CN104052349A - Motor control circuit and electronic device - Google Patents
Motor control circuit and electronic device Download PDFInfo
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- CN104052349A CN104052349A CN201310082786.1A CN201310082786A CN104052349A CN 104052349 A CN104052349 A CN 104052349A CN 201310082786 A CN201310082786 A CN 201310082786A CN 104052349 A CN104052349 A CN 104052349A
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- triode
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Abstract
The embodiment of the invention discloses a method of a motor control circuit. The circuit comprises a level generating circuit, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first triode Q, a second triode Q2, a third triode Q3, a fourth triode Q4, a fifth triode Q5, a sixth triode Q6 and a motor M1. The embodiment of the invention also discloses an electronic device. By adopting the method and the device, the reliability of a driving circuit can be improved.
Description
Technical field
The present invention relates to circuit field, relate in particular to a kind of circuit for controlling motor and electronic equipment.
Background technology
Motor needs rotating in routine use, can say that the rotating of motor is being widely used.For example driving, the electric facing-machine used of carpenter, bench drill, weaving done in fine silks and gold thread by the tapestry method machine, drier, lathe etc.A lot of circuit for controlling motor, adopt Control substantially in the market, are unfavorable for greatly that the miniaturization of integrated circuit is installed due to relay volume, and relay is in use easily wearing and tearing of contact, cause the problem of loose contact, the poor reliability of circuit.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of circuit for controlling motor and electronic equipment are provided.Can solve the not high deficiency of circuit for controlling motor reliability that uses relay in prior art.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of circuit for controlling motor, comprising:
Level produces circuit, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first triode Q, the second triode Q2, the 3rd triode Q3, the 4th triode Q4, the 5th triode Q5, the 6th triode Q6 and motor M 1, wherein,
The K1 output that described level produces circuit is connected with the base stage of described the first triode Q1 by described the first resistance R 1, and the K2 output of this pulse generation circuit is connected with the base stage of described the second triode Q2 by described the second resistance R 2;
The collector electrode of described the first triode Q1 is connected with the base stage of described the 4th triode Q4 by described the 3rd resistance R 3, and the emitter of this first triode Q1 is connected with the base stage of described the 6th triode Q6;
The emitter of described the 4th triode Q4 is connected with the positive pole of power supply VCC and the emitter of described the 5th triode Q5 respectively, and the collector electrode of the 4th triode Q4 is connected with one end of described motor M 1 and the collector electrode of described the 3rd triode Q3 respectively;
The base stage of described the 5th triode Q5 is connected with the collector electrode of described the second triode Q2 by described the 4th resistance R 4, and the collector electrode of the 5th triode is connected with the other end of described motor M 1 and the collector electrode of described the 6th triode Q6 respectively;
The emitter of described the 6th triode Q6 is connected with emitter and the earth GND of described the 3rd triode Q3 respectively;
The base stage of described the 3rd triode Q3 is connected with the emitter of described the second triode.
Correspondingly, the embodiment of the present invention also provides electronic equipment, comprises above-mentioned circuit for controlling motor.
Implement the embodiment of the present invention, there is following beneficial effect:
Implement embodiments of the invention, utilize the characteristic of transistor cut-off and conducting to realize the rotation of contactless control motor, avoided in prior art short and flimsy problem of original contactor control switch relay life-span, the reliability of increase drive circuit.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit diagram of a kind of circuit for controlling motor of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, be the circuit diagram of a kind of circuit for controlling motor of the embodiment of the present invention, this control circuit comprises:
Level produces circuit, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first triode Q, the second triode Q2, the 3rd triode Q3, the 4th triode Q4, the 5th triode Q5, the 6th triode Q6 and motor M 1.The annexation of above-mentioned components and parts is:
The K1 output that described level produces circuit is connected with the base stage of described the first triode Q1 by described the first resistance R 1, and the K2 output of this pulse generation circuit is connected with the base stage of described the second triode Q2 by described the second resistance R 2; The collector electrode of described the first triode Q1 is connected with the base stage of described the 4th triode Q4 by described the 3rd resistance R 3, and the emitter of this first triode Q1 is connected with the base stage of described the 6th triode Q6; The emitter of described the 4th triode Q4 is connected with the positive pole of power supply VCC and the emitter of described the 5th triode Q5 respectively, and the collector electrode of the 4th triode Q4 is connected with one end of described motor M 1 and the collector electrode of described the 3rd triode Q3 respectively; The base stage of described the 5th triode Q5 is connected with the collector electrode of described the second triode Q2 by described the 4th resistance R 4, and the collector electrode of the 5th triode is connected with the other end of described motor M 1 and the collector electrode of described the 6th triode Q6 respectively; The emitter of described the 6th triode Q6 is connected with emitter and the earth GND of described the 3rd triode Q3 respectively; The base stage of described the 3rd triode Q3 is connected with the emitter of described the second triode.
Further preferred, also comprise the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, wherein, described the first diode D1 is connected across the emitter and collector two ends of described the 5th triode Q5, described the second diode D2 is connected across the emitter and collector two ends of described the 4th triode Q4, described the 3rd diode D3 is connected across the emitter and collector two ends of described the 3rd triode Q3, and described the 4th diode D4 is connected across the emitter and collector two ends of described the 6th triode 6.Wherein, described the first triode Q1 and the 4th triode Q4 are positive-negative-positive triode, and described the second triode Q2, the 3rd triode Q3, the 5th triode Q5 and the 6th triode Q6 are NPN type triode.
The operation principle of described circuit for controlling motor is: VCC is power supply, is this circuit for controlling motor power supply, and GND is node side.When level produces circuit by K1 output and K2 output output low and high level, this level produces circuit and is preferably a comparator, can be other components and parts, and the present invention is not restricted.In the time that described level produces circuit at K1 output output high level and in K2 output end output low level, the first triode Q1 conducting makes the 4th triode Q4 and also saturation conduction of the 6th triode Q6, and the output low level of K2 output makes the second triode Q2, the 3rd triode Q3 and the 5th triode Q5 all for cut-off state, make motor M 1 forward; In the time that level produces circuit by K2 output output high level and K1 output output low level, the second triode Q2 conducting makes the 3rd triode Q3 and also saturation conduction of the 5th triode Q5, and the low level of K1 output is all ended the first triode Q1, the 4th triode Q4 and the 5th triode Q6, motor M 1 is reversed.
By arranging, the value of R1/R2 and R3/R4 can be respectively the first triode Q1, the second triode Q2 and motor M 1 drive circuit is set ideal base drive current, and while meeting drive motors M1, energy saturation conduction, reduces power consumption.
The first diode D1-the 4th diode D4 is fly-wheel diode, motor M 1 is all inductance element, can be regarded as an inductance, effect is in order to ensure in the time that motor M 1 shuts down, the electric current of motor M 1 Inside coil has the path can afterflow (earial drainage), making the induced voltage of motor M 1 be clamped at Vcc+Vd(Vcc is supply voltage, Vd is the tube voltage drop of diode), if there is no this fly-wheel diode, motor M 1 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 it is released, clamper is in Vcc+Vd voltage left and right, ensure the safe and reliable work of driving tube.
Implement embodiments of the invention, utilize the characteristic of transistor cut-off and conducting to realize the rotation of contactless control motor, avoided in prior art short and flimsy problem of original contactor control switch relay life-span, the reliability of increase drive circuit.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and the equivalent variations of doing according to the claims in the present invention, still belong to the scope that invention is contained.
Claims (5)
1. a circuit for controlling motor, is characterized in that, comprising:
Level produces circuit, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first triode Q, the second triode Q2, the 3rd triode Q3, the 4th triode Q4, the 5th triode Q5, the 6th triode Q6 and motor M 1, wherein,
The K1 output that described level produces circuit is connected with the base stage of described the first triode Q1 by described the first resistance R 1, and the K2 output of this pulse generation circuit is connected with the base stage of described the second triode Q2 by described the second resistance R 2;
The collector electrode of described the first triode Q1 is connected with the base stage of described the 4th triode Q4 by described the 3rd resistance R 3, and the emitter of this first triode Q1 is connected with the base stage of described the 6th triode Q6;
The emitter of described the 4th triode Q4 is connected with the positive pole of power supply VCC and the emitter of described the 5th triode Q5 respectively, and the collector electrode of the 4th triode Q4 is connected with one end of described motor M 1 and the collector electrode of described the 3rd triode Q3 respectively;
The base stage of described the 5th triode Q5 is connected with the collector electrode of described the second triode Q2 by described the 4th resistance R 4, and the collector electrode of the 5th triode is connected with the other end of described motor M 1 and the collector electrode of described the 6th triode Q6 respectively;
The emitter of described the 6th triode Q6 is connected with emitter and the earth GND of described the 3rd triode Q3 respectively;
The base stage of described the 3rd triode Q3 is connected with the emitter of described the second triode.
2. control circuit as claimed in claim 1, is characterized in that, described the first triode Q1 and the 4th triode Q4 are positive-negative-positive triode, and described the second triode Q2, the 3rd triode Q3, the 5th triode Q5 and the 6th triode Q6 are NPN type triode.
3. control circuit as claimed in claim 2, it is characterized in that, also comprise the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, wherein, described the first diode D1 is connected across the emitter and collector two ends of described the 5th triode Q5, described the second diode D2 is connected across the emitter and collector two ends of described the 4th triode Q4, described the 3rd diode D3 is connected across the emitter and collector two ends of described the 3rd triode Q3, and described the 4th diode D4 is connected across the emitter and collector two ends of described the 6th triode 6.
4. the control circuit as described in claim 1-3 any one, is characterized in that, described level produces circuit and comprises comparator, for generation of high level and low level.
5. an electronic equipment, is characterized in that, comprises the control circuit as described in claim 1-4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082786.1A CN104052349A (en) | 2013-03-15 | 2013-03-15 | Motor control circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082786.1A CN104052349A (en) | 2013-03-15 | 2013-03-15 | Motor control circuit and electronic device |
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| Publication Number | Publication Date |
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| CN104052349A true CN104052349A (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310082786.1A Pending CN104052349A (en) | 2013-03-15 | 2013-03-15 | Motor control circuit and electronic device |
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| CN (1) | CN104052349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620624A (en) * | 2018-12-14 | 2019-04-16 | 重庆迈登医疗器械有限公司 | Tooth chair control circuit and its tooth chair control system based on MMA7361 |
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| US4544869A (en) * | 1983-10-05 | 1985-10-01 | Unisen, Inc. | Electronic control circuit for bi-directional motion |
| JPS6149684A (en) * | 1984-08-15 | 1986-03-11 | Pioneer Electronic Corp | Drive device for dc motor |
| CN101976993A (en) * | 2010-11-11 | 2011-02-16 | 苏州合欣美电子科技有限公司 | Motor positive/negative rotation circuit for eco-house |
| CN202261140U (en) * | 2011-07-24 | 2012-05-30 | 重庆中科芯亿达电子有限公司 | Built-in temperature protection toy direct current motor drive circuit |
| CN102957361A (en) * | 2011-08-24 | 2013-03-06 | 海洋王照明科技股份有限公司 | Reversible rotation driving circuit of control motor |
| CN102957362A (en) * | 2011-08-24 | 2013-03-06 | 海洋王照明科技股份有限公司 | Reversible rotation driving circuit of control motor |
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2013
- 2013-03-15 CN CN201310082786.1A patent/CN104052349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544869A (en) * | 1983-10-05 | 1985-10-01 | Unisen, Inc. | Electronic control circuit for bi-directional motion |
| JPS6149684A (en) * | 1984-08-15 | 1986-03-11 | Pioneer Electronic Corp | Drive device for dc motor |
| CN101976993A (en) * | 2010-11-11 | 2011-02-16 | 苏州合欣美电子科技有限公司 | Motor positive/negative rotation circuit for eco-house |
| CN202261140U (en) * | 2011-07-24 | 2012-05-30 | 重庆中科芯亿达电子有限公司 | Built-in temperature protection toy direct current motor drive circuit |
| CN102957361A (en) * | 2011-08-24 | 2013-03-06 | 海洋王照明科技股份有限公司 | Reversible rotation driving circuit of control motor |
| CN102957362A (en) * | 2011-08-24 | 2013-03-06 | 海洋王照明科技股份有限公司 | Reversible rotation driving circuit of control motor |
Non-Patent Citations (1)
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| 百度文库: "让直流电动机实现正反转的H桥电路", 《百度文库》 * |
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| CN109620624A (en) * | 2018-12-14 | 2019-04-16 | 重庆迈登医疗器械有限公司 | Tooth chair control circuit and its tooth chair control system based on MMA7361 |
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Application publication date: 20140917 |
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