CN208849702U - A kind of circuit for controlling motor - Google Patents
A kind of circuit for controlling motor Download PDFInfo
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- CN208849702U CN208849702U CN201821611034.4U CN201821611034U CN208849702U CN 208849702 U CN208849702 U CN 208849702U CN 201821611034 U CN201821611034 U CN 201821611034U CN 208849702 U CN208849702 U CN 208849702U
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Abstract
The utility model relates to field of circuit technology, a kind of particularly circuit for controlling motor.The utility model discloses a kind of circuit for controlling motor, including the H-bridge drive circuit for controlling motor positive and inverse, it further include the first delay turn-on circuit and the second delay turn-on circuit, the rotating forward input terminal of the H-bridge drive circuit connects the positive rotaring signal of motor by the first delay turn-on circuit, and the non-inverting input of the H-bridge drive circuit connects motor reversal signal by the second delay turn-on circuit.The utility model can prevent the switching tube up and down of H-bridge drive circuit from simultaneously turning on and the case where power supply short circuit leads to burning machine occur, improve safety and reliability.
Description
Technical field
The utility model belongs to field of circuit technology, more particularly to a kind of circuit for controlling motor.
Background technique
The positive and negative rotation control of existing direct current generator generallys use H-bridge drive circuit to realize, and H-bridge drive circuit compares
The most commonly used is the H-bridge drive circuit that metal-oxide-semiconductor is constituted, physical circuit is as shown in Figure 1, when there is the positive rotaring signal input (high level) of motor
When, PMOS tube Q1 and NMOS tube Q4 conducting, motor M1 are rotated forward.When there is motor reversal signal to input (high level), PMOS tube Q2
It is connected with NMOS tube Q3, motor M1 reversion, to realize that motor M1 positive and negative rotation controls.
But the circuit motor M1 from just go to reversion process i.e. from PMOS tube Q1 and NMOS tube Q4 shutdown be transformed into PMOS
When pipe Q2 and NMOS tube Q3 is connected, it is easy to appear PMOS tube Q1 and NMOS tube Q4 is not complete switched off, but PMOS tube Q2 and NMOS tube
Q3 has but been connected, and power supply 12V runs past PMOS tube Q1/NMOS pipe Q3 or PMOS tube Q2/NMOS pipe Q4 and is shorted to ground at this time, leads
Burning machine is caused, safety and reliability is low.
Summary of the invention
It is above-mentioned to solve the problems, such as that the purpose of this utility model is to provide a kind of circuit for controlling motor.
To achieve the above object, the technical solution adopted in the utility model are as follows: a kind of circuit for controlling motor, including for controlling
The H-bridge drive circuit of motor positive and inverse processed, further includes the first delay turn-on circuit and the second delay turn-on circuit, and the H bridge drives
The rotating forward input terminal of dynamic circuit connects the positive rotaring signal of motor by the first delay turn-on circuit, and the reversion of the H-bridge drive circuit is defeated
Enter end and motor reversal signal is connect by the second delay turn-on circuit.
Further, the H-bridge drive circuit is constituted using metal-oxide-semiconductor.
Further, the H-bridge drive circuit includes PMOS tube Q1, PMOS tube Q2, NMOS tube Q3, NMOS tube Q4, NPN
Triode Q5 and NPN triode Q6, the source electrode of the PMOS tube Q1 connect power supply, and the drain electrode of the PMOS tube Q1 connects NMOS tube Q3's
Drain electrode, the gate series resistance R5 of the PMOS tube Q1 connects the collector of NPN triode Q6, while series resistance R2 connects power supply,
The emitter of the NPN triode Q6 is grounded, and the source electrode ground connection of the NMOS tube Q3, the source electrode of the PMOS tube Q2 connects power supply,
The drain electrode of the PMOS tube Q2 connects the drain electrode of NMOS tube Q4, and the gate series resistance R6 of the PMOS tube Q2 meets NPN triode Q5
Collector, while series resistance R4 connects power supply, the emitter ground connection of the NPN triode Q5, the source electrode of the NMOS tube Q4
Ground connection, the grid of the NMOS tube Q4 and the base stage of NPN triode Q6 are connected to the rotating forward input terminal of H-bridge drive circuit, institute
The base stage of the grid and NPN triode Q5 of stating NMOS tube Q3 is connected to the non-inverting input of H-bridge drive circuit, the PMOS tube
Node between Q1 and NMOS tube Q3 connects the anode of motor M1, and the node between the PMOS tube Q2 and NMOS tube Q4 meets motor M1
Negative terminal.
Further, first delay turn-on circuit includes resistance R7, capacitor C1 and voltage-stabiliser tube ZD1, the voltage-stabiliser tube
The rotating forward input terminal of the positive termination H-bridge drive circuit of ZD1, the negative terminal series resistance R7 of the voltage-stabiliser tube ZD1 connect motor and just transfer the letter
Number, the node series capacitance C1 ground connection between the voltage-stabiliser tube ZD1 and resistance R7.
Further, the pressure stabilizing value of the voltage-stabiliser tube ZD1 is 5.6V.
Further, second delay turn-on circuit includes resistance R14, capacitor C2 and voltage-stabiliser tube ZD2, the voltage-stabiliser tube
The non-inverting input of the positive termination H-bridge drive circuit of ZD2, the negative terminal series resistance R14 of the voltage-stabiliser tube ZD2 connect motor reversal letter
Number, the node series capacitance C2 ground connection between the voltage-stabiliser tube ZD2 and resistance R14.
Further, the pressure stabilizing value of the voltage-stabiliser tube ZD2 is 5.6V.
It further, further include interlock circuit, the interlock circuit connects in the rotating forward input terminal of H-bridge drive circuit and reversion
Between input terminal.
Further, the interlock circuit includes NMOS tube Q7 and NMOS tube Q8, and the drain electrode of the NMOS tube Q7 connects surely
Node between pressure pipe ZD1 and resistance R7, the source electrode ground connection of the NMOS tube Q7, the gate series resistance of the NMOS tube Q7
R10 connects motor reversal signal, and the drain electrode of the NMOS tube Q8 connects the node between voltage-stabiliser tube ZD2 and resistance R14, the NMOS tube
The source electrode of Q8 is grounded, and the gate series resistance R12 of the NMOS tube Q8 connects the positive rotaring signal of motor.
The advantageous effects of the utility model:
The utility model can prevent the switching tube up and down of H-bridge drive circuit while lead by increasing delay turn-on circuit
Pass-out shows the case where power supply short circuit leads to burning machine, improves safety and reliability.
The utility model further prevents the switching tube up and down of H-bridge drive circuit to simultaneously turn on by increasing interlock circuit
There is the case where power supply short circuit leads to burning machine, so that safety and reliability is higher.
The utility model circuit structure is simple, it is easy to accomplish.
Detailed description of the invention
Fig. 1 is the schematic diagram for the H-bridge drive circuit that existing metal-oxide-semiconductor is constituted；
Fig. 2 is the circuit diagram of the utility model specific embodiment.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Fig. 2, a kind of circuit for controlling motor is also wrapped including the H-bridge drive circuit for controlling motor M1 positive and negative rotation
The first delay turn-on circuit and the second delay turn-on circuit are included, the rotating forward input terminal of the H-bridge drive circuit passes through the first delay
Turning circuit connects the positive rotaring signal of motor, and the non-inverting input of the H-bridge drive circuit connects motor by the second delay turn-on circuit
Reverse signal.
In this specific embodiment, the H-bridge drive circuit is constituted using metal-oxide-semiconductor, specifically, including PMOS tube Q1, PMOS
Pipe Q2, NMOS tube Q3, NMOS tube Q4, NPN triode Q5 and NPN triode Q6, the source electrode of the PMOS tube Q1 connects power supply, described
The drain electrode of PMOS tube Q1 connects the drain electrode of NMOS tube Q3, and the gate series resistance R5 of the PMOS tube Q1 connects the collection of NPN triode Q6
Electrode, while series resistance R2 connects power supply, the emitter ground connection of the NPN triode Q6, the source electrode of the NMOS tube Q3 is grounded,
The source electrode of the PMOS tube Q2 connects power supply, and the drain electrode of the PMOS tube Q2 connects the drain electrode of NMOS tube Q4, the grid of the PMOS tube Q2
Pole series resistance R6 connects the collector of NPN triode Q5, while series resistance R4 connects power supply, the transmitting of the NPN triode Q5
Pole ground connection, the source electrode ground connection of the NMOS tube Q4, the grid of the NMOS tube Q4 and the base stage of NPN triode Q6 are connected to H
The rotating forward input terminal of bridge driving circuit, the grid of the NMOS tube Q3 and the base stage of NPN triode Q5 are connected to H bridge driving electricity
The non-inverting input on road, the node between the PMOS tube Q1 and NMOS tube Q3 connect the anode of motor M1, the PMOS tube Q2 with
Node between NMOS tube Q4 connects the negative terminal of motor M1.
In this specific embodiment, power supply is+12V power supply, but not limited to this, in other embodiments, the voltage of power supply can
To be selected according to the actual situation, this is that those skilled in the art can realize easily, is no longer described in detail.
Certainly, in other embodiments, H-bridge drive circuit can also use existing other H-bridge drive circuit forms, such as
It is all constituted using NMOS tube, or is constituted using other switching tubes such as triode, this is that those skilled in the art can be with
It realizes, no longer describes in detail easily.
In this specific embodiment, first delay turn-on circuit includes resistance R7, capacitor C1 and voltage-stabiliser tube ZD1, described
Second delay turn-on circuit includes the positive termination H bridge driving electricity of resistance R14, capacitor C2 and voltage-stabiliser tube ZD2, the voltage-stabiliser tube ZD1
The rotating forward input terminal on road is gone here and there all the way specifically, series resistance R8 connects the base stage of NPN triode Q6 to the anode of voltage-stabiliser tube ZD1 all the way
Connection resistance R16 connects the grid of NMOS tube Q4, and the negative terminal series resistance R7 of the voltage-stabiliser tube ZD1 connects the positive rotaring signal of motor, described steady
Between pressure pipe ZD1 and resistance R7 node series capacitance C1 ground connection, the positive termination H-bridge drive circuit of the voltage-stabiliser tube ZD2 it is anti-
Turn input terminal, specifically, series resistance R2 connects the base stage of NPN triode Q5 to the anode of voltage-stabiliser tube ZD2 all the way, series resistance all the way
R15 connects the grid of NMOS tube Q3, and the negative terminal series resistance R14 of the voltage-stabiliser tube ZD2 connects motor reversal signal, the voltage-stabiliser tube
Node series capacitance C2 ground connection between ZD2 and resistance R14.
It, can be with by the parameter of setting resistance R7, capacitor C1, voltage-stabiliser tube ZD1, resistance R14, capacitor C2 and voltage-stabiliser tube ZD2
The Delayed conducting time is set, and in this specific embodiment, the pressure stabilizing value of the voltage-stabiliser tube ZD1 and ZD2 is disposed as 5.6V, resistance R7
It is disposed as 1K with the resistance value of R14, the capacitance of capacitor C1 and C2 are disposed as 0.47uF, exist to set the Delayed conducting time
500uS or so.But not limited to this.
It further, further include interlock circuit in this specific embodiment, the interlock circuit connects in H-bridge drive circuit
It rotates forward between input terminal and non-inverting input, realizes and interlocked between the rotating forward input terminal of H-bridge drive circuit and non-inverting input.Tool
Body, including the drain electrode of NMOS tube Q7 and NMOS tube Q8, the NMOS tube Q7 connects the node between voltage-stabiliser tube ZD1 and resistance R7,
The source electrode of the NMOS tube Q7 is grounded, and the gate series resistance R10 of the NMOS tube Q7 connects motor reversal signal, the NMOS tube
The drain electrode of Q8 connects the node between voltage-stabiliser tube ZD2 and resistance R14, and the source electrode of the NMOS tube Q8 is grounded, the NMOS tube Q8's
Gate series resistance R12 connects the positive rotaring signal of motor.
The course of work:
When the positive rotaring signal of motor has input (high level), first passes through resistance R7 and charge to capacitor C1, capacitor C1's
Voltage slowly rises, and charges to 5.6V or more after (delay 500uS) through after a period of time, voltage-stabiliser tube ZD1 is just connected, and electric current passes through
Voltage-stabiliser tube ZD1 flows to rear end, wherein driving NPN triode Q6 conducting all the way, the grid voltage of PMOS tube Q1 is drawn ground at this time, is
Low level, PMOS tube Q1 conducting, in addition driving NMOS tube Q4 conducting, motor rotate forward all the way, that is, realize Delayed conducting.
Meanwhile voltage can be by resistance R12 to the grid of NMOS tube Q8, NMOS tube Q8 is connected at this time, the voltage of capacitor C2
Discharged over the ground by NMOS tube Q8, NMOS tube Q8 is in the conductive state at this time, internal resistance very little, only need tens gsecs just open with
So that the voltage of capacitor C2 is down to 0 level, and then PMOS tube Q2 and NMOS tube Q3 is made to rapidly enter off state, realizes interlocking.
When motor reversal signal has input (high level), principle is same as above, and is referred to the above-mentioned course of work, this is no longer thin
It says.
The utility model makes the switching tube Delayed conducting of H-bridge drive circuit to be connected by increase delay turn-on circuit,
By increasing interlock circuit, ends the switching tube to be closed of H-bridge drive circuit in advance and realize interlocking, effectively prevent H bridge
The switching tube up and down of driving circuit, which simultaneously turns on, there is the case where power supply short circuit leads to burning machine, improves safety and reliability,
And circuit structure is simple, it is easy to accomplish.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (9)
1. a kind of circuit for controlling motor, including the H-bridge drive circuit for controlling motor positive and inverse, it is characterised in that: further include
The rotating forward input terminal of first delay turn-on circuit and the second delay turn-on circuit, the H-bridge drive circuit is led by the first delay
Circuit passband connects the positive rotaring signal of motor, and it is anti-that the non-inverting input of the H-bridge drive circuit by the second delay turn-on circuit connects motor
Rotaring signal.
2. circuit for controlling motor according to claim 1, it is characterised in that: the H-bridge drive circuit uses metal-oxide-semiconductor structure
At.
3. circuit for controlling motor according to claim 2, it is characterised in that: the H-bridge drive circuit include PMOS tube Q1,
PMOS tube Q2, NMOS tube Q3, NMOS tube Q4, NPN triode Q5 and NPN triode Q6, the source electrode of the PMOS tube Q1 connect power supply,
The drain electrode of the PMOS tube Q1 connects the drain electrode of NMOS tube Q3, and the gate series resistance R5 of the PMOS tube Q1 meets NPN triode Q6
Collector, while series resistance R2 connects power supply, the emitter ground connection of the NPN triode Q6, the source electrode of the NMOS tube Q3
Ground connection, the source electrode of the PMOS tube Q2 connect power supply, and the drain electrode of the PMOS tube Q2 meets the drain electrode of NMOS tube Q4, the PMOS tube Q2
Gate series resistance R6 connect the collector of NPN triode Q5, while series resistance R4 connects power supply, the NPN triode Q5's
Emitter ground connection, the source electrode ground connection of the NMOS tube Q4, the grid of the NMOS tube Q4 connect work with the base stage of NPN triode Q6
For the rotating forward input terminal of H-bridge drive circuit, the grid of the NMOS tube Q3 and the base stage of NPN triode Q5 are connected to the drive of H bridge
The non-inverting input of dynamic circuit, the node between the PMOS tube Q1 and NMOS tube Q3 connect the anode of motor M1, the PMOS tube
Node between Q2 and NMOS tube Q4 connects the negative terminal of motor M1.
4. circuit for controlling motor according to claim 1 or 2 or 3, it is characterised in that: the first delay turn-on circuit packet
The rotating forward input terminal of the positive termination H-bridge drive circuit of resistance R7, capacitor C1 and voltage-stabiliser tube ZD1, the voltage-stabiliser tube ZD1 is included, it is described
The negative terminal series resistance R7 of voltage-stabiliser tube ZD1 connects the positive rotaring signal of motor, the node series electrical between the voltage-stabiliser tube ZD1 and resistance R7
Hold C1 ground connection.
5. circuit for controlling motor according to claim 4, it is characterised in that: the pressure stabilizing value of the voltage-stabiliser tube ZD1 is 5.6V.
6. circuit for controlling motor according to claim 4, it is characterised in that: second delay turn-on circuit includes resistance
The non-inverting input of the positive termination H-bridge drive circuit of R14, capacitor C2 and voltage-stabiliser tube ZD2, the voltage-stabiliser tube ZD2, the voltage-stabiliser tube
The negative terminal series resistance R14 of ZD2 meets motor reversal signal, the node series capacitance C2 between the voltage-stabiliser tube ZD2 and resistance R14
Ground connection.
7. circuit for controlling motor according to claim 6, it is characterised in that: the pressure stabilizing value of the voltage-stabiliser tube ZD2 is 5.6V.
8. circuit for controlling motor according to claim 6, it is characterised in that: it further include interlock circuit, the interlock circuit
It connects between the rotating forward input terminal and non-inverting input of H-bridge drive circuit.
9. circuit for controlling motor according to claim 8, it is characterised in that: the interlock circuit include NMOS tube Q7 and
The drain electrode of NMOS tube Q8, the NMOS tube Q7 connect the node between voltage-stabiliser tube ZD1 and resistance R7, and the source electrode of the NMOS tube Q7 connects
Ground, the gate series resistance R10 of the NMOS tube Q7 connect motor reversal signal, and the drain electrode of the NMOS tube Q8 meets voltage-stabiliser tube ZD2
It is grounded with the source electrode of the node between resistance R14, the NMOS tube Q8, the gate series resistance R12 of the NMOS tube Q8 connects electricity
The positive rotaring signal of machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821611034.4U CN208849702U (en) | 2018-09-30 | 2018-09-30 | A kind of circuit for controlling motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821611034.4U CN208849702U (en) | 2018-09-30 | 2018-09-30 | A kind of circuit for controlling motor |
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| Publication Number | Publication Date |
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| CN208849702U true CN208849702U (en) | 2019-05-10 |
Family
ID=66375117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821611034.4U Active CN208849702U (en) | 2018-09-30 | 2018-09-30 | A kind of circuit for controlling motor |
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| CN (1) | CN208849702U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410552A (en) * | 2019-07-09 | 2019-11-05 | 广东美的制冷设备有限公司 | Four-way valve-driving circuit and air conditioner |
| CN110410557A (en) * | 2019-07-09 | 2019-11-05 | 广东美的制冷设备有限公司 | Four-way valve-driving circuit and air conditioner |
| CN114448296A (en) * | 2022-01-26 | 2022-05-06 | 深圳市太美亚电子科技有限公司 | Music magnetic suspension motor drive circuit |
-
2018
- 2018-09-30 CN CN201821611034.4U patent/CN208849702U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410552A (en) * | 2019-07-09 | 2019-11-05 | 广东美的制冷设备有限公司 | Four-way valve-driving circuit and air conditioner |
| CN110410557A (en) * | 2019-07-09 | 2019-11-05 | 广东美的制冷设备有限公司 | Four-way valve-driving circuit and air conditioner |
| CN114448296A (en) * | 2022-01-26 | 2022-05-06 | 深圳市太美亚电子科技有限公司 | Music magnetic suspension motor drive circuit |
| CN114448296B (en) * | 2022-01-26 | 2024-03-19 | 深圳市太美亚电子科技有限公司 | Music magnetic suspension motor driving circuit |
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