-03 A kind of performance stable DC motivation governing system

Country Status (1)

Country Link
CN (1) CN108054963A (en)

Similar Documents

Publication Publication Date Title
CN106787088A (en) It is applied to the self powered supply management circuit of discontinuous piezoelectric energy acquisition system
CN203788203U (en) PWM double closed-loop electric bicycle speed regulation control system
CN108054963A (en) A kind of performance stable DC motivation governing system
CN101656501B (en) Motor starting circuit
CN107947655A (en) A kind of DC motor speed-regulating system with buffering protection function
CN203775499U (en) LED (light-emitting diode) pulse drive circuit
CN201044407Y (en) Internal-combustion direct-current arc welding power generation dual-purpose machine
CN108075700A (en) A kind of DC motor speed-regulating system with voltage regulation function
CN108054964A (en) A kind of voltage adjustable DC motor speed-regulating system
CN201854235U (en) Simple speed regulation control circuit of PWM (pulse width modulation) DC motor
CN205160375U (en) Export power supply's on -off control device
CN107994823A (en) A kind of DC motor speed-regulating system
CN107947654A (en) A kind of DC motor speed-regulating system with overload protection function
CN107947653A (en) A kind of DC motor speed-regulating system with double defencive functions
CN106452063A (en) Power source control circuit of automobile inverter
CN201332358Y (en) Motor startup circuit
CN204527065U (en) A kind of vehicle power regulator circuit
CN207134132U (en) Improve buzzer loudness and reduce the circuit of buzzer and drive circuit interference power
CN206686079U (en) Booster circuit
CN204652206U (en) A kind of power-switching circuit
CN212305169U (en) DC power supply for energy consumption braking
CN103780178A (en) Permanent magnet generator and voltage regulator
CN205141999U (en) Adjustable negative pressure DC -DC converter
CN206004567U (en) A kind of mild wind power generation control circuit
CN203243585U (en) Solid-state laser power source capable of outputting square wave pulse current

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180518