CN104052337B - Motor driving circuit - Google Patents
Motor driving circuit Download PDFInfo
- Publication number
- CN104052337B CN104052337B CN201310082924.6A CN201310082924A CN104052337B CN 104052337 B CN104052337 B CN 104052337B CN 201310082924 A CN201310082924 A CN 201310082924A CN 104052337 B CN104052337 B CN 104052337B
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- Prior art keywords
- driving tube
- outfan
- input
- tube
- driving
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Abstract
The invention brings forward a motor driving circuit. The motor driving circuit comprises a control module and a driving module, wherein the control module comprises a first output end, a second output end, a first input end, a second input end and a switch; a driving module which comprises a first driving tube, a second driving tube, a third driving tube and a fourth driving tube; the control ends of the first driving tube and the third driving tube are connected with the firs output end; the control ends of the second driving tube and the fourth driving tube are connected with the second output end; when the switch is connected with the first input end and the second output end, the control module controls the first driving tube and the fourth driving tube to be open, and a motor rotates forwards; and when the switch is connected with the second input end and the second output end, the control module controls the second driving tube and the third driving tube to be open, and the motor rotates reversely. According to the invention, the volume of the motor driving circuit can be reduced, and the life of the motor driving circuit is prolonged.
Description
Technical field
The present invention relates to a kind of electronic technology, more particularly, to a kind of motor-drive circuit.
Background technology
Motor-drive circuit in the market, is substantially and to be designed using relay, because relay volume is big,
Be unfavorable for integrated circuit miniaturization install, and relay be contacting, commonly used can be easily damaged, this allows for electricity
Drive circuit has certain life-span to limit.
Content of the invention
The technical problem to be solved in the present invention is to overcome the shortcomings of that above-mentioned prior art exists, and proposes a kind of motor and drive
Galvanic electricity road, can solve the problem that the problem that motor-drive circuit volume is larger, service life is shorter.
For solving above-mentioned technical problem, the present invention proposes a kind of motor-drive circuit, and it connects motor, and it includes：Control
Module, it includes the first outfan, the second outfan, first input end, the second input and switch element, first input end
Connect the first power supply, the second input end grounding, switch element be connected to the first outfan, the second outfan, first input end with
And second between input；Drive module, it includes the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving
Pipe, the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving tube all include control end, input and output
End, the control end of the control end of the first driving tube and the 3rd driving tube connects the first outfan, the control end of the second driving tube
And the 4th the control end of driving tube connect the second outfan, the input of the first driving tube and the second driving tube is all connected with the
Two power supplys, the outfan of the first driving tube connects the outfan of the 3rd driving tube, and the outfan of the second driving tube connects 4 wheel driven
The outfan of dynamic pipe, the input end grounding of the 3rd driving tube and the 4th driving tube, the outfan of motor connection first driving tube
And second driving tube outfan；When switch element connects first input end and the second outfan, control module controls
First driving tube and the 4th driving tube are opened, and the second driving tube and the 3rd driving tube are closed, and motor rotates forward, and works as switch
When unit connects the second input and the second outfan, control module controls the second driving tube and the 3rd driving tube to open,
First driving tube and the 4th driving tube are closed, and motor rotates backward.
Preferably, switch element includes：First resistor, second resistance, switch and switching tube, switch includes the first input
End, the second input and outfan, switching tube includes control end, input and outfan, and the first input end of switch is even
Connect the first input end of control module, the second input of the second input link control module of switch, the outfan of switch
For the second outfan of switch module, first resistor be connected to the first input end of control module and switching tube input it
Between, second resistance is connected between the outfan of switch and the control end of switching tube, the output head grounding of switching tube, switching tube
Input be switch module the first outfan.
Preferably, switching tube is audion, and the base stage of audion is the control end of switching tube, and the current collection of audion is extremely opened
Close the input of pipe, the outfan of the transmitting extremely switching tube of audion.
Preferably, the first driving tube of drive module and the second driving tube are P-channel metal-oxide-semiconductor, the 3rd driving tube and
4th driving tube is N-channel MOS pipe, and the control end of the first driving tube and the second driving tube is the grid of P-channel metal-oxide-semiconductor, the
The input of one driving tube and the second driving tube is the source electrode of P-channel metal-oxide-semiconductor, the first driving tube and the second driving tube defeated
Go out the drain electrode for P-channel metal-oxide-semiconductor for the end, the control end of the 3rd driving tube and the 4th driving tube is the grid of N-channel MOS pipe, the
The input of three driving tubes and the 4th driving tube is the drain electrode of N-channel MOS pipe, the 3rd driving tube and the 4th driving tube defeated
Go out the source electrode for N-channel MOS pipe for the end.
Preferably, the first driving tube of drive module and the second driving tube are NPN triode, the 3rd driving tube and the
Four driving tubes are PNP triode, and the control end of the first driving tube and the second driving tube is the base stage of NPN triode, the first drive
The input of dynamic pipe and the second driving tube is the colelctor electrode of NPN triode, the output of the first driving tube and the second driving tube
Hold the emitter stage for NPN triode, the control end of the 3rd driving tube and the 4th driving tube is the base stage of PNP triode, the 3rd
The input of driving tube and the 4th driving tube is the emitter stage of PNP triode, the 3rd driving tube and the 4th driving tube defeated
Go out the colelctor electrode for PNP triode for the end.
Preferably, drive module also includes 3rd resistor, the 4th resistance, the 5th resistance and the 6th resistance, 3rd resistor
It is connected between the control end of the first driving tube and the first outfan of control module, the 4th resistance is connected to the second driving tube
Control end and the second outfan of control module between, the 5th resistance is connected to control end and the control of the 3rd driving tube
Between first outfan of module, the 6th resistance is connected to the control end of the 4th driving tube and the first outfan of control module
Between.
Preferably, drive module also includes the first diode, the second diode, the 3rd diode and the 4th diode,
The negative electrode of the first diode connects the input of the first driving tube, and the anode of the first diode connects the output of the first driving tube
End, the negative electrode of the second diode connects the input of the second driving tube, and the anode of the second diode connects the defeated of the second driving tube
Go out end, the negative electrode of the 3rd diode connects the outfan of the 3rd driving tube, the anode of the 3rd diode connects the 3rd driving tube
Input, the negative electrode of the 4th diode connects the outfan of the 4th driving tube, and the anode of the 4th diode connects the 4th driving tube
Input.
Preferably, the magnitude of voltage of second source is higher than more than the magnitude of voltage 2V of the first power supply.
Compared with prior art, the motor-drive circuit of the present invention, by being used as switch using transistor, realizes contactless
On-off control, can reduce the volume of motor-drive circuit, and extend the life-span of motor-drive circuit.
Brief description
Fig. 1 is the circuit structure diagram of the motor-drive circuit of the present invention.
Description of reference numerals is as follows：Control module 1 switch element 11 switchs S1 first resistor R1 second resistance
R2 switching tube Q5 drive module 2 first driving tube Q1 the second driving tube Q2 the 3rd driving tube Q3 the 4th driving tube
Q4 3rd resistor R3 the 4th resistance R4 the 5th resistance R5 the 6th resistance R6 the first diode D1 the second diode
D2 the 3rd diode D3 the 4th diode D4 motor 3 first power supply VL second source VH.
Specific embodiment
In order to further illustrate principle and the structure of the present invention, in conjunction with accompanying drawing, the preferred embodiments of the present invention are carried out in detail
Describe in detail bright.
Refer to Fig. 1, motor 3 drive circuit of the present invention, it connects motor 3, including：Control module 1 and driving mould
Block 2.Control module 1 connects drive module 2, and control module 1 controls drive module 2, and drive module 2 motor 3 works.
Control module 1 includes the first outfan, the second outfan, first input end, the second input and switch element
11.Switch element 11 includes switching S1, first resistor R1, second resistance R2 and switching tube Q5.Switch S1 includes the first input
End, the second input and outfan.Switching tube Q5 includes control end, input and outfan.The first of control module 1 is defeated
Enter end and connect the first power supply VL, the second input end grounding.First input of the first input end link control module 1 of switch S1
End, the second input of the second input link control module 1 of switch S1, the outfan of switch S1 is the second of switch module
Outfan, first resistor R1 is connected between the first input end of control module 1 and the input of switching tube Q5, second resistance
R2 is connected between outfan and the control end of switching tube Q5 of switch S1, the output head grounding of switching tube Q5, switching tube Q5
Input be switch module the first outfan.
Drive module 2 include the first driving tube Q1, the second driving tube Q2, the 3rd driving tube Q3, the 4th driving tube Q4, the 3rd
Resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first diode D1, the second diode D2, the 3rd diode
D3 and the 4th diode D4.First driving tube Q1, the second driving tube Q2, the 3rd driving tube Q3 and the 4th driving tube Q4 all wrap
Include control end, input and outfan.The control end of the control end of the first driving tube Q1 and the 3rd driving tube Q3 connects the
One outfan, the control end of the control end of the second driving tube Q2 and the 4th driving tube Q4 connects the second outfan, the first driving
The input of pipe Q1 and the second driving tube Q2 is all connected with second source VH, and the outfan of the first driving tube Q1 connects the 3rd driving
The outfan of pipe Q3, the outfan of the second driving tube Q2 connects the outfan of the 4th driving tube Q4, the 3rd driving tube Q3 and the
The input end grounding of four driving tube Q4, motor 3 connects the outfan of the first driving tube Q1 and the outfan of the second driving tube Q2.
In the present embodiment, the first driving tube Q1 and the second driving tube Q2 of drive module 2 are P-channel metal-oxide-semiconductor, the 3rd drive
Dynamic pipe Q3 and the 4th driving tube Q4 is N-channel MOS pipe.The control end of the first driving tube Q1 and the second driving tube Q2 is P ditch
The grid of road metal-oxide-semiconductor, the input of the first driving tube Q1 and the second driving tube Q2 is the source electrode of P-channel metal-oxide-semiconductor, the first driving
The outfan of pipe Q1 and the second driving tube Q2 is the drain electrode of P-channel metal-oxide-semiconductor.3rd driving tube Q3's and the 4th driving tube Q4
Control end is the grid of N-channel MOS pipe, and the input of the 3rd driving tube Q3 and the 4th driving tube Q4 is the leakage of N-channel MOS pipe
Pole, the outfan of the 3rd driving tube Q3 and the 4th driving tube Q4 is the source electrode of N-channel MOS pipe.
In other embodiments, the first driving tube Q1 and the second driving tube Q2 of drive module 2 is NPN triode, the
Three driving tube Q3 and the 4th driving tube Q4 are PNP triode.The control end of the first driving tube Q1 and the second driving tube Q2 is
The base stage of NPN triode, the input of the first driving tube Q1 and the second driving tube Q2 is the colelctor electrode of NPN triode, first
The outfan of driving tube Q1 and the second driving tube Q2 is the emitter stage of NPN triode.3rd driving tube Q3 and the 4th driving
The control end of pipe Q4 is the base stage of PNP triode, and the input of the 3rd driving tube Q3 and the 4th driving tube Q4 is PNP triode
Emitter stage, the outfan of the 3rd driving tube Q3 and the 4th driving tube Q4 is the colelctor electrode of PNP triode.
3rd resistor R3 is connected between the control end of the first driving tube Q1 and the first outfan of control module 1, the
Four resistance R4 are connected between the control end of the second driving tube Q2 and the second outfan of control module 1, and the 5th resistance R5 is even
It is connected between the control end of the 3rd driving tube Q3 and the first outfan of control module 1, the 6th resistance R6 is connected to 4 wheel driven
Between the control end of dynamic pipe Q4 and the first outfan of control module 1.
The negative electrode of the first diode D1 connects the input of the first driving tube Q1, and the anode of the first diode D1 connects first
The outfan of driving tube Q1, the negative electrode of the second diode D2 connects the input of the second driving tube Q2, the sun of the second diode D2
The outfan of pole connection the second driving tube Q2, the outfan of negative electrode connection the 3rd driving tube Q3 of the 3rd diode D3, the three or two
The anode of pole pipe D3 connects the input of the 3rd driving tube Q3, and the negative electrode of the 4th diode D4 connects the output of the 4th driving tube Q4
End, the anode of the 4th diode D4 connects the input of the 4th driving tube Q4.First diode D1, the second diode D2, the 3rd
Diode D3 and the 4th diode D4, can regard it as because d.c. motor is inductance element as fly-wheel diode
It is an inductance, in order to ensure when motor shuts down, the electric current of motor Inside coil has the path can be with afterflow（Earial drainage）, make
The induced voltage of motor is clamped in the voltage of setting.Without these fly-wheel diodes, motor is in work（Commutation）Or
The moment that person stops, inverse electromotive force spike can be produced, electromotive force spike too high can also breakdown transistors, so the mesh of diode
Be that inverse electromotive force spike is released, clamper is about the voltage setting it is ensured that the safe and reliable work of all driving tubes.
In this enforcement, switching tube Q5 is audion, and the base stage of audion is the control end of switching tube Q5, the current collection of audion
The extremely input of switching tube Q5, the transmitting extremely outfan of switching tube Q5 of audion.Wherein, first resistor R1 is audion
Colelctor electrode current-limiting resistance, the base stage of audion should be enable to have suitable electric current for the value of second resistance R2 it is ensured that audion
Saturation conduction.3rd resistor R3, the 4th resistance R4, the 5th resistance R5 and the biasing resistor that the 6th resistance R6 is this driving tube.
In the present embodiment, the magnitude of voltage of second source VH is higher than more than the magnitude of voltage 2V of the first power supply VL.
To describe the operation principle of the present invention with reference to Fig. 1 in detail.
Connect first input end and during the second outfan when switching S1, control module 1 control the first driving tube Q1 and
4th driving tube Q4 opens, and the second driving tube Q2 and the 3rd driving tube Q3 closes, and motor 3 rotates forward, when switch S1 connects
When the second input and the second outfan, control module 1 controls the second driving tube Q2 and the 3rd driving tube Q3 to open, and first
Driving tube Q1 and the 4th driving tube Q4 closes, and motor 3 rotates backward.
Specifically, when switching S1 connection 1,3 foot, audion saturation conduction, the first outfan is low-voltage, promotes first
Driving tube Q1 turns on, the second driving tube Q2 cut-off, and the second outfan is high voltage, promotes the 4th driving tube Q4 conducting, the 3rd drive
Dynamic pipe Q3 cut-off, motor 3 rotates forward；When switching S1 and connecting 1,2 foot, audion ends, and the first outfan is high voltage, promotes the
Two driving tube Q2 conductings, the first driving tube Q1 cut-off, the second outfan is low-voltage, promotes the 3rd driving tube Q3 to turn on, the 4th
Driving tube Q4 ends, and motor 3 inverts.
Compared with prior art, the motor-drive circuit of the present invention, by being used as switch using transistor, realizes contactless
On-off control, can reduce the volume of motor-drive circuit, and extend the life-span of motor-drive circuit.
The foregoing is only the preferable possible embodiments of the present invention, not limit the scope of the invention.All utilizations are originally
Equivalent structure change done by description of the invention and accompanying drawing content, is all contained in protection scope of the present invention.
Claims (7)
1. a kind of motor-drive circuit, it connects described motor it is characterised in that it includes：
Control module, it includes the first outfan, the second outfan, first input end, the second input and switch element, institute
State first input end connect the first power supply, described second input end grounding, described switch element be connected to described first outfan,
Between second outfan, first input end and the second input, wherein, described switch element includes：First resistor, the second electricity
Resistance, switch and switching tube, described switch includes first input end, the second input and outfan, and described switching tube includes
Control end, input and outfan, the first input end of described switch connects the first input end of described control module, described
Second input of switch connects the second input of described control module, and the outfan of described switch is described switch module
Second outfan, described first resistor is connected between the first input end of described control module and the input of switching tube,
Described second resistance is connected between the outfan of described switch and the control end of switching tube, the output termination of described switching tube
Ground, the input of described switching tube is the first outfan of described switch module；
Drive module, it includes the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving tube, described first drive
Dynamic pipe, the second driving tube, the 3rd driving tube and the 4th driving tube all include control end, input and outfan, and described the
The control end of the control end of one driving tube and described 3rd driving tube connects described first outfan, described second driving tube
The control end of control end and described 4th driving tube connects described second outfan, described first driving tube and the second driving
The input of pipe is all connected with second source, and the outfan of described first driving tube connects the outfan of described 3rd driving tube, institute
The outfan stating the second driving tube connects the outfan of described 4th driving tube, described 3rd driving tube and the 4th driving tube
Input end grounding, the outfan of the outfan of the first driving tube and the second driving tube described in described motor connection；
When described switch element connects described first input end and described second outfan, described control module controls described
First driving tube and the 4th driving tube are opened, and described second driving tube and the 3rd driving tube are closed, and motor rotates forward, when
When described switch element connects described second input and described second outfan, described control module controls described second drive
Dynamic pipe and the 3rd driving tube are opened, and described first driving tube and the 4th driving tube are closed, and motor rotates backward.
2. motor-drive circuit as claimed in claim 1 it is characterised in that described switching tube be audion, described audion
Base stage be described switching tube control end, the input of the extremely described switching tube of current collection of described audion, described audion
The extremely described switching tube of transmitting outfan.
3. motor-drive circuit as claimed in claim 1 is it is characterised in that the first driving tube of described drive module and
Two driving tubes are P-channel metal-oxide-semiconductor, and described 3rd driving tube and the 4th driving tube are N-channel MOS pipe, described first driving tube
And second driving tube control end be described P-channel metal-oxide-semiconductor grid, described first driving tube and the second driving tube defeated
Enter the source electrode for described P-channel metal-oxide-semiconductor for the end, the outfan of described first driving tube and the second driving tube is described P-channel MOS
The drain electrode of pipe, the control end of described 3rd driving tube and the 4th driving tube is the grid of described N-channel MOS pipe, the described 3rd
The input of driving tube and the 4th driving tube is the drain electrode of described N-channel MOS pipe, and described 3rd driving tube and the 4th drives
The outfan of pipe is the source electrode of described N-channel MOS pipe.
4. motor-drive circuit as claimed in claim 1 is it is characterised in that the first driving tube of described drive module and
Two driving tubes are NPN triode, and described 3rd driving tube and the 4th driving tube are PNP triode, described first driving tube with
And second driving tube control end be described NPN triode base stage, the input of described first driving tube and the second driving tube
Hold the colelctor electrode for described NPN triode, the outfan of described first driving tube and the second driving tube is described NPN triode
Emitter stage, the control end of described 3rd driving tube and the 4th driving tube is the base stage of described PNP triode, described 3rd drive
The input of dynamic pipe and the 4th driving tube is the emitter stage of described PNP triode, and described 3rd driving tube and the 4th drives
The outfan of pipe is the colelctor electrode of described PNP triode.
5. motor-drive circuit as claimed in claim 1 it is characterised in that described drive module also include 3rd resistor,
Four resistance, the 5th resistance and the 6th resistance, described 3rd resistor is connected to the control end of described first driving tube and described
Between first outfan of control module, described 4th resistance is connected to the control end of described second driving tube and described control
Between second outfan of module, described 5th resistance is connected to the control end of described 3rd driving tube and described control module
The first outfan between, described 6th resistance is connected to the control end of described 4th driving tube and the of described control module
Between one outfan.
6. motor-drive circuit as claimed in claim 1 it is characterised in that described drive module also include the first diode,
Second diode, the 3rd diode and the 4th diode, the negative electrode of described first diode connects described first driving tube
Input, the anode of described first diode connects the outfan of described first driving tube, and the negative electrode of described second diode is even
Connect the input of described second driving tube, the anode of described second diode connects the outfan of described second driving tube, described
The negative electrode of the 3rd diode connects the outfan of described 3rd driving tube, and the anode of described 3rd diode connects described 3rd drive
The input of dynamic pipe, the negative electrode of described 4th diode connects the outfan of described 4th driving tube, described 4th diode
Anode connects the input of described 4th driving tube.
7. motor-drive circuit as claimed in claim 1 is it is characterised in that the magnitude of voltage of described second source is higher than described the
More than the magnitude of voltage 2V of one power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082924.6A CN104052337B (en) | 2013-03-15 | 2013-03-15 | Motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082924.6A CN104052337B (en) | 2013-03-15 | 2013-03-15 | Motor driving circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104052337A CN104052337A (en) | 2014-09-17 |
| CN104052337B true CN104052337B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082924.6A Expired - Fee Related CN104052337B (en) | 2013-03-15 | 2013-03-15 | Motor driving circuit |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796018B (en) * | 2015-05-19 | 2019-07-12 | 上海斐讯数据通信技术有限公司 | A kind of rectification circuit and its method for rectifying |
| CN105932768A (en) * | 2016-06-15 | 2016-09-07 | 傅兴琴 | Supercapacitor based distribution box switching power supply system |
| CN111338428A (en) * | 2018-12-18 | 2020-06-26 | 宏碁股份有限公司 | Notebook computer capable of improving heat dissipation capacity through over-frequency keys |
| CN110504824B (en) * | 2019-09-05 | 2024-03-05 | 厦门厦华科技有限公司 | Dual-switching-tube-driven current equalizing circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842872Y (en) * | 2005-10-13 | 2006-11-29 | 比亚迪股份有限公司 | DC motor with control circuit |
| CN102158144A (en) * | 2011-04-12 | 2011-08-17 | 深圳市蓝韵实业有限公司 | Micromotor drive circuit of automatic aperture of digital gastrointestinal machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6450776A (en) * | 1987-08-19 | 1989-02-27 | Nec Corp | Dc motor driving circuit |
| JP4572967B2 (en) * | 2008-07-25 | 2010-11-04 | パナソニック電工株式会社 | Single-phase brushless DC motor drive circuit |
-
2013
- 2013-03-15 CN CN201310082924.6A patent/CN104052337B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842872Y (en) * | 2005-10-13 | 2006-11-29 | 比亚迪股份有限公司 | DC motor with control circuit |
| CN102158144A (en) * | 2011-04-12 | 2011-08-17 | 深圳市蓝韵实业有限公司 | Micromotor drive circuit of automatic aperture of digital gastrointestinal machine |
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| CN104052337A (en) | 2014-09-17 |
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