CN207743906U - A kind of motor-drive circuit with driving tube defencive function - Google Patents
A kind of motor-drive circuit with driving tube defencive function Download PDFInfo
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- CN207743906U CN207743906U CN201721701164.2U CN201721701164U CN207743906U CN 207743906 U CN207743906 U CN 207743906U CN 201721701164 U CN201721701164 U CN 201721701164U CN 207743906 U CN207743906 U CN 207743906U
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Abstract
The utility model discloses a kind of motor-drive circuits with driving tube defencive function; it is provided with motor M, driving circuit, tri-state gate circuit, protection circuit and termination power; it is provided with coupler VLC2 and coupler VLC4 in the protection circuit; the anode of diode connects the collector of phototriode in coupler VLC2 in coupler VLC1; the cathode of the emitter of phototriode and photodiode is grounded in coupler VLC2, the anode connection driving circuit of photodiode in coupler VLC2；In coupler VLC3 in the anode connection coupler VLC4 of diode phototriode collector, the emitter of phototriode and the cathode ground connection of photodiode in coupler VLC4, the anode connection driving circuit of photodiode in coupler VLC4；The protection circuit cooperation tri-state gate circuit of setting can ensure that driving circuit will not be burned.
Description
Technical field
The utility model is related to the fields such as electronic circuit technology, motor-drive technique, are a kind of band driving tubes specifically
The motor-drive circuit of defencive function.
Background technology
Dc motor is the motor that direct current energy is converted to mechanical energy.In electricity due to its good speed adjusting performance
It is used widely in power dragging.Dc motor is divided into 3 classes of permanent magnetism, separate excitation and self-excitation by excitation mode, wherein self-excitation is divided into
For 3 kinds of shunt excitation, series excitation and compound excitation.
When DC power supply is powered by brush to armature winding, the poles the N lower conductor of armature surface can flow through phase Tongfang
To electric current, will be by anticlockwise moment loading according to left hand rule conductor；The poles armature surface S lower part sub-conductor also flows
The electric current for crossing the same direction, also will be by anticlockwise moment loading also according to left hand rule conductor.In this way, entire electricity
Pivot winding, that is, rotor will be converted into the mechanical energy of rotor on-axis output by rotation counterclockwise, the direct current energy of input.By stator
It is formed with rotor, stator：Pedestal, main pole, commutating pole, brushgear etc.；Rotor（Armature）：Armature core, armature winding change
To device, shaft and fan etc..
The performance of dc motor is closely related with its excitation mode, and the excitation mode of usual dc motor has 4 kinds：
DC separately excited motor, DC shunt motor, D.C. series motor and DC compound motor.
DC separately excited motor：Exciting Windings for Transverse Differential Protection and armature be not electric to be contacted, and field circuit is supplied by other DC power supply
It gives.Therefore exciting current is not influenced by armature terminal voltage or armature supply.
DC shunt motor:Circuit in parallel, shunting, shunt connection of excitation wind both end voltage is exactly armature both end voltage, but is encouraged
Magnetic winding is coiled into thin wire, and there are many number of turns, therefore has larger resistance so that smaller by his exciting current.
D.C. series motor：Current-series, partial pressure, Exciting Windings for Transverse Differential Protection is concatenated with armature, so in this motor
There is significant change in magnetic field with the change of armature supply.In order to make that big loss and voltage drop will not be caused in Exciting Windings for Transverse Differential Protection,
The resistance of Exciting Windings for Transverse Differential Protection is the smaller the better, so D.C. series motor is usually coiled into thicker conducting wire, his the number of turns is less.
DC compound motor：The magnetic flux of motor is generated by the exciting current in two windings.
Utility model content
The purpose of this utility model is to provide a kind of motor-drive circuits with driving tube defencive function, are carrying out motor
When drive control, the protection circuit of setting cooperation tri-state gate circuit can ensure that driving circuit will not be burned, and when circuit by
When simultaneous selection motor forward/backward rotation occur in outside electromagnetic interference or maloperation, the case where avoiding burning out driving circuit, occurs.
The utility model is achieved through the following technical solutions：A kind of motor-drive circuit with driving tube defencive function, if
It is equipped with motor M, driving circuit, tri-state gate circuit, protection circuit and termination power, the driving circuit connects tri-state gate circuit,
Tri-state gate circuit is connected with termination power, and termination power is also by protecting circuit to connect driving circuit；In the termination power
It is inside provided with coupler VLC1, coupler VLC3, diode D1, resistance R15, diode D2 and resistance R16, in protection electricity
It is provided with coupler VLC2 and coupler VLC4 in road, diode D1 and resistance R15 are in parallel and be connected to light in coupler VLC1
Between the emitter and ground of quick triode, the emitter of phototriode connects tri-state gate circuit, coupler in coupler VLC1
The collector of phototriode connects driving circuit in VLC1；Diode D2 and resistance R16 is in parallel and is connected to coupler VLC3
Between the emitter and ground of interior phototriode, the emitter of phototriode connects tri-state gate circuit, coupling in coupler VLC3
The collector of phototriode connects driving circuit in clutch VLC3；The anode connection coupler of diode in coupler VLC1
The collector of phototriode in VLC2, the emitter of phototriode and the cathode of photodiode connect in coupler VLC2
Ground, the anode connection driving circuit of photodiode in coupler VLC2；The anode connection coupling of diode in coupler VLC3
The collector of phototriode in device VLC4, the emitter of phototriode and the cathode of photodiode connect in coupler VLC4
Ground, the anode connection driving circuit of photodiode in coupler VLC4；Driving circuit connects motor M.
Further is that the utility model is better achieved, and especially uses following setting structures：The driving circuit includes
The first driving circuit, the second driving circuit, third driving circuit, the 4th driving circuit being connected with tri-state gate circuit, it is described
The first end that motor M turns to winding connects the first driving circuit and the second driving circuit, and motor M turns to the second end connection of winding
Third driving circuit and the 4th driving circuit；Anode the second driving circuit of connection of photodiode in coupler VLC2；Coupling
Anode the 4th driving circuit of connection of photodiode in device VLC4.
Further is that the utility model is better achieved, and especially uses following setting structures：First driving circuit
Including triode V1, triode V5, triode V6, resistance R2 and resistance R3, the 4th driving circuit includes triode V4, three
Pole pipe V10, resistance R8, resistance R9, the base stage of triode V1 are connected with tri-state gate circuit, the emitter connection three of triode V1
The base stage of pole pipe V5, the collector of triode V1 respectively with phototriode in the collector of triode V4 and coupler VLC1
Collector is connected, and by the base stage of resistance R2 connecting triodes V6, the emitter of triode V5 is logical for the collector of triode V5
Resistance R3 ground connection is crossed, the collector of triode V6 connects the second driving circuit and motor M turns to the first end of winding；Triode V4
Base stage connect tri-state gate circuit, the emitter of triode V4 passes through the base stage of resistance R8 connecting triodes V10, triode V10
Emitter be also grounded by resistance R10, and the base stage of triode V10 is also grounded by resistance R9, the collector of triode V10
The second end for turning to winding with third driving circuit and motor M respectively is connected, the anode of photodiode in coupler VLC2
The emitter of connecting triode V7.
Further is that the utility model is better achieved, and especially uses following setting structures：The triode V6's
Voltage-stabiliser tube Z1, and the emitter of the cathode connecting triode V6 of voltage-stabiliser tube Z1 are additionally provided between emitter and collector；Institute
It states and is additionally provided with voltage-stabiliser tube Z4, and the positive connecting triode V10 of voltage-stabiliser tube Z4 between the emitter and collector of triode V10
Emitter.
Further is that the utility model is better achieved, and especially uses following setting structures：The third driving circuit
Include triode V2, three including triode V3, triode V8, triode V9, resistance R6 and resistance R7, second driving circuit
Pole pipe V7, resistance R4, resistance R5, the base stage of triode V3 are connected with tri-state gate circuit, the emitter connection three of triode V3
The base stage of pole pipe V8, the collector of triode V3 respectively with phototriode in the collector of triode V2 and coupler VLC1
Collector is connected, and by the base stage of resistance R6 connecting triodes V9, the emitter of triode V8 is logical for the collector of triode V8
Resistance R7 ground connection is crossed, the collector connection motor M of triode V9 turns to the second end of winding；The base stage of triode V2 connects tri-state
Gate circuit, the emitter of triode V2 also pass through electricity by the base stage of resistance R4 connecting triodes V7, the emitter of triode V7
R19 ground connection is hindered, and the base stage of triode V7 is also grounded by resistance R5, collector and the motor M of triode V7 turn to winding
First end is connected, the emitter of the positive connecting triode V10 of photodiode in coupler VLC4.
Further is that the utility model is better achieved, and especially uses following setting structures：The triode V7's
Voltage-stabiliser tube Z2, and the emitter of the positive connecting triode V7 of voltage-stabiliser tube Z2 are additionally provided between emitter and collector；Institute
It states and is additionally provided with voltage-stabiliser tube Z3 between the emitter and collector of triode V9, and the cathode connecting triode V9 of voltage-stabiliser tube Z3
Emitter.
Further is that the utility model is better achieved, and especially uses following setting structures：The tri-state gate circuit packet
Triple gate S1, triple gate S2, triple gate S3 and triple gate S4 are included, the input terminal of triple gate S1 is separately connected light in coupler VLC1
The input terminal of the input terminal of the emitter and triple gate S4 of quick triode, triple gate S3 is separately connected photosensitive three in coupler VLC3
The input terminal of the emitter and triple gate S2 of pole pipe, the output end of the control terminal connection triple gate S2 of triple gate S1, triple gate S3
Control terminal connection triple gate S4 output end, the control terminal ground connection of triple gate S2, the control terminal ground connection of triple gate S4；Triple gate
The output end of S1 passes through resistance R11 the first driving circuits of connection（The base stage of triode V1）, the output end of triple gate S2 passes through electricity
Hinder R12 and the second driving circuit（The base stage of triode V2）It is connected；The output end of triple gate S3 passes through resistance R13 connection thirds
Driving circuit（The base stage of triode V3）, the output end of triple gate S4 passes through resistance R14 and the second driving circuit（Triode V4's
Base stage）It is connected.
Further is that the utility model is better achieved, and especially uses following setting structures：In the coupler VLC1
The cathode of photodiode is grounded by resistance R17, and the cathode of photodiode is grounded by resistance R18 in coupler VLC3.
Further is that the utility model is better achieved, and especially uses following setting structures：The diode D1 and two
Pole pipe D2 all uses light emitting diode, and the cathode ground connection of diode D1, the cathode of diode D2 are also grounded.
Further is that the utility model is better achieved, and especially uses following setting structures：It is turned on winding in motor M
Also it is parallel with resistance R1.
The utility model compared with prior art, has the following advantages and advantageous effect：
When carrying out drive and control of electric machine, the protection circuit cooperation tri-state gate circuit of setting can ensure to drive the utility model
Dynamic circuit will not be burned, and when circuit simultaneous selection motor forward/backward rotation is occurred by outside electromagnetic interference or maloperation, be kept away
The case where unburned bad driving circuit, occurs.
The utility model is transported to tri-state gate circuit using termination power by signal is controlled, then is transferred to by tri-state gate circuit
In driving circuit so that the M work of driving circuit driving motor, the use of termination power can avoid directly controlling signal loading
To cause front-end control signal output apparatus to constitute signal interference to rear end driving circuit in driving circuit, motor M is influenced
Normal operation the case where occur.
The utility model can realize that the main story of motor and reversion control, and with the high characteristic of control accuracy.
The utility model is gated using triple gate, can effectively improve the driving stability of entire motor-drive circuit
And control reliability.
Description of the drawings
Fig. 1 is the utility model circuit diagram.
Specific implementation mode
The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not
It is limited to this.
Embodiment 1：
A kind of motor-drive circuit with driving tube defencive function, when carrying out drive and control of electric machine, the protection electricity of setting
Road cooperation tri-state gate circuit can ensure that driving circuit will not be burned, and when circuit is occurred by outside electromagnetic interference or maloperation
When simultaneous selection motor forward/backward rotation, the case where avoiding burning out driving circuit, occurs, as shown in Figure 1, especially using following settings
Structure：It is provided with motor M, driving circuit, tri-state gate circuit, protection circuit and termination power, the driving circuit connects tri-state
Gate circuit, tri-state gate circuit are connected with termination power, and termination power is also by protecting circuit to connect driving circuit；In the coupling
It closes in circuit and is provided with coupler VLC1, coupler VLC3, diode D1, resistance R15, diode D2 and resistance R16, described
It is provided with coupler VLC2 and coupler VLC4 in protection circuit, diode D1 and resistance R15 are in parallel and be connected to coupler
The emitter of phototriode in VLC1（15 feet）Between ground, the emitter of phototriode connects in coupler VLC1（15 feet）
Connect tri-state gate circuit, the collector of phototriode in coupler VLC1（16 feet）Connect driving circuit；Diode D2 and resistance
R16 is in parallel and is connected to the emitter of phototriode in coupler VLC3（11 feet）It is photosensitive in coupler VLC3 between ground
The emitter of triode（11 feet）Tri-state gate circuit is connected, the collector of phototriode in coupler VLC3（12 feet）Connection is driven
Dynamic circuit；The anode of diode in coupler VLC1（1 foot）Connect the collector of phototriode in coupler VLC2（14 feet）,
The emitter of phototriode in coupler VLC2（13 feet）With the cathode of photodiode（4 feet）It is grounded, in coupler VLC2
The anode of photodiode（3 feet）Connect driving circuit；The anode of diode in coupler VLC3（5 feet）Connect coupler VLC4
The collector of interior phototriode（10 feet）, the emitter of phototriode in coupler VLC4（9 feet）With photodiode
Cathode（8 feet）It is grounded, the anode of photodiode in coupler VLC4（7 feet）Connect driving circuit；Driving circuit connects motor
M, preferred 110V direct currents by the ports Uo be loaded on the armature winding of motor M.
The coupler VLC1, coupler VLC2, coupler VLC3, coupler VLC4 preferably use single independent optocoupler or
Using 4 groups of compositions in TLP521-4 optocouplers.
Embodiment 2：
The present embodiment is further optimized based on the above embodiments, as shown in Figure 1, further is preferably real
Existing the utility model, especially uses following setting structures：The driving circuit includes that first to be connected with tri-state gate circuit drives
Dynamic circuit, the second driving circuit, third driving circuit, the 4th driving circuit, the motor M turn to the first end connection the of winding
One drive circuit and the second driving circuit, motor M turn to the second end connection third driving circuit and the 4th driving circuit of winding；
The anode of photodiode in coupler VLC2（3 feet）Connect the second driving circuit；Photodiode is being just in coupler VLC4
Pole（7 feet）Connect the 4th driving circuit.
Embodiment 3：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：First driving circuit include triode V1, triode V5,
Triode V6, resistance R2 and resistance R3, the 4th driving circuit include triode V4, triode V10, resistance R8, resistance R9,
The base stage of triode V1 is connected with tri-state gate circuit, the base stage of the emitter connecting triode V5 of triode V1, triode V1
The collector collector with phototriode in the collector of triode V4 and coupler VLC1 respectively（16 feet）It is connected, three
The collector of pole pipe V5 is grounded by the base stage of resistance R2 connecting triodes V6, the emitter of triode V5 by resistance R3, and three
The collector of pole pipe V6 connects the second driving circuit and motor M turns to the first end of winding；The base stage of triode V4 connects tri-state
Gate circuit, the emitter of triode V4 are also passed through by the base stage of resistance R8 connecting triodes V10, the emitter of triode V10
Resistance R10 ground connection, and the base stage of triode V10 is also grounded by resistance R9, the collector of triode V10 drives with third respectively
The second end that circuit turns to winding with motor M is connected, the anode of photodiode in coupler VLC2（3 feet）Connecting triode
The emitter of V7.
Preferred triode V1, triode V5, triode V4 and triode V10 all use NPN type triode, triode V6
Select PNP type triode.
Embodiment 4：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：It is also set between the emitter and collector of the triode V6
It is equipped with voltage-stabiliser tube Z1, and the emitter of the cathode connecting triode V6 of voltage-stabiliser tube Z1；In the emitter sum aggregate of the triode V10
Voltage-stabiliser tube Z4, and the emitter of the positive connecting triode V10 of voltage-stabiliser tube Z4 are additionally provided between electrode.
Embodiment 5：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：The third driving circuit include triode V3, triode V8,
Triode V9, resistance R6 and resistance R7, second driving circuit include triode V2, triode V7, resistance R4, resistance R5,
The base stage of triode V3 is connected with tri-state gate circuit, the base stage of the emitter connecting triode V8 of triode V3, triode V3
The collector collector with phototriode in the collector of triode V2 and coupler VLC1 respectively（16 feet）It is connected, three
The collector of pole pipe V8 is grounded by the base stage of resistance R6 connecting triodes V9, the emitter of triode V8 by resistance R7, and three
The collector connection motor M of pole pipe V9 turns to the second end of winding；The base stage of triode V2 connects tri-state gate circuit, triode V2
Emitter by the base stage of resistance R4 connecting triodes V7, the emitter of triode V7 is also grounded by resistance R19, and three poles
The base stage of pipe V7 is also grounded by resistance R5, and the collector of triode V7 is connected with the first end of motor M steering windings, couples
The anode of photodiode in device VLC4（7 feet）The emitter of connecting triode V10.
Preferred triode V2, triode V7, triode V3 and triode V8 all use NPN type triode, triode V9
Select PNP type triode.Preferred NPN type triode uses BU508, PNP type triode to use 3DA87.
Embodiment 6：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：It is also set between the emitter and collector of the triode V7
It is equipped with voltage-stabiliser tube Z2, and the emitter of the positive connecting triode V7 of voltage-stabiliser tube Z2；In the emitter sum aggregate of the triode V9
Voltage-stabiliser tube Z3, and the emitter of the cathode connecting triode V9 of voltage-stabiliser tube Z3 are additionally provided between electrode.
Embodiment 7：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：The tri-state gate circuit includes triple gate S1, triple gate S2, three
State door S3 and triple gate S4, the input terminal of triple gate S1（2 feet）It is separately connected the emitter of phototriode in coupler VLC1
（15 feet）With the input terminal of triple gate S4（12 feet）, the input terminal of triple gate S3（9 feet）It is separately connected photosensitive in coupler VLC3
The emitter of triode（11 feet）With the input terminal of triple gate S2（5 feet）, the control terminal of triple gate S1（1 foot）Connect triple gate S2
Output end（6 feet）, the control terminal of triple gate S3（10 feet）Connect the output end of triple gate S4（11 feet）, the control of triple gate S2
End（4 feet）Ground connection, the control terminal of triple gate S4（13 feet）Ground connection；The output end of triple gate S1 is driven by resistance R11 connections first
Dynamic circuit（The base stage of triode V1）, the output end of triple gate S2 passes through resistance R12 and the second driving circuit（The base of triode V2
Pole）It is connected；The output end of triple gate S3 passes through resistance R13 connection third driving circuits（The base stage of triode V3）, triple gate
The output end of S4 passes through resistance R14 and the second driving circuit（The base stage of triode V4）It is connected.
The triple gate S1, triple gate S2, triple gate S3, triple gate S4 use independent triple gate chip or use
4 groups of compositions in 74LS125.
Embodiment 8：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：The cathode of photodiode in the coupler VLC1（2 feet）It is logical
It crosses resistance R17 to be grounded, the cathode of photodiode in coupler VLC3（6 feet）It is grounded by resistance R18.
Embodiment 9：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：The diode D1 and diode D2 all uses light emitting diode,
And the cathode ground connection of diode D1, the cathode of diode D2 are also grounded.
Embodiment 10：
The present embodiment is to advanced optimize based on any of the above embodiments, as shown in Figure 1, further is more preferable
The utility model is realized on ground, especially uses following setting structures：It is turned in motor M and is also parallel with resistance R1 on winding.
In design in use, in coupler VLC1 and coupler VLC2 access+5V on the collector of phototriode
Direct current is terminated fashionable by IN2, works as rising when the control signal of rising edge terminates the control signal into, failing edge by IN1
When signal passes through VLC1.Light emitting diode D1 conductings are shinny, and establish voltage on resistance R15, which is added in triple gate S1
2 pins and triple gate S4 12 leads ends, at the same time, due to coupler VLC3 no signals, light emitting diode D2 cut-offs,
No-voltage on resistance R16,5 foot of input terminal of triple gate S2 is low level at this time, which is exported by triple gate S2
Give triple gate S1 control terminals（1 foot）, triple gate S1 gatings.While triple gate S1 conductings, the triple gate S4 output signals of gating
It is added to the control terminal of triple gate S3（10 feet）, block triple gate S3.
When dropping signal is by coupler VLC3, light emitting diode D2 conductings, and voltage is established on resistance R16, it should
Voltage is added to 9 feet of triple gate S3 and 5 feet of triple gate S2；At the same time, due to coupler VLC1 no signals, light emitting diode
D1 ends, no-voltage on resistance R15, and 12 foot of input terminal of triple gate S4 is low level at this time, which passes through tri-state
Door S4, exports to the control terminal of triple gate S3（10 feet）, triple gate S3 gatings.While triple gate S2 is connected, the three of gating
State door S2 output signals are added to the control terminal of triple gate S1（1 foot）, block triple gate S1.
It is to motor M controls：When triple gate S1, triple gate S2, triple gate S4 gating, triode V1, triode V5,
Triode V6, triode V4, triode V10 conductings；Triode V2, triode V7, triode V3, triode V8, triode V9
Cut-off.Due to triode V6 and triode V10 conductings, 110 V voltages of direct current are applied directly to motor M and turn to winding both ends, motor M
Just（Instead）Turn；When triple gate S2, triple gate S3, triple gate S4 gatings, triode V2, triode V7, triode V3, triode
V8, triode V9 conductings；Triode V1, triode V5, triode V6, triode V4, triode V10 cut-offs, due to triode
V9 and triode V7 conductings, 110 V voltages of direct current are applied directly to motor M and turn to winding both ends, and motor M is anti-（Just）Turn.
When motor M electric currents are more than triode V6, triode V7 or triode V9, triode V10 rated current, driving tube
（Triode V6, triode V7 or triode V9, triode V10）It may be burned, but be interlocked using triple gate, and in triode
V7 and triode V10 emitters increase sampling resistor（Resistance R19, resistance R10）.When sampled voltage is more than coupler（VLC2 or/
And VLC4）Conducting voltage, coupler（VLC2 or/and VLC4）Output by the short circuit of the signal voltage of height-regulating, prevent signal voltage from
By VLC1 or VLC3, further reach protection driving tube（Triode V6, triode V7 or triode V9, triode V10）'s
Purpose.
When by outside electromagnetic interference or maloperation, when simultaneous selection motor forward and backward, VLC1 and VLC2 may be caused
It gates simultaneously, but since tri-state gate circuit has protective effect, only allows to rise or fall signal and pass through, circuit has interlocking
Property, it can avoid burning out subsequent drive pipe（Triode V6, triode V7 or triode V9, triode V10）.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the scope of protection of the utility model.
Claims (10)
1. a kind of motor-drive circuit with driving tube defencive function, it is characterised in that：It is provided with motor M, driving circuit, tri-state
Gate circuit, protection circuit and termination power, the driving circuit connect tri-state gate circuit, and tri-state gate circuit is connected with termination power
It connects, termination power is also by protecting circuit to connect driving circuit；Coupler VLC1, coupler are provided in the termination power
VLC3, diode D1, resistance R15, diode D2 and resistance R16 are provided with coupler VLC2 and coupling in the protection circuit
Clutch VLC4, diode D1 and resistance R15 are in parallel and be connected in coupler VLC1 between the emitter and ground of phototriode,
The emitter of phototriode connects tri-state gate circuit in coupler VLC1, and the collector of phototriode connects in coupler VLC1
Connect driving circuit；Diode D2 and resistance R16 is in parallel and is connected to the emitter of phototriode and ground in coupler VLC3
Between, the emitter of phototriode connects tri-state gate circuit in coupler VLC3, the current collection of phototriode in coupler VLC3
Pole connects driving circuit；The anode of diode connects the collector of phototriode in coupler VLC2, coupling in coupler VLC1
The cathode of the emitter of phototriode and photodiode is grounded in clutch VLC2, and photodiode is being just in coupler VLC2
Pole connects driving circuit；The anode of diode connects the collector of phototriode in coupler VLC4, coupling in coupler VLC3
The cathode of the emitter of phototriode and photodiode is grounded in clutch VLC4, and photodiode is being just in coupler VLC4
Pole connects driving circuit；Driving circuit connects motor M.
2. a kind of motor-drive circuit with driving tube defencive function according to claim 1, it is characterised in that：The drive
Dynamic circuit includes the first driving circuit being connected with tri-state gate circuit, the second driving circuit, third driving circuit, the 4th driving
Circuit, the first end that the motor M turns to winding connect the first driving circuit and the second driving circuit, and motor M turns to winding
Second end connects third driving circuit and the 4th driving circuit；The second driving of anode connection of photodiode in coupler VLC2
Circuit；Anode the 4th driving circuit of connection of photodiode in coupler VLC4.
3. a kind of motor-drive circuit with driving tube defencive function according to claim 2, it is characterised in that：Described
One drive circuit includes that triode V1, triode V5, triode V6, resistance R2 and resistance R3, the 4th driving circuit include
Triode V4, triode V10, resistance R8, resistance R9, the base stage of triode V1 are connected with tri-state gate circuit, triode V1's
The base stage of emitter connecting triode V5, the collector of triode V1 respectively in the collector of triode V4 and coupler VLC1
The collector of phototriode is connected, and the collector of triode V5 passes through the base stage of resistance R2 connecting triodes V6, triode
The emitter of V5 is grounded by resistance R3, and the collector of triode V6 connects the second driving circuit and motor M turns to the of winding
One end；The base stage of triode V4 connects tri-state gate circuit, the base that the emitter of triode V4 passes through resistance R8 connecting triodes V10
The emitter of pole, triode V10 is also grounded by resistance R10, and the base stage of triode V10 is also grounded by resistance R9, three poles
The second end that the collector of pipe V10 turns to winding with third driving circuit and motor M respectively is connected, photosensitive in coupler VLC2
The emitter of the positive connecting triode V7 of diode.
4. a kind of motor-drive circuit with driving tube defencive function according to claim 3, it is characterised in that：Described
Voltage-stabiliser tube Z1, and the hair of the cathode connecting triode V6 of voltage-stabiliser tube Z1 are additionally provided between the emitter and collector of triode V6
Emitter-base bandgap grading；Voltage-stabiliser tube Z4, and the anode connection of voltage-stabiliser tube Z4 are additionally provided between the emitter and collector of the triode V10
The emitter of triode V10.
5. according to a kind of motor-drive circuit with driving tube defencive function of claim 2 ~ 4 any one of them, feature exists
In：The third driving circuit includes triode V3, triode V8, triode V9, resistance R6 and resistance R7, second driving
Circuit includes triode V2, triode V7, resistance R4, resistance R5, and the base stage of triode V3 is connected with tri-state gate circuit, three poles
The base stage of the emitter connecting triode V8 of pipe V3, the collector of triode V3 respectively with the collector and coupler of triode V2
The collector of phototriode is connected in VLC1, the collector of triode V8 by the base stage of resistance R6 connecting triodes V9,
The emitter of triode V8 is grounded by resistance R7, and the collector connection motor M of triode V9 turns to the second end of winding；Three poles
The base stage of pipe V2 connects tri-state gate circuit, and the emitter of triode V2 passes through the base stage of resistance R4 connecting triodes V7, triode
The emitter of V7 is also grounded by resistance R19, and the base stage of triode V7 is also grounded by resistance R5, the collector of triode V7
The first end that winding is turned to motor M is connected, the transmitting of the positive connecting triode V10 of photodiode in coupler VLC4
Pole.
6. a kind of motor-drive circuit with driving tube defencive function according to claim 5, it is characterised in that：Described
Voltage-stabiliser tube Z2, and the hair of the positive connecting triode V7 of voltage-stabiliser tube Z2 are additionally provided between the emitter and collector of triode V7
Emitter-base bandgap grading；Voltage-stabiliser tube Z3, and the cathode connection of voltage-stabiliser tube Z3 are additionally provided between the emitter and collector of the triode V9
The emitter of triode V9.
7. according to claim 2 ~ 4, a kind of motor-drive circuit with driving tube defencive function of 6 any one of them, feature
It is：The tri-state gate circuit includes triple gate S1, triple gate S2, triple gate S3 and triple gate S4, the input terminal of triple gate S1
It is separately connected the input terminal of the emitter of phototriode and triple gate S4 in coupler VLC1, the input terminal difference of triple gate S3
The input terminal of the emitter and triple gate S2 of phototriode in coupler VLC3 is connected, the control terminal of triple gate S1 connects tri-state
The output end of door S2, the output end of the control terminal connection triple gate S4 of triple gate S3, the control terminal ground connection of triple gate S2, triple gate
The control terminal of S4 is grounded；For the output end of triple gate S1 by resistance R11 the first driving circuits of connection, the output end of triple gate S2 is logical
Resistance R12 is crossed with the second driving circuit to be connected；The output end of triple gate S3 is by resistance R13 connection third driving circuits, and three
The output end of state door S4 is connected by resistance R14 with the second driving circuit.
8. according to claim 1 ~ 4, a kind of motor-drive circuit with driving tube defencive function of 6 any one of them, feature
It is：The cathode of photodiode is grounded by resistance R17 in the coupler VLC1, photodiode in coupler VLC3
Cathode is grounded by resistance R18.
9. according to claim 1 ~ 4, a kind of motor-drive circuit with driving tube defencive function of 6 any one of them, feature
It is：The diode D1 and diode D2 all uses light emitting diode, and the cathode ground connection of diode D1, and diode D2's is negative
Pole is also grounded.
10. according to claim 1 ~ 4, a kind of any one of 6 motor-drive circuits with driving tube defencive function of any one of them,
It is characterized in that：It is turned in motor M and is also parallel with resistance R1 on winding.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107911059A (en) * | 2017-12-08 | 2018-04-13 | 成都互聚科技有限公司 | A kind of motor-drive circuit with driving tube defencive function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107911059A (en) * | 2017-12-08 | 2018-04-13 | 成都互聚科技有限公司 | A kind of motor-drive circuit with driving tube defencive function |
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