CN103825511A - DC-motor control system - Google Patents
DC-motor control system Download PDFInfo
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- CN103825511A CN103825511A CN201210466053.3A CN201210466053A CN103825511A CN 103825511 A CN103825511 A CN 103825511A CN 201210466053 A CN201210466053 A CN 201210466053A CN 103825511 A CN103825511 A CN 103825511A
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- unit
- motor
- speed
- control unit
- control
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Abstract
The invention discloses a DC-motor control system which includes a DC motor; a speed detection unit which is connected with the DC motor and used for detecting the rotation speed of the motor; a protection unit which is connected with a driving unit and used for performing overvoltage and overcurrent protection according to voltage and current signals transmitted by the driving unit; an input unit which is used for inputting user operation instructions for start and stop, positive rotation and negative rotation and acceleration and deceleration of the motor; a control unit which is connected with the input unit, the speed detection unit and the protection unit and used for controlling the start and stop, positive rotation and negative rotation and rotation speed of the motor according to the user operation instructions transmitted by the input unit, motor rotation speed signals transmitted by the speed detection unit and protection signals transmitted by the protection unit; the driving unit which is connected with the control unit and used for driving the DC motor according to PWM signals transmitted by the control unit; and a display unit which is connected with the control unit and used for displaying system work state signals transmitted by the control unit. The DC-motor control system is high in control precision and high in load adaptive capability.
Description
Technical field
The present invention relates to a kind of DC motor control system.
Background technology
Along with the application of direct current machine expands gradually, people are for the raising day by day of automation demand, the control system of direct current machine also needs development, not only requires to control start and stop and the rotation direction of direct current machine, and has speed governing and speed stabilizing for the requirement of rotating speed control; DC motor control system of the prior art is due to the rotary speed parameter can not Real-Time Monitoring fluctuating due to load variations and accurately feed back to DC motor control circuit, makes that control precision is low, direct current machine adaptive load ability.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop the DC motor control system that a kind of control precision is high, adaptive load ability is strong.
Technological means of the present invention is as follows:
A kind of DC motor control system, is characterized in that comprising:
Direct current machine;
Connect direct current machine, for detection of the unit that tests the speed of motor speed; The described unit that tests the speed is made up of fluted disc and grooved optoelectronic switch; Described fluted disc is located on motor, coaxially installs with machine shaft; The contactless groove through grooved optoelectronic switch in described fluted disc edge;
Connect driver element, carry out the protected location of over-voltage over-current protection for the voltage and current signal transmitting according to driver element;
For inputting the input unit of motor start and stop, forward reversion and acceleration-deceleration user operational order;
Connect respectively input unit, test the speed unit and protected location, the control unit of guard signal control motor start and stop that the motor speed signal transmitting for the user's operational order transmitting according to input unit, the unit that tests the speed and protected location transmit, forward reversion and rotating speed;
Connection control unit, drives the driver element of direct current machine for the pwm signal that transmits according to control unit;
Connection control unit, the display unit of the working state of system signal transmitting for indicative control unit;
For the power supply to system power supply;
Further, described input unit is keyboard;
Further, described control unit is single-chip microcomputer.
Owing to having adopted technique scheme, a kind of DC motor control system provided by the invention, by adopting the unit that tests the speed being formed by fluted disc and grooved optoelectronic switch, when rotating, is with by direct current machine active toothed disk rotation, in the time that multiple dentalations at fluted disc edge pass through the groove of grooved optoelectronic switch successively, optoelectronic switch is exported a series of pulse signals, the frequency of pulse signal is directly proportional to rotating speed, control unit draws the rotating speed of direct current machine according to the frequency of pulse signal, and then the pwm signal of regulation output, through over-drive unit control DC motor speed, thereby realize real time sample rotary speed parameter and feed back to DC motor control circuit the object that reaches closed-loop control direct current machine, precise control, precision is high.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of DC motor control system of the present invention.
Embodiment
A kind of DC motor control system as shown in Figure 1, is characterized in that comprising:
Direct current machine;
Connect direct current machine, for detection of the unit that tests the speed of motor speed; The described unit that tests the speed is made up of fluted disc and grooved optoelectronic switch; Described fluted disc is located on motor, coaxially installs with machine shaft; The contactless groove through grooved optoelectronic switch in described fluted disc edge;
Connect driver element, carry out the protected location of over-voltage over-current protection for the voltage and current signal transmitting according to driver element;
For inputting the input unit of motor start and stop, forward reversion and acceleration-deceleration user operational order;
Connect respectively input unit, test the speed unit and protected location, the control unit of guard signal control motor start and stop that the motor speed signal transmitting for the user's operational order transmitting according to input unit, the unit that tests the speed and protected location transmit, forward reversion and rotating speed;
Connection control unit, drives the driver element of direct current machine for the pwm signal that transmits according to control unit;
Connection control unit, the display unit of the working state of system signal transmitting for indicative control unit;
For the power supply to system power supply;
Further, described input unit is keyboard;
Further, described control unit is single-chip microcomputer.
A kind of DC motor control system provided by the invention, by adopting the unit that tests the speed being formed by fluted disc and grooved optoelectronic switch, when rotating, is with by direct current machine active toothed disk rotation, in the time that multiple dentalations at fluted disc edge pass through the groove of grooved optoelectronic switch successively, optoelectronic switch is exported a series of pulse signals, the frequency of pulse signal is directly proportional to rotating speed, control unit draws the rotating speed of direct current machine according to the frequency of pulse signal, and then the pwm signal of regulation output, through over-drive unit control DC motor speed, thereby realize real time sample rotary speed parameter and feed back to DC motor control circuit the object that reaches closed-loop control direct current machine, precise control, precision is high.
The rotation of electric machine rotation band active toothed disk, in the time that multiple dentalations at fluted disc edge pass through the groove of grooved optoelectronic switch successively, optoelectronic switch is exported a series of pulse signals, the frequency of pulse signal is directly proportional to rotating speed, single-chip microcomputer draws the rotating speed of direct current machine according to the frequency of pulse signal, and then regulation output (pulse duration duty ratio) pwm signal, through over-drive unit control DC motor speed, thereby realize the object of closed-loop control motor.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a DC motor control system, is characterized in that comprising:
Direct current machine;
Connect direct current machine, for detection of the unit that tests the speed of motor speed; The described unit that tests the speed is made up of fluted disc and grooved optoelectronic switch; Described fluted disc is located on motor, coaxially installs with machine shaft; The contactless groove through grooved optoelectronic switch in described fluted disc edge;
Connect driver element, carry out the protected location of over-voltage over-current protection for the voltage and current signal transmitting according to driver element;
For inputting the input unit of motor start and stop, forward reversion and acceleration-deceleration user operational order;
Connect respectively input unit, test the speed unit and protected location, the control unit of guard signal control motor start and stop that the motor speed signal transmitting for the user's operational order transmitting according to input unit, the unit that tests the speed and protected location transmit, forward reversion and rotating speed;
Connection control unit, drives the driver element of direct current machine for the pwm signal that transmits according to control unit;
Connection control unit, the display unit of the working state of system signal transmitting for indicative control unit;
For the power supply to system power supply.
2. a kind of DC motor control system according to claim 1, is characterized in that described input unit is keyboard.
3. a kind of DC motor control system according to claim 1, is characterized in that described control unit is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210466053.3A CN103825511A (en) | 2012-11-16 | 2012-11-16 | DC-motor control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210466053.3A CN103825511A (en) | 2012-11-16 | 2012-11-16 | DC-motor control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103825511A true CN103825511A (en) | 2014-05-28 |
Family
ID=50760400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210466053.3A Pending CN103825511A (en) | 2012-11-16 | 2012-11-16 | DC-motor control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103825511A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054718A (en) * | 2016-06-28 | 2016-10-26 | 无锡新大力电机有限公司 | Control system based on new energy automobile motor |
| CN108594877A (en) * | 2018-05-28 | 2018-09-28 | 嘉兴端宜科技有限公司 | A kind of direct current coding motor two-way closed loop control module and its fixed-speed control system |
| CN111846029A (en) * | 2020-07-23 | 2020-10-30 | 延锋汽车饰件系统重庆有限公司 | Passenger side safety airbag frame assembly device and assembly process |
-
2012
- 2012-11-16 CN CN201210466053.3A patent/CN103825511A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054718A (en) * | 2016-06-28 | 2016-10-26 | 无锡新大力电机有限公司 | Control system based on new energy automobile motor |
| CN108594877A (en) * | 2018-05-28 | 2018-09-28 | 嘉兴端宜科技有限公司 | A kind of direct current coding motor two-way closed loop control module and its fixed-speed control system |
| CN111846029A (en) * | 2020-07-23 | 2020-10-30 | 延锋汽车饰件系统重庆有限公司 | Passenger side safety airbag frame assembly device and assembly process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140528 |