CN104065316A - Motor control circuit - Google Patents
Motor control circuit Download PDFInfo
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- CN104065316A CN104065316A CN201310094725.7A CN201310094725A CN104065316A CN 104065316 A CN104065316 A CN 104065316A CN 201310094725 A CN201310094725 A CN 201310094725A CN 104065316 A CN104065316 A CN 104065316A
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- China
- Prior art keywords
- thyristor
- control circuit
- pulse transformer
- triode
- motor
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Abstract
The invention discloses a motor control circuit which comprises the components of: a single-chip microcomputer control circuit U1, a switch tube Q1, a pulse transformer T1, and a thyristor Q2; wherein: the single-chip microcomputer control circuit U1 is used for outputting a pulse train; the switch tube Q1 is connected with the single-chip microcomputer control circuit U1 and the pulse transformer T1 respectively for amplifying a pulse sequence which is output from the single-chip microcomputer control circuit U1 and outputting to the pulse transformer T1; and the pulse transformer T1 is connected with the switch tube Q1 and the thyristor Q2 respectively for transmitting the pulse sequence which is output from the switch tube Q1 to the thyristor Q2; and the thyristor Q2 is connected with the motor for controlling the motor according to the pulse sequence which is transmitted by the pulse transformer T1. Accordingly, the motor control circuit according to an embodiment of the invention realizes motor controlling through the single-chip microcomputer control circuit and has safe and reliable control effect.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of motor control circuit.
Background technology
In daily life and all trades and professions work, often use motor, the driving of motor and control mode are also the emphasis of present industrial research.
Summary of the invention
Technical problem to be solved by this invention is, a kind of motor control circuit is provided, and controls effect safety, reliable.
In order to solve the problems of the technologies described above, the motor control circuit that embodiments of the invention provide, comprising: single chip machine controlling circuit U1, switching tube Q1, pulse transformer T1, thyristor Q2, wherein:
Described single chip machine controlling circuit U1 is for output pulse sequence;
Described switching tube Q1 is connected with described pulse transformer T1 with described single chip machine controlling circuit U1 respectively, for the pulse train of described single chip machine controlling circuit U1 output being amplified and exporting to described pulse transformer T1;
Described pulse transformer T1 is connected with described thyristor Q2 with described switching tube Q1 respectively, for the pulse train of described switching tube Q1 output is sent to described thyristor Q2;
Described thyristor Q2 is connected with described motor, for the pulse train sending according to described pulse transformer T1, described motor is controlled.
In some feasible execution modes,
Described switching tube Q1 is triode, and described pulse transformer T1 is the transformer that primary coil and secondary coil form, and described thyristor Q2 is two-way admittance thyristor;
The base stage of described triode is connected for the terminal of output pulse sequence with described single chip machine controlling circuit U1, and the collector electrode of described triode is connected with one end of the primary coil of described pulse transformer T1, the grounded emitter of described triode;
The other end of the primary coil of described pulse transformer T1 is connected with external dc power, and the two ends of the secondary coil of described pulse transformer T1 are connected with the both positive and negative polarity of described thyristor Q2 respectively;
Described thyristor Q2 and described motor are connected between the AC power into described motor power supplying.
In some feasible execution modes, the base stage of described triode and described single chip machine controlling circuit U1 be for being connected with capacitor C 1 between the terminal of output pulse sequence, between described single-chip microcomputer is for the terminal of output pulse sequence and ground, is connected with resistance R 1.
In some feasible execution modes, between the emitter of described triode and ground, be connected with resistance R 3.
In some feasible execution modes, between the base stage of described triode and ground, be connected with one-way conduction diode D1, the positive pole of described diode D1 is connected to the ground, and the negative pole of described diode D1 is connected with the base stage of described triode.
In some feasible execution modes, between the base stage of described triode and collector electrode, be connected with capacitor C 2, between the collector electrode of described triode and described DC power supply, be connected with resistance R 2.
In some feasible execution modes, between the both positive and negative polarity of described thyristor Q2, be connected with capacitor C 3.
In some feasible execution modes, between the terminal that the secondary coil of described pulse transformer T1 is connected with described thyristor Q2 positive pole and the positive pole of described thyristor Q2, be connected with one-way conduction diode D2, the positive pole of described diode D2 is connected with the secondary coil of described pulse transformer T1, and the negative pole of described diode D1 is connected with the positive pole of described thyristor Q2.
Embodiment of the present invention tool has the following advantages or beneficial effect:
The motor control circuit of the embodiment of the present invention comprises single chip machine controlling circuit U1, switching tube Q1, pulse transformer T1, thyristor Q2, wherein: described single chip machine controlling circuit U1 is for output pulse sequence; Described switching tube Q1 is connected with described pulse transformer T1 with described single chip machine controlling circuit U1 respectively, for the pulse train of described single chip machine controlling circuit U1 output being amplified and exporting to described pulse transformer T1; Described pulse transformer T1 is connected with described thyristor Q2 with described switching tube Q1 respectively, for the pulse train of described switching tube Q1 output is sent to described thyristor Q2; Described thyristor Q2 is connected with described motor, for the pulse train sending according to described pulse transformer T1, described motor is controlled, and hence one can see that, and the embodiment of the present invention realizes the control to motor by single chip machine controlling circuit, controls effect safety, reliable.
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 modular structure composition schematic diagram of an embodiment of motor control circuit of the present invention.
Fig. 2 is the circuit structure composition schematic diagram of an embodiment of motor control circuit of the present invention.
Fig. 3 is the circuit structure composition schematic diagram of another embodiment of motor control circuit 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.
With reference to figure 1, motor control circuit of the present invention can comprise single chip machine controlling circuit U1, switching tube Q1, pulse transformer T1 and thyristor Q2, wherein: described single chip machine controlling circuit U1 is for output pulse sequence; Described switching tube Q1 is connected with described pulse transformer T1 with described single chip machine controlling circuit U1 respectively, for the pulse train of described single chip machine controlling circuit U1 output being amplified and exporting to described pulse transformer T1; Described pulse transformer T1 is connected with described thyristor Q2 with described switching tube Q1 respectively, for the pulse train of described switching tube Q1 output is sent to described thyristor Q2; Described thyristor Q2 is connected with motor MG1, for the pulse train sending according to described pulse transformer T1, described motor MG1 is controlled.
In specific implementation, single-chip microcomputer is microcontroller, is the circuit of 5 volts of Power supplies, and motor can be the motor of AC 220 V, therefore, the embodiment of the present invention provides a kind of control circuit of the high-tension motor of Single-chip Controlling by low-voltage, it controls effect safety, reliable.
In specific implementation, the switching tube Q1 of the embodiment of the present invention can be triode etc. and has the element of switching function.
In specific implementation, the pulse transformer T1 of the embodiment of the present invention can comprise primary coil and secondary coil.
In specific implementation, the thyristor Q2 of the embodiment of the present invention can be one-way conduction thyristor or two-way admittance thyristor.
With further reference to Fig. 2, the circuit structure of one embodiment of motor control circuit of the present invention can comprise single chip machine controlling circuit U1, triode Q1, pulse transformer T1 and thyristor Q2, wherein: described single chip machine controlling circuit U1 is by terminal 16 output pulse sequences, the base stage of described triode Q1 is connected with the terminal 16 of described single chip machine controlling circuit U1, the collector electrode of described triode Q1 is connected with one end of the primary coil of described pulse transformer T1, the grounded emitter of described triode Q1; The other end of the primary coil of described pulse transformer T1 is connected with the DC power supply of outside 12 volts, and the two ends of the secondary coil of described pulse transformer T1 are connected with the both positive and negative polarity of described thyristor Q2 respectively; Described thyristor Q2 and described motor MG1 are associated between 220 volts of AC power into described motor power supplying.
With further reference to Fig. 3, on the basis of example shown in Fig. 2, in some feasible execution modes, can be on the basis of the circuit of Fig. 2, also can comprise one or more in following circuit structure.
1, between the base stage of described triode Q1 and the terminal 16 of described single chip machine controlling circuit U1, be connected with capacitor C 1, between the terminal 16 of described single chip machine controlling circuit U1 and ground, be connected with resistance R 1.Capacitor C 1 and resistance R 1 form filter capacitor, for removing the noise jamming of pulse train of single chip machine controlling circuit U1 output.
2, between the emitter of described triode Q1 and ground, be connected with resistance R 3.Resistance R 3 is the protective resistances as triode Q1.
3, between the base stage of described triode Q1 and ground, be connected with one-way conduction diode D1, the positive pole of described diode D1 is connected to the ground, and the negative pole of described diode D1 is connected with the base stage of described triode Q1.
4, between the base stage of described triode Q1 and collector electrode, be connected with capacitor C 2, between the collector electrode of described triode and described DC power supply, be connected with resistance R 2.The effect of capacitor C 2 and resistance R 2 is similar with the effect of resistance R 1 to capacitor C 1.
5, between the both positive and negative polarity of described thyristor Q2, be connected with capacitor C 3.Between the terminal that the secondary coil of described pulse transformer T1 is connected with described thyristor Q2 positive pole and the positive pole of described thyristor Q2, be connected with one-way conduction diode D2, the positive pole of described diode D2 is connected with the secondary coil of described pulse transformer T1, and the negative pole of described diode D1 is connected with the positive pole of described thyristor Q2.
In specific implementation, the operation principle of the circuit of the embodiment of the present invention is roughly as follows:
By single chip machine controlling circuit output pulse sequence, input to switching tube by input, then through switching tube amplification, pulse transformer isolation output, then trigger bidirectional transistor conducting, finally realize the control to motor.In order to reduce the capacity of pulse transformer, what single chip machine controlling circuit was exported is several continuous narrow pulse sequences.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The amendment done within any spirit at above-mentioned execution mode and principle, be equal to and replace and improvement etc., within all should being included in the protection range of this technical scheme.
Claims (8)
1. a motor control circuit, is characterized in that, comprising: single chip machine controlling circuit U1, switching tube Q1, pulse transformer T1, thyristor Q2, wherein:
Described single chip machine controlling circuit U1 is for output pulse sequence;
Described switching tube Q1 is connected with described pulse transformer T1 with described single chip machine controlling circuit U1 respectively, for the pulse train of described single chip machine controlling circuit U1 output being amplified and exporting to described pulse transformer T1;
Described pulse transformer T1 is connected with described thyristor Q2 with described switching tube Q1 respectively, for the pulse train of described switching tube Q1 output is sent to described thyristor Q2;
Described thyristor Q2 is connected with described motor, for the pulse train sending according to described pulse transformer T1, described motor is controlled.
2. motor control circuit as claimed in claim 1, is characterized in that,
Described switching tube Q1 is triode, and described pulse transformer T1 is the transformer that primary coil and secondary coil form, and described thyristor Q2 is two-way admittance thyristor;
The base stage of described triode is connected for the terminal of output pulse sequence with described single chip machine controlling circuit U1, and the collector electrode of described triode is connected with one end of the primary coil of described pulse transformer T1, the grounded emitter of described triode;
The other end of the primary coil of described pulse transformer T1 is connected with external dc power, and the two ends of the secondary coil of described pulse transformer T1 are connected with the both positive and negative polarity of described thyristor Q2 respectively;
Described thyristor Q2 and described motor are connected between the AC power into described motor power supplying.
3. motor control circuit as claimed in claim 2, it is characterized in that, the base stage of described triode and described single chip machine controlling circuit U1 be for being connected with capacitor C 1 between the terminal of output pulse sequence, between described single-chip microcomputer is for the terminal of output pulse sequence and ground, is connected with resistance R 1.
4. motor control circuit as claimed in claim 3, is characterized in that, is connected with resistance R 3 between the emitter of described triode and ground.
5. motor control circuit as claimed in claim 3, is characterized in that, is connected with one-way conduction diode D1 between the base stage of described triode and ground, and the positive pole of described diode D1 is connected to the ground, and the negative pole of described diode D1 is connected with the base stage of described triode.
6. motor control circuit as claimed in claim 3, is characterized in that, is connected with capacitor C 2 between the base stage of described triode and collector electrode, between the collector electrode of described triode and described DC power supply, is connected with resistance R 2.
7. motor control circuit as claimed in claim 3, is characterized in that, is connected with capacitor C 3 between the both positive and negative polarity of described thyristor Q2.
8. the motor control circuit as described in any one in claim 2-7, it is characterized in that, between the terminal that the secondary coil of described pulse transformer T1 is connected with described thyristor Q2 positive pole and the positive pole of described thyristor Q2, be connected with one-way conduction diode D2, the positive pole of described diode D2 is connected with the secondary coil of described pulse transformer T1, and the negative pole of described diode D1 is connected with the positive pole of described thyristor Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094725.7A CN104065316A (en) | 2013-03-22 | 2013-03-22 | Motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310094725.7A CN104065316A (en) | 2013-03-22 | 2013-03-22 | Motor control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104065316A true CN104065316A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310094725.7A Pending CN104065316A (en) | 2013-03-22 | 2013-03-22 | Motor control circuit |
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| CN (1) | CN104065316A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100223885B1 (en) * | 1995-07-14 | 1999-10-15 | 구본준 | Motor speed control system of using chaos circuit |
| CN201536332U (en) * | 2009-05-20 | 2010-07-28 | 和平电气有限公司 | Improved intelligent motor soft starter |
| CN102185543A (en) * | 2010-07-15 | 2011-09-14 | 上海海洋大学 | Energy-saving soft-start device for high-voltage asynchronous motor |
| CN202009358U (en) * | 2011-04-02 | 2011-10-12 | 无锡市南方电器制造有限公司 | Stick-feeding motor speed regulation and control power supply device for CO2/MAG/MIG arc welding machines |
| CN202103614U (en) * | 2011-01-20 | 2012-01-04 | 杭州华光电气有限公司 | Soft starter with waveform analysis function |
-
2013
- 2013-03-22 CN CN201310094725.7A patent/CN104065316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100223885B1 (en) * | 1995-07-14 | 1999-10-15 | 구본준 | Motor speed control system of using chaos circuit |
| CN201536332U (en) * | 2009-05-20 | 2010-07-28 | 和平电气有限公司 | Improved intelligent motor soft starter |
| CN102185543A (en) * | 2010-07-15 | 2011-09-14 | 上海海洋大学 | Energy-saving soft-start device for high-voltage asynchronous motor |
| CN202103614U (en) * | 2011-01-20 | 2012-01-04 | 杭州华光电气有限公司 | Soft starter with waveform analysis function |
| CN202009358U (en) * | 2011-04-02 | 2011-10-12 | 无锡市南方电器制造有限公司 | Stick-feeding motor speed regulation and control power supply device for CO2/MAG/MIG arc welding machines |
Non-Patent Citations (1)
| Title |
|---|
| 俞光昀、吴一锋: "《PIC系列单片机原理和开发应用技术》", 30 September 2009 * |
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Application publication date: 20140924 |