CN104052337A - Motor driving circuit - Google Patents
Motor driving circuit Download PDFInfo
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- CN104052337A CN104052337A CN201310082924.6A CN201310082924A CN104052337A CN 104052337 A CN104052337 A CN 104052337A CN 201310082924 A CN201310082924 A CN 201310082924A CN 104052337 A CN104052337 A CN 104052337A
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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, relate in particular to a kind of motor-drive circuit.
Background technology
Motor-drive circuit in the market, substantially all adopts relay to design, because relay volume is large, the miniaturization that is unfavorable for integrated circuit is installed, and relay is contacting, often use and can easily damage, this just makes motor-drive circuit have certain age limit.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that above-mentioned prior art exists, and proposes a kind of motor-drive circuit, can solve that motor-drive circuit volume is large, useful life shorter problem.
For solving the problems of the technologies described above, the present invention proposes a kind of motor-drive circuit, it connects motor, it comprises: control module, it comprises the first output, the second output, first input end, the second input and switch element, first input end connects the first power supply, the second input end grounding, and switch element is connected between the first output, the second output, first input end and the second input, driver module, it comprises the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving tube, the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving tube include control end, input and output, the control end of the control end of the first driving tube and the 3rd driving tube connects the first output, the control end of the control end of the second driving tube and the 4th driving tube connects the second output, the input of the first driving tube and the second driving tube all connects second source, the output of the first driving tube connects the output of the 3rd driving tube, the output of the second driving tube connects the output of the 4th driving tube, the input end grounding of the 3rd driving tube and the 4th driving tube, motor connects the output of the first driving tube and the output of the second driving tube, in the time that switch element is connected first input end and the second output, control module control the first driving tube and the 4th driving tube are opened, the second driving tube and the 3rd driving tube are closed, motor forward rotation, in the time that switch element is connected the second input and the second output, control module control the second driving tube and the 3rd driving tube are opened, and the first driving tube and the 4th driving tube are closed, and motor rotates backward.
Preferably, switch element comprises: the first resistance, the second resistance, switch and switching tube, switch comprises first input end, the second input and output, switching tube comprises control end, input and output, the first input end of the first input end link control module of switch, the second input of the second input link control module of switch, the output of switch is the second output of switch module, the first resistance is connected between the first input end of control module and the input of switching tube, the second resistance is connected between the output of switch and the control end of switching tube, the output head grounding of switching tube, the input of switching tube is the first output of switch module.
Preferably, switching tube is triode, the control end that the base stage of triode is switching tube, and the current collection of triode is the input of switching tube very, and the transmitting of triode is the output of switching tube very.
Preferably, the first driving tube of driver module and the second driving tube are P channel MOS tube, the 3rd driving tube and the 4th driving tube are N-channel MOS pipe, the control end of the first driving tube and the second driving tube is the grid of P channel MOS tube, the input of the first driving tube and the second driving tube is the source electrode of P channel MOS tube, the output of the first driving tube and the second driving tube is the drain electrode of P channel MOS tube, the control end of the 3rd driving tube and the 4th driving tube is the grid of N-channel MOS pipe, the input of the 3rd driving tube and the 4th driving tube is the drain electrode of N-channel MOS pipe, the output of the 3rd driving tube and the 4th driving tube is the source electrode of N-channel MOS pipe.
Preferably, the first driving tube of driver module and the second driving tube are NPN triode, the 3rd driving tube and the 4th driving tube are PNP triode, the control end of the first driving tube and the second driving tube is the base stage of NPN triode, the input of the first driving tube and the second driving tube is the collector electrode of NPN triode, the output of the first driving tube and the second driving tube is the emitter of NPN triode, the control end of the 3rd driving tube and the 4th driving tube is the base stage of PNP triode, the input of the 3rd driving tube and the 4th driving tube is the emitter of PNP triode, the output of the 3rd driving tube and the 4th driving tube is the collector electrode of PNP triode.
Preferably, driver module also comprises the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance, the 3rd resistance is connected between the control end of the first driving tube and the first output of control module, the 4th resistance is connected between the control end of the second driving tube and the second output of control module, the 5th resistance is connected between the control end of the 3rd driving tube and the first output of control module, and the 6th resistance is connected between the control end of the 4th driving tube and the first output of control module.
Preferably, driver module also comprises 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, the output of anodic bonding first driving tube of the first diode, the negative electrode of the second diode connects the input of the second driving tube, the output of anodic bonding second driving tube of the second diode, the negative electrode of the 3rd diode connects the output of the 3rd driving tube, the input of the anodic bonding of the 3rd diode the 3rd driving tube, the negative electrode of the 4th diode connects the output of the 4th driving tube, the input of the anodic bonding of the 4th diode the 4th driving tube.
Preferably, more than the magnitude of voltage 2V of the magnitude of voltage of second source higher than the first power supply.
Compared with prior art, motor-drive circuit of the present invention, by adopting transistor as switch, realizes noncontacting switch control, can reduce the volume of motor-drive circuit, and extend the life-span of motor-drive circuit.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of motor-drive circuit of the present invention.
Description of reference numerals is as follows: control module 1 switch element 11 switch S 1 first resistance R 1 second resistance R 2 switching tube Q5 driver module 2 first driving tube Q1 second driving tube Q2 the 3rd driving tube Q3 the 4th driving tube Q4 the 3rd resistance R 3 the 4th resistance R 4 the 5th resistance R 5 the 6th resistance R 6 first diode D1 the second diode D2 the 3rd diode D3 the 4th diode D4 motor 3 first power supply VL second source VH.
Embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Refer to Fig. 1, motor 3 drive circuits of the present invention, it connects motor 3, comprising: control module 1 and driver module 2.Control module 1 connects driver module 2, and control module 1 is controlled driver module 2, and driver module 2 drive motors 3 are worked.
Control module 1 comprises the first output, the second output, first input end, the second input and switch element 11.Switch element 11 comprises switch S 1, the first resistance R 1, the second resistance R 2 and switching tube Q5.Switch S 1 comprises first input end, the second input and output.Switching tube Q5 comprises control end, input and output.The first input end of control module 1 connects the first power supply VL, the second input end grounding.The first input end of the first input end link control module 1 of switch S 1, the second input of the second input link control module 1 of switch S 1, the output of switch S 1 is the second output of switch module, the first resistance R 1 is connected between the first input end of control module 1 and the input of switching tube Q5, the second resistance R 2 is connected between the output of switch S 1 and the control end of switching tube Q5, the output head grounding of switching tube Q5, the first output that the input of switching tube Q5 is switch module.
Driver module 2 comprises the first driving tube Q1, the second driving tube Q2, the 3rd driving tube Q3, the 4th driving tube Q4, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4.The first driving tube Q1, the second driving tube Q2, the 3rd driving tube Q3 and the 4th driving tube Q4 include control end, input and output.The control end of the control end of the first driving tube Q1 and the 3rd driving tube Q3 connects the first output, the control end of the control end of the second driving tube Q2 and the 4th driving tube Q4 connects the second output, the input of the first driving tube Q1 and the second driving tube Q2 all connects second source VH, the output of the first driving tube Q1 connects the output of the 3rd driving tube Q3, the output of the second driving tube Q2 connects the output of the 4th driving tube Q4, the input end grounding of the 3rd driving tube Q3 and the 4th driving tube Q4, motor 3 connects the output of the first driving tube Q1 and the output of the second driving tube Q2.
In the present embodiment, the first driving tube Q1 and the second driving tube Q2 of driver module 2 are P channel MOS tube, and the 3rd driving tube Q3 and the 4th driving tube Q4 are N-channel MOS pipe.The control end of the first driving tube Q1 and the second driving tube Q2 is the grid of P channel MOS tube, the input of the first driving tube Q1 and the second driving tube Q2 is the source electrode of P channel MOS tube, and the output of the first driving tube Q1 and the second driving tube Q2 is the drain electrode of P channel MOS tube.The control end of the 3rd driving tube Q3 and the 4th driving tube Q4 is the grid of N-channel MOS pipe, the input of the 3rd driving tube Q3 and the 4th driving tube Q4 is the drain electrode of N-channel MOS pipe, and the output 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 driver module 2 are NPN triode, and the 3rd 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 collector electrode of NPN triode, and the output of the first driving tube Q1 and the second driving tube Q2 is the emitter of NPN triode.The control end of the 3rd driving tube Q3 and the 4th driving tube Q4 is the base stage of PNP triode, the input of the 3rd driving tube Q3 and the 4th driving tube Q4 is the emitter of PNP triode, and the output of the 3rd driving tube Q3 and the 4th driving tube Q4 is the collector electrode of PNP triode.
The 3rd resistance R 3 is connected between the control end of the first driving tube Q1 and the first output of control module 1, the 4th resistance R 4 is connected between the control end of the second driving tube Q2 and the second output of control module 1, the 5th resistance R 5 is connected between the control end of the 3rd driving tube Q3 and the first output of control module 1, and the 6th resistance R 6 is connected between the control end of the 4th driving tube Q4 and the first output of control module 1.
The negative electrode of the first diode D1 connects the input of the first driving tube Q1, the output of anodic bonding the first driving tube Q1 of the first diode D1, the negative electrode of the second diode D2 connects the input of the second driving tube Q2, the output of anodic bonding the second driving tube Q2 of the second diode D2, the negative electrode of the 3rd diode D3 connects the output of the 3rd driving tube Q3, the input of the anodic bonding of the 3rd diode D3 the 3rd driving tube Q3, the negative electrode of the 4th diode D4 connects the output of the 4th driving tube Q4, the input of the anodic bonding of the 4th diode D4 the 4th driving tube Q4.The first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4 can be used as fly-wheel diode, because d.c. motor is inductance element, it can be regarded as to an inductance, in order to ensure in the time that motor shuts down, the electric current of motor Inside coil has the path can afterflow (earial drainage), and the induced voltage of motor is clamped in the voltage of setting.If there is no these fly-wheel diodes, motor is in the moment of working (commutation) or stopping, can produce inverse electromotive force spike, electromotive force spike is too high can also breakdown transistors, so the object of diode is that inverse electromotive force spike is released, clamper, in the voltage left and right of setting, ensures the safe and reliable work of all driving tubes.
In this enforcement, switching tube Q5 is triode, and the base stage of triode is the control end of switching tube Q5, and the current collection of triode is the input of switching tube Q5 very, and the transmitting of triode is the output of switching tube Q5 very.Wherein, the current-limiting resistance of the collector electrode that the first resistance R 1 is triode, the value of the second resistance R 2 should make the base stage of triode have suitable electric current, guarantees triode energy saturation conduction.The biasing resistor that the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 and the 6th resistance R 6 are this driving tube.
In the present embodiment, more than the magnitude of voltage 2V of the magnitude of voltage of second source VH higher than the first power supply VL.
Describe operation principle of the present invention in detail below in conjunction with Fig. 1.
In the time that switch S 1 is connected first input end and the second output, control module 1 controls the first driving tube Q1 and the 4th driving tube Q4 opens, the second driving tube Q2 and the 3rd driving tube Q3 close, motor 3 forward rotation, in the time that switch S 1 is connected the second input and the second output, control module 1 controls the second driving tube Q2 and the 3rd driving tube Q3 opens, and the first driving tube Q1 and the 4th driving tube Q4 close, and motor 3 rotates backward.
Be specially, when switch S 1 connects 1, when 3 pin, triode saturation conduction, the first output is low-voltage, impel the first driving tube Q1 conducting, the second driving tube Q2 cut-off, the second output is high voltage, impel the 4th driving tube Q4 conducting, the 3rd driving tube Q3 cut-off, motor 3 forwards; When switch S 1 connects 1, when 2 pin, triode cut-off, the first output is high voltage, impels the second driving tube Q2 conducting, the first driving tube Q1 cut-off, the second output is low-voltage, impels the 3rd driving tube Q3 conducting, the 4th driving tube Q4 cut-off, motor 3 reverses.
Compared with prior art, motor-drive circuit of the present invention, by adopting transistor as switch, realizes noncontacting switch control, can reduce the volume of motor-drive circuit, and extend the life-span of motor-drive circuit.
The foregoing is only better possible embodiments of the present invention, not limit the scope of the invention.The equivalent structure that all utilizations specification of the present invention and accompanying drawing content have been done changes, and is all included in protection scope of the present invention.
Claims (8)
1. a motor-drive circuit, it connects described motor, it is characterized in that, and it comprises:
Control module, it comprises the first output, the second output, first input end, the second input and switch element, described first input end connects the first power supply, described the second input end grounding, described switch element is connected between described the first output, the second output, first input end and the second input;
Driver module, it comprises the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving tube, described the first driving tube, the second driving tube, the 3rd driving tube and the 4th driving tube include control end, input and output, the control end of the control end of described the first driving tube and described the 3rd driving tube connects described the first output, the control end of the control end of described the second driving tube and described the 4th driving tube connects described the second output, the input of described the first driving tube and the second driving tube all connects second source, the output of described the first driving tube connects the output of described the 3rd driving tube, the output of described the second driving tube connects the output of described the 4th driving tube, the input end grounding of described the 3rd driving tube and the 4th driving tube, described motor connects the output of described the first driving tube and the output of the second driving tube,
In the time that described switch element is connected described first input end and described the second output, described in described control module control, the first driving tube and the 4th driving tube are opened, described the second driving tube and the 3rd driving tube are closed, motor forward rotation, in the time that described switch element is connected described the second input and described the second output, described in described control module control, the second driving tube and the 3rd driving tube are opened, and described the 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 characterized in that, described switch element comprises: the first resistance, the second resistance, switch and switching tube, described switch comprises first input end, the second input and output, described switching tube comprises control end, input and output, the first input end of described switch connects the first input end of described control module, the second input of described switch connects the second input of described control module, the output of described switch is the second output of described switch module, described the first resistance is connected between the first input end of described control module and the input of switching tube, described the second resistance is connected between the output of described switch and the control end of switching tube, the output head grounding of described switching tube, the input of described switching tube is the first output of described switch module.
3. motor-drive circuit as claimed in claim 2, it is characterized in that, described switching tube is triode, the control end that the base stage of described triode is described switching tube, the input of the very described switching tube of the current collection of described triode, the output of the very described switching tube of the transmitting of described triode.
4. motor-drive circuit as claimed in claim 1, it is characterized in that, the first driving tube of described driver module and the second driving tube are P channel MOS tube, described the 3rd driving tube and the 4th driving tube are N-channel MOS pipe, the control end of described the first driving tube and the second driving tube is the grid of described P channel MOS tube, the input of described the first driving tube and the second driving tube is the source electrode of described P channel MOS tube, the output of described the first driving tube and the second driving tube is the drain electrode of described P channel MOS tube, the control end of described the 3rd driving tube and the 4th driving tube is the grid of described N-channel MOS pipe, the input of described the 3rd driving tube and the 4th driving tube is the drain electrode of described N-channel MOS pipe, the output of described the 3rd driving tube and the 4th driving tube is the source electrode of described N-channel MOS pipe.
5. motor-drive circuit as claimed in claim 1, it is characterized in that, the first driving tube of described driver module and the second driving tube are NPN triode, described the 3rd driving tube and the 4th driving tube are PNP triode, the control end of described the first driving tube and the second driving tube is the base stage of described NPN triode, the input of described the first driving tube and the second driving tube is the collector electrode of described NPN triode, the output of described the first driving tube and the second driving tube is the emitter of described NPN triode, the control end of described the 3rd driving tube and the 4th driving tube is the base stage of described PNP triode, the input of described the 3rd driving tube and the 4th driving tube is the emitter of described PNP triode, the output of described the 3rd driving tube and the 4th driving tube is the collector electrode of described PNP triode.
6. motor-drive circuit as claimed in claim 1, it is characterized in that, described driver module also comprises the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance, described the 3rd resistance is connected between the control end of described the first driving tube and the first output of described control module, described the 4th resistance is connected between the control end of described the second driving tube and the second output of described control module, described the 5th resistance is connected between the control end of described the 3rd driving tube and the first output of described control module, described the 6th resistance is connected between the control end of described the 4th driving tube and the first output of described control module.
7. motor-drive circuit as claimed in claim 1, it is characterized in that, described driver module also comprises the first diode, the second diode, the 3rd diode and the 4th diode, the negative electrode of described the first diode connects the input of described the first driving tube, the output of the first driving tube described in the anodic bonding of described the first diode, the negative electrode of described the second diode connects the input of described the second driving tube, the output of the second driving tube described in the anodic bonding of described the second diode, the negative electrode of described the 3rd diode connects the output of described the 3rd driving tube, the input of the 3rd driving tube described in the anodic bonding of described the 3rd diode, the negative electrode of described the 4th diode connects the output of described the 4th driving tube, the input of the 4th driving tube described in the anodic bonding of described the 4th diode.
8. motor-drive circuit as claimed in claim 1, is characterized in that, more than the magnitude of voltage 2V of the magnitude of voltage of described second source higher than described the first 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 |
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| CN104052337A true CN104052337A (en) | 2014-09-17 |
| CN104052337B CN104052337B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310082924.6A Expired - Fee Related CN104052337B (en) | 2013-03-15 | 2013-03-15 | Motor driving circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796018A (en) * | 2015-05-19 | 2015-07-22 | 上海斐讯数据通信技术有限公司 | Rectifying circuit and rectifying method thereof |
| CN105932768A (en) * | 2016-06-15 | 2016-09-07 | 傅兴琴 | Supercapacitor based distribution box switching power supply system |
| CN110504824A (en) * | 2019-09-05 | 2019-11-26 | 厦门厦华科技有限公司 | A kind of flow equalizing circuit of dual switch driving |
| 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 |
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| JPS6450776A (en) * | 1987-08-19 | 1989-02-27 | Nec Corp | Dc motor driving circuit |
| CN2842872Y (en) * | 2005-10-13 | 2006-11-29 | 比亚迪股份有限公司 | DC motor with control circuit |
| US20100019704A1 (en) * | 2008-07-25 | 2010-01-28 | Panasonic Electric Works, Co., Ltd. | Single-phase brushless DC motor drive 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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2013
- 2013-03-15 CN CN201310082924.6A patent/CN104052337B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6450776A (en) * | 1987-08-19 | 1989-02-27 | Nec Corp | Dc motor driving circuit |
| CN2842872Y (en) * | 2005-10-13 | 2006-11-29 | 比亚迪股份有限公司 | DC motor with control circuit |
| US20100019704A1 (en) * | 2008-07-25 | 2010-01-28 | Panasonic Electric Works, Co., Ltd. | Single-phase brushless DC motor drive 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796018A (en) * | 2015-05-19 | 2015-07-22 | 上海斐讯数据通信技术有限公司 | Rectifying circuit and rectifying method thereof |
| 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 |
| CN110504824A (en) * | 2019-09-05 | 2019-11-26 | 厦门厦华科技有限公司 | A kind of flow equalizing circuit of dual switch driving |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104052337B (en) | 2017-02-08 |
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Granted publication date: 20170208 Termination date: 20190315 |