CN103516270A - Rotation speed control circuit and method for motor - Google Patents
Rotation speed control circuit and method for motor Download PDFInfo
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- CN103516270A CN103516270A CN201210495134.6A CN201210495134A CN103516270A CN 103516270 A CN103516270 A CN 103516270A CN 201210495134 A CN201210495134 A CN 201210495134A CN 103516270 A CN103516270 A CN 103516270A
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Abstract
The invention belongs to the field of control over a motor, and provides a rotation speed control circuit and method for the motor. The rotation speed control circuit comprises a detection circuit used for obtaining the work currents of the motor, a single-chip microcomputer used for controlling the pulse frequency according to a current frequency table and the work currents to output pulse signals to a driving circuit of the motor, and the driving circuit used for controlling the rotation speed of the motor according to the pulse signals. According to the rotation speed control circuit and method for the motor, the detection circuit detects the work currents fed back by a motor end, after the work currents are analyzed and processed by the single-chip microcomputer, the single-chip microcomputer outputs the pulse signals to the driving circuit of the motor by controlling the pulse frequency, real-time control over the rotation speed of the motor is achieved, the utilization rate of the motor is effectively improved, the service life of the motor is prolonged, energy consumption is effectively saved, and meanwhile the noise of the motor is lowered.
Description
Technical field
The invention belongs to Motor Control Field, relate in particular to a kind of motor rotation-speed control circuit and method.
Background technology
At present, motor, in control field or routine work, is widely used.No matter traditional motor is in empty load of motor or normal operation, is all the single rotating speed operation of fixing; Or, all need artificially to adjust the rotating speed of motor.In some industry or control system, need intelligence to regulate motor speed, such as: motor is when the Light Condition, need motor to work under the state that slowly runs, to save energy resource consumption; And motor, when high speed rotating, can have been manufactured a large amount of noises.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of motor rotation-speed control circuit and method, to solve the problem of the rotating speed of Based Intelligent Control motor.
The embodiment of the present invention is achieved in that a kind of motor rotation-speed control circuit, and described motor rotation-speed control circuit is connected with motor, and described motor rotation-speed control circuit comprises:
Be connected with described motor, obtain the testing circuit of the operating current of motor;
Be connected with described testing circuit, according to described operating current control impuls frequency with output pulse signal the single-chip microcomputer to the drive circuit of motor; And
Be connected with described motor with described single-chip microcomputer respectively, according to described pulse signal, control the drive circuit of the rotating speed of motor.
Further, described single-chip microcomputer adopts singlechip chip U1, and the detection pin PB3 of described singlechip chip U1 is connected with testing circuit, and the pulse pin PB 1 of described singlechip chip U1 is connected with described drive circuit respectively with pulse pin PB2.
Further, described testing circuit comprises:
Detect resistance R 1, shunt resistance R2 and filter capacitor C1;
Described shunt resistance R2 is connected between the detection pin PB3 of described singlechip chip U1 and the input VIN of described testing circuit, described detection resistance R 1 is connected between the input VIN and ground of described testing circuit, and described filter capacitor C1 is connected between the input VIN and ground of described testing circuit.
Further, described drive circuit comprises:
Shunt resistance R3, shunt resistance R4, shunt resistance R5, shunt resistance R6, shunt resistance R7, shunt resistance R8, the first switching tube, second switch pipe, positive-negative-positive triode Q3, positive-negative-positive triode Q4, positive-negative-positive triode Q5, positive-negative-positive triode Q6, filter capacitor C2, filter capacitor C3 and power supply VCC;
Shunt resistance R3 is connected between the pulse pin PB1 of described singlechip chip U1 and the control end of described the first switching tube, shunt resistance R4 is connected between the pulse pin PB2 of described singlechip chip U1 and the control end of described second switch pipe, the cold end of the cold end of described the first switching tube and described second switch pipe is ground connection respectively, described shunt resistance R5 is connected between the hot end of described the first switching tube and the base stage of described positive-negative-positive triode Q3, described shunt resistance R6 is connected between the hot end of described second switch pipe and the base stage of described positive-negative-positive triode Q4, the emitter of the emitter of described positive-negative-positive triode Q3 and described positive-negative-positive triode Q4 meets respectively power supply VCC, described filter capacitor C2, described filter capacitor C3 and motor are connected between the collector electrode of described positive-negative-positive triode Q3 and the collector electrode of described positive-negative-positive triode Q4, the collector electrode of described positive-negative-positive triode Q3 connects the emitter of described positive-negative-positive triode Q5, the collector electrode of described positive-negative-positive triode Q4 connects the emitter of described positive-negative-positive triode Q6, described shunt resistance R7 is connected between the base stage of described positive-negative-positive triode Q5 and the hot end of described second switch pipe, described shunt resistance R8 is connected between the base stage of described positive-negative-positive triode Q6 and the hot end of described the first switching tube, the collector electrode of the collector electrode of described positive-negative-positive triode Q5 and described positive-negative-positive triode Q6 meets respectively the input VIN of described testing circuit.
Further, described the first switching tube adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube, the current collection of described NPN type triode Q1 is the hot end of the first switching tube very, the transmitting of described NPN type triode Q1 is the cold end of the first switching tube very, or
Described the first switching tube adopts N-type metal-oxide-semiconductor Q7, and the grid of described N-type metal-oxide-semiconductor Q7 is the control end of the first switching tube, and the drain electrode of described N-type metal-oxide-semiconductor Q7 is the hot end of the first switching tube, and the source electrode of described N-type metal-oxide-semiconductor Q7 is the cold end of the first switching tube.
Further, described second switch pipe adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe, the current collection of described NPN type triode Q2 is the hot end of second switch pipe very, the transmitting of described NPN type triode Q2 is the cold end of second switch pipe very, or
Described second switch pipe adopts N-type metal-oxide-semiconductor Q8, and the grid of described N-type metal-oxide-semiconductor Q8 is the control end of second switch pipe, and the drain electrode of described N-type metal-oxide-semiconductor Q8 is the hot end of second switch pipe, and the source electrode of described N-type metal-oxide-semiconductor Q8 is the cold end of second switch pipe.
Another object of the present invention is to provide a kind of motor speed control method, it is characterized in that, described method comprises:
Testing circuit obtains the operating current of motor;
Single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal the drive circuit to motor;
Described drive circuit is controlled the rotating speed of motor according to described pulse signal.
Further, described single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal to before the step of the drive circuit of motor, further comprising the steps of:
Single-chip microcomputer is set up power frequency table storage, and described power frequency table comprises the mapping relations of described operating current and described pulse frequency.
The invention provides a kind of motor rotation-speed control circuit and method, described circuit obtains the operating current of motor by testing circuit, single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal the drive circuit to motor, described drive circuit is controlled the rotating speed of motor according to described pulse signal; The present invention detects the operating current of the motor of feedback by described testing circuit, by control impuls frequency output pulse signal after operating current described in single-chip microcomputer analyzing and processing, to motor-drive circuit, realized motor speed is controlled in real time; Thereby the present invention provides a kind of solution route of new control motor speed for control system, and the consumption of effectively having saved the energy, has reduced noise of motor effectively.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, 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 skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the composition structure chart of the motor rotation-speed control circuit that provides of the embodiment of the present invention;
Fig. 2 is the circuit diagram of the motor rotation-speed control circuit that provides of the embodiment of the present invention;
Fig. 3 is the realization flow figure of the motor speed control method that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
For technical solutions according to the invention are described, below by specific embodiment, describe.
Fig. 1 shows the composition structure of the motor rotation-speed control circuit that the embodiment of the present invention provides, and for convenience of description, only shows the part relevant to the embodiment of the present invention.
The present embodiment provides a kind of motor rotation-speed control circuit, and described motor rotation-speed control circuit is connected with motor, and described motor rotation-speed control circuit comprises:
Be connected with described motor, obtain the testing circuit 1 of the operating current of motor;
Be connected with described testing circuit 1, according to described operating current control impuls frequency with output pulse signal the single-chip microcomputer 2 to the drive circuit 3 of motor; And
Be connected with described motor with described single-chip microcomputer 2 respectively, according to described pulse signal, control the drive circuit 3 of the rotating speed of motor.
Fig. 2 shows the circuit of the motor rotation-speed control circuit that the embodiment of the present invention provides, and for convenience of description, only shows the part relevant to the embodiment of the present invention.
Preferably, described single-chip microcomputer 2 adopts singlechip chip U1, and the detection pin PB3 of described singlechip chip U1 is connected with testing circuit 1, and the pulse pin PB1 of described singlechip chip U1 is connected with described drive circuit 3 respectively with pulse pin PB2.
Preferably, described testing circuit 1 comprises:
Detect resistance R 1, shunt resistance R2 and filter capacitor C1;
Described shunt resistance R2 is connected between the detection pin PB3 of described singlechip chip U1 and the input VIN of described testing circuit 1, described detection resistance R 1 is connected between the input VIN and ground of described testing circuit 1, and described filter capacitor C1 is connected between the input VIN and ground of described testing circuit 1.
Preferably, described drive circuit 3 comprises:
Shunt resistance R3, shunt resistance R4, shunt resistance R5, shunt resistance R6, shunt resistance R7, shunt resistance R8, the first switching tube 31, second switch pipe 32, positive-negative-positive triode Q3, positive-negative-positive triode Q4, positive-negative-positive triode Q5, positive-negative-positive triode Q6, filter capacitor C2, filter capacitor C3 and power supply VCC;
Shunt resistance R3 is connected between the pulse pin PB1 of described singlechip chip U1 and the base stage of described the first switching tube 31, shunt resistance R4 is connected between the pulse pin PB2 of described singlechip chip U1 and the base stage of described second switch pipe 32, the emitter of the emitter of described the first switching tube 31 and described second switch pipe 32 is ground connection respectively, described shunt resistance R5 is connected between the collector electrode of described the first switching tube 31 and the base stage of described positive-negative-positive triode Q3, described shunt resistance R6 is connected between the collector electrode of described second switch pipe 32 and the base stage of described positive-negative-positive triode Q4, the emitter of the emitter of described positive-negative-positive triode Q3 and described positive-negative-positive triode Q4 meets respectively power supply VCC, described filter capacitor C2, described filter capacitor C3 and motor are connected between the collector electrode of described positive-negative-positive triode Q3 and the collector electrode of described positive-negative-positive triode Q4, the collector electrode of described positive-negative-positive triode Q3 connects the emitter of described positive-negative-positive triode Q5, the collector electrode of described positive-negative-positive triode Q4 connects the emitter of described positive-negative-positive triode Q6, described shunt resistance R7 is connected between the base stage of described positive-negative-positive triode Q5 and the collector electrode of described second switch pipe 32, described shunt resistance R8 is connected between the base stage of described positive-negative-positive triode Q6 and the collector electrode of described the first switching tube 31, the collector electrode of the collector electrode of described positive-negative-positive triode Q5 and described positive-negative-positive triode Q6 meets respectively the input VIN of described testing circuit 1.
Further, described the first switching tube 31 adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube 31, the current collection of described NPN type triode Q1 is the hot end of the first switching tube 31 very, the transmitting of described NPN type triode Q1 is the cold end of the first switching tube 31 very, or
Described the first switching tube 31 adopts N-type metal-oxide-semiconductor Q7, the grid of described N-type metal-oxide-semiconductor Q7 is the control end of the first switching tube 31, the drain electrode of described N-type metal-oxide-semiconductor Q7 is the hot end of the first switching tube 31, and the source electrode of described N-type metal-oxide-semiconductor Q7 is the cold end of the first switching tube 31.
Further, described second switch pipe 32 adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe 32, the current collection of described NPN type triode Q2 is the hot end of second switch pipe 32 very, the transmitting of described NPN type triode Q2 is the cold end of second switch pipe 32 very, or
Described second switch pipe 32 adopts N-type metal-oxide-semiconductor Q8, the grid of described N-type metal-oxide-semiconductor Q8 is the control end of second switch pipe 32, the drain electrode of described N-type metal-oxide-semiconductor Q8 is the hot end of second switch pipe 32, and the source electrode of described N-type metal-oxide-semiconductor Q8 is the cold end of second switch pipe 32.
It is example that the singlechip chip U1 of take below adopts singlechip chip ATTINY13, described the first switching tube 31 to adopt NPN type triode Q1 and described second switch pipe 32 employing NPN type triode Q2, and the operation principle of motor rotation-speed control circuit is described:
Detection resistance R 1 in testing circuit 1 and filter capacitor C1 carry out low-pass filtering to the current signal of the input VIN input of testing circuit 1, the DC component of the electric current of the input VIN of testing circuit 1 is reacted on detect resistance R 1 with the form of voltage, due to detect resistance R 1 and shunt resistance R2 is connected in series and the detection pin PB3 and ground of described singlechip chip ATTINY13 between, according to the magnitude of voltage of the detection pin PB3 input of singlechip chip ATTINY13, singlechip chip ATTINY13 can calculate the current value (being the operating current of motor) that detects resistance R 1, thereby, singlechip chip ATTINY13 is according to described current value, find corresponding pulse frequency with transmitted signal to drive circuit 3, singlechip chip ATTINY13 is when sending to drive circuit 3 by pulse pin PB1 and pulse pin PB2, the pulse signal of the pulse signal of described pulse pin PB1 top and described pulse pin PB2 top is reverse, for example: when the pulse signal of described pulse pin PB1 top is " 1 ", the pulse signal of described pulse pin PB2 top is " 0 ".
In order conveniently to understand the operation principle of drive circuit 3, take below singlechip chip ATTINY13 pulse pin PB1 output pulse signal for the pulse signal that " 1 " and pulse pin PB2 export as " 0 ", be example:
After the pulse pin PB1 series connection shunt resistance R3 of singlechip chip ATTINY13, connect the base stage of NPN type triode Q1, grounded emitter due to NPN type triode Q1, NPN type triode Q1 conducting, thereby, the collector potential of NPN type triode Q1 becomes electronegative potential, after the collector electrode series connection shunt resistance R5 of NPN type triode Q1, connect the base stage of positive-negative-positive triode Q3, the emitter of positive-negative-positive triode Q3 meets power supply VCC, positive-negative-positive triode Q3 conducting, after the collector electrode series connection shunt resistance R8 of NPN type triode Q1, meet positive-negative-positive triode Q6, positive-negative-positive triode Q6 conducting; After the pulse pin PB2 series connection shunt resistance R4 of singlechip chip ATTINY13, connect the base stage of NPN type triode Q2, grounded emitter due to NPN type triode Q2, NPN type triode Q2 cut-off, thereby, the collector potential of NPN type triode Q2 becomes high potential, after the collector electrode series connection shunt resistance R6 of NPN type triode Q2, connect the base stage of positive-negative-positive triode Q4, the emitter of positive-negative-positive triode Q4 meets power supply VCC, positive-negative-positive triode Q4 cut-off, after the collector electrode series connection shunt resistance R7 of NPN type triode Q2, meet positive-negative-positive triode Q5, positive-negative-positive triode Q5 cut-off; Between motor connection and the collector electrode of positive-negative-positive triode Q3 and the emitter of positive-negative-positive triode Q6, the direct current of motor flows to the emitter of positive-negative-positive triode Q6 from the collector electrode of positive-negative-positive triode Q3, export the input VIN of described testing circuit by the collector electrode of positive-negative-positive triode Q6 to.
In like manner, when the pulse signal of the pulse pin PB1 output of singlechip chip ATTINY13 be that pulse signal that " 0 " and pulse pin PB2 export is while being " 1 ", NPN type triode Q1 cut-off, NPN type triode Q2 conducting, positive-negative-positive triode Q3 cut-off, positive-negative-positive triode Q4 conducting, positive-negative-positive triode Q6 cut-off, positive-negative-positive triode Q5 conducting; The operating current of motor is by the input VIN of the collector electrode flow detection circuit 1 of positive-negative-positive triode Q5.
In the present embodiment, along with the load that resistance increases or motor connects of the barrier of the rotary head contact of motor increases, the operating current of motor also increases, and is reflected in the electric current detecting in resistance R 1 and also increases.
The present embodiment provides a kind of motor rotation-speed control circuit, by the electric current of the detection resistance R 1 in testing circuit 1, described electric current is the operating current of motor, singlechip chip U1 obtains detection resistance R 1 after series connection and the voltage at shunt resistance R2 two ends, thereby calculate the electric current that detects resistance R 1, and according to the electric current of described detection resistance R 1, control impuls frequency output pulse signal is to drive circuit, drive circuit is controlled the rotating speed of motor according to described pulse signal; Thereby, realized according to the operating current of the motor of motor feedback and having changed, in real time by Single-chip Controlling pulse frequency with output pulse signal the drive circuit to motor, adjust the rotating speed of machine operation, effectively improved the utilance of motor, extend the working life of motor, effectively saved energy consumption, and reduced noise of motor simultaneously.
Fig. 3 shows the realization flow of the motor speed control method that the embodiment of the present invention provides, and details are as follows for its process:
Step S101, testing circuit obtains the operating current of motor.
In the work of motor bringing onto load or when unloaded, or the rotary head of motor is while touching barrier, and the operating current of motor all corresponding variation can occur; Testing circuit can detect described operating current.
While detecting by testing circuit, can adopt current of electric detection chip to carry out operating current detection, or the operating current of the motor of direct-detection motor internal, or by external testing circuit, detect the operating current etc. of motor.
Step S102, single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal the drive circuit to motor.
Preferably, described single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal to before the step of the drive circuit of motor, further comprising the steps of:
Single-chip microcomputer is set up power frequency table storage, and described power frequency table comprises the mapping relations of described operating current and described pulse frequency.
Test in advance under different loads, the optimal motor speed of motor, thus the optimum pulse frequency that finds single-chip microcomputer to export meanwhile, detects operating current according to step 101; According to described pulse frequency and operating current, set up mapping relations, and in the storage medium of single-chip microcomputer, set up power frequency table storage, described power frequency table comprises the mapping relations of described operating current and described pulse frequency.
When empty load of motor, testing circuit can test out the threshold range of an operating current under varying environment, and single-chip microcomputer is set up the operating current of described threshold range and the mapping relations of pulse frequency, and described pulse frequency is minimum pulse frequency; Under described minimum pulse frequency, motor is also with minimum rotational speed.Similarly, can set up a plurality of speed stages, pulse frequency under described no-load condition is minimum speed gear, in unequally loaded situation, test out the threshold range of the operating current under varying environment, and set up the operating current of described threshold range and the mapping relations of pulse frequency, and set up speed stage.
Step S103, described drive circuit is controlled the rotating speed of motor according to described pulse signal.
Described motor can be stepping motor, and along with the pulse frequency of described drive circuit increases, the rotating speed of motor is also faster.
The present embodiment provides a kind of motor speed control method, the method is obtained the operating current of motor by testing circuit, single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal the drive circuit to motor, described drive circuit is controlled the rotating speed of motor according to described pulse signal; Realized the curent change according to motor feedback, pass through in real time Single-chip Controlling pulse frequency output pulse signal to the drive circuit of motor, thereby realized the rotating speed of adjusting machine operation, effectively improved the utilance of motor, extended the working life of motor, effectively save energy consumption, and reduced noise of motor simultaneously.
The embodiment of the present invention provides a kind of motor rotation-speed control circuit and method, described circuit obtains the operating current of motor by testing circuit, single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal the drive circuit to motor, described drive circuit is controlled the rotating speed of motor according to described pulse signal; The present invention detects the operating current of motor side feedback by testing circuit, after single-chip microcomputer analyzing and processing, by control impuls frequency with output pulse signal the drive circuit to motor, realization is controlled in real time to motor speed, effectively improved the utilance of motor, extend the working life of motor, effectively saved energy consumption, and reduced noise of motor simultaneously.
Those of ordinary skills it is also understood that, the all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be in being stored in a computer read/write memory medium, described storage medium, comprises ROM/RAM, disk, CD etc.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make without departing from the inventive concept of the premise some alternative or obvious modification that are equal to; and performance or purposes identical, all should be considered as belonging to the present invention by the definite scope of patent protection of submitted to claims.
Claims (8)
1. a motor rotation-speed control circuit, described motor rotation-speed control circuit is connected with motor, it is characterized in that, and described motor rotation-speed control circuit comprises:
Be connected with described motor, obtain the testing circuit of the operating current of motor;
Be connected with described testing circuit, according to described operating current control impuls frequency with output pulse signal the single-chip microcomputer to the drive circuit of motor; And
Be connected with described motor with described single-chip microcomputer respectively, according to described pulse signal, control the drive circuit of the rotating speed of motor.
2. circuit as claimed in claim 1, it is characterized in that, described single-chip microcomputer adopts singlechip chip U1, and the detection pin PB3 of described singlechip chip U1 is connected with testing circuit, and the pulse pin PB1 of described singlechip chip U1 is connected with described drive circuit respectively with pulse pin PB2.
3. circuit as claimed in claim 2, is characterized in that, described testing circuit comprises:
Detect resistance R 1, shunt resistance R2 and filter capacitor C1;
Described shunt resistance R2 is connected between the detection pin PB3 of described singlechip chip U1 and the input VIN of described testing circuit, described detection resistance R 1 is connected between the input VIN and ground of described testing circuit, and described filter capacitor C1 is connected between the input VIN and ground of described testing circuit.
4. circuit as claimed in claim 3, is characterized in that, described drive circuit comprises:
Shunt resistance R3, shunt resistance R4, shunt resistance R5, shunt resistance R6, shunt resistance R7, shunt resistance R8, the first switching tube, second switch pipe, positive-negative-positive triode Q3, positive-negative-positive triode Q4, positive-negative-positive triode Q5, positive-negative-positive triode Q6, filter capacitor C2, filter capacitor C3 and power supply VCC;
Shunt resistance R3 is connected between the pulse pin PB1 of described singlechip chip U1 and the control end of described the first switching tube, shunt resistance R4 is connected between the pulse pin PB2 of described singlechip chip U1 and the control end of described second switch pipe, the cold end of the cold end of described the first switching tube and described second switch pipe is ground connection respectively, described shunt resistance R5 is connected between the hot end of described the first switching tube and the base stage of described positive-negative-positive triode Q3, described shunt resistance R6 is connected between the hot end of described second switch pipe and the base stage of described positive-negative-positive triode Q4, the emitter of the emitter of described positive-negative-positive triode Q3 and described positive-negative-positive triode Q4 meets respectively power supply VCC, described filter capacitor C2, described filter capacitor C3 and motor are connected between the collector electrode of described positive-negative-positive triode Q3 and the collector electrode of described positive-negative-positive triode Q4, the collector electrode of described positive-negative-positive triode Q3 connects the emitter of described positive-negative-positive triode Q5, the collector electrode of described positive-negative-positive triode Q4 connects the emitter of described positive-negative-positive triode Q6, described shunt resistance R7 is connected between the base stage of described positive-negative-positive triode Q5 and the hot end of described second switch pipe, described shunt resistance R8 is connected between the base stage of described positive-negative-positive triode Q6 and the hot end of described the first switching tube, the collector electrode of the collector electrode of described positive-negative-positive triode Q5 and described positive-negative-positive triode Q6 meets respectively the input VIN of described testing circuit.
5. circuit as claimed in claim 4, it is characterized in that, described the first switching tube adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube, the current collection of described NPN type triode Q1 is the hot end of the first switching tube very, the transmitting of described NPN type triode Q1 is the cold end of the first switching tube very, or
Described the first switching tube adopts N-type metal-oxide-semiconductor Q7, and the grid of described N-type metal-oxide-semiconductor Q7 is the control end of the first switching tube, and the drain electrode of described N-type metal-oxide-semiconductor Q7 is the hot end of the first switching tube, and the source electrode of described N-type metal-oxide-semiconductor Q7 is the cold end of the first switching tube.
6. circuit as claimed in claim 4, it is characterized in that, described second switch pipe adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe, the current collection of described NPN type triode Q2 is the hot end of second switch pipe very, the transmitting of described NPN type triode Q2 is the cold end of second switch pipe very, or
Described second switch pipe adopts N-type metal-oxide-semiconductor Q8, and the grid of described N-type metal-oxide-semiconductor Q8 is the control end of second switch pipe, and the drain electrode of described N-type metal-oxide-semiconductor Q8 is the hot end of second switch pipe, and the source electrode of described N-type metal-oxide-semiconductor Q8 is the cold end of second switch pipe.
7. a motor speed control method, is characterized in that, described method comprises:
Testing circuit obtains the operating current of motor;
Single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal the drive circuit to motor;
Described drive circuit is controlled the rotating speed of motor according to described pulse signal.
8. method as claimed in claim 7, is characterized in that, described single-chip microcomputer according to power frequency table and described operating current control impuls frequency with output pulse signal to before the step of the drive circuit of motor, further comprising the steps of:
Single-chip microcomputer is set up power frequency table storage, and described power frequency table comprises the mapping relations of described operating current and described pulse frequency.
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| CN105471362A (en) * | 2015-11-27 | 2016-04-06 | 深圳市瑞凌实业股份有限公司 | Motor speed control circuit, motor speed control method and motor |
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| CN110500712A (en) * | 2019-08-29 | 2019-11-26 | 海信（山东）空调有限公司 | A kind of control circuit, humidifier and air-conditioning |
| CN111987947A (en) * | 2020-07-13 | 2020-11-24 | 深圳市兆威机电股份有限公司 | Stepping motor, starting control method and device thereof, and computer readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615192A (en) * | 1979-07-18 | 1981-02-13 | Mitsubishi Electric Corp | Input pulse frequency controller for stepping motor |
| CN1134065A (en) * | 1995-03-10 | 1996-10-23 | 村田机械株式会社 | Control method of stepper-motor |
| CN2497485Y (en) * | 2001-07-02 | 2002-06-26 | 虹光精密工业股份有限公司 | Step-by-step motor driving device with dynamic torque control |
| CN102431836A (en) * | 2010-09-09 | 2012-05-02 | 欧瑞康纺织有限及两合公司 | Method for operating a textile machine for creating cross-wound spools and textile machine for creating cross-wound spools |
-
2012
- 2012-11-28 CN CN201210495134.6A patent/CN103516270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615192A (en) * | 1979-07-18 | 1981-02-13 | Mitsubishi Electric Corp | Input pulse frequency controller for stepping motor |
| CN1134065A (en) * | 1995-03-10 | 1996-10-23 | 村田机械株式会社 | Control method of stepper-motor |
| CN2497485Y (en) * | 2001-07-02 | 2002-06-26 | 虹光精密工业股份有限公司 | Step-by-step motor driving device with dynamic torque control |
| CN102431836A (en) * | 2010-09-09 | 2012-05-02 | 欧瑞康纺织有限及两合公司 | Method for operating a textile machine for creating cross-wound spools and textile machine for creating cross-wound spools |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612090A (en) * | 2015-10-19 | 2017-05-03 | 广东美的生活电器制造有限公司 | Food processor and motor rotation speed control device and method for food processor |
| CN106612090B (en) * | 2015-10-19 | 2023-10-27 | 广东美的生活电器制造有限公司 | Food processor and motor rotating speed control device and method for food processor |
| CN105471362A (en) * | 2015-11-27 | 2016-04-06 | 深圳市瑞凌实业股份有限公司 | Motor speed control circuit, motor speed control method and motor |
| CN105471362B (en) * | 2015-11-27 | 2018-06-26 | 深圳市瑞凌实业股份有限公司 | Motor rotation-speed control circuit and motor |
| CN108233826A (en) * | 2017-12-29 | 2018-06-29 | 宁波拓邦智能控制有限公司 | The self-adaptation control method and device of a kind of food refuse disposer |
| CN110500712A (en) * | 2019-08-29 | 2019-11-26 | 海信（山东）空调有限公司 | A kind of control circuit, humidifier and air-conditioning |
| CN111987947A (en) * | 2020-07-13 | 2020-11-24 | 深圳市兆威机电股份有限公司 | Stepping motor, starting control method and device thereof, and computer readable storage medium |
| CN111987947B (en) * | 2020-07-13 | 2022-06-10 | 深圳市兆威机电股份有限公司 | Stepping motor, starting control method and device thereof, and computer readable storage medium |
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