CN203278730U - DC (direct current) motor driving control system - Google Patents
DC (direct current) motor driving control system Download PDFInfo
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- CN203278730U CN203278730U CN 201320207195 CN201320207195U CN203278730U CN 203278730 U CN203278730 U CN 203278730U CN 201320207195 CN201320207195 CN 201320207195 CN 201320207195 U CN201320207195 U CN 201320207195U CN 203278730 U CN203278730 U CN 203278730U
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- pwm signal
- control system
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Abstract
The utility model relates to the technical field of DC (direct current) motors, and especially relates to a DC motor driving control system. In the DC motor driving control system, an output of a control button is connected with a programmable controller; an output of the programmable controller is connected with a PWM signal generator; an output of the PWM signal generator is connected with a photoelectric isolation protection circuit; an output of the photoelectric isolation protection circuit is connected with an H-bridge driving circuit; and an output of a voltage-stabilized power supply circuit is connected with the PWM signal generator and the H-bridge driving circuit. The DC motor driving control system, integrally structurally adopts a single-chip microcomputer to control a triode so that the triode works in a duty radio adjustable switching status, and accurately adjusts the rotating speed of the motor; since the circuit works in a saturation cut-off mode of the triode, the efficiency is very high; the H-bridge driving circuit guarantees simple realization of the control of the rotating speed and the direction; and the electronic switch is fast and has excellent stability.
Description
Technical field
The utility model relates to a kind of driving control system, relates in particular to a kind of direct current machine driving control system.
Background technology
Direct current machine is because having good speed adjusting performance, the occasion that much needs speed governing as: there is extensive application in the fields such as Digit Control Machine Tool, experimental facilities, robot, electric automobile.Particularly modern energy is deficient, and as automobile power, this has just proposed requirement to speed governing and the drive unit of direct current machine to electric automobile with direct current machine.Need direct current machine to have the performances such as good startup, braking, counter-rotating, acceleration, deceleration, and these performances must rely on driving control device to realize.Therefore to dc motor speed drive system, driving control device has critical role.In prior art, the system of selection one of driver module is to adopt resistor network or digital regulation resistance to adjust the dividing potential drop of motor, thereby reaches the purpose of speed governing.The main problem of this method is that the resistance of general motor is very little, but electric current is very large; Dividing potential drop not only can lower efficiency, and realizes very difficult.Method two is to adopt relay that opening or closing of motor controlled, and this method is comparatively simple to people's circuit, but the response time of relay is slow, mechanical structure is fragile, the life-span is shorter, reliability is not high.
Summary of the invention
The technical problems to be solved in the utility model is: available technology adopting resistor network or digital regulation resistance are adjusted the dividing potential drop of motor, thereby reach the purpose of speed governing, dividing potential drop not only can lower efficiency, and realize very difficult, adopt relay that opening or closing of motor controlled, this method is comparatively simple to people's circuit, but the response time of relay is slow, mechanical structure is fragile, the life-span is shorter, reliability is not high, and a kind of direct current machine driving control system is provided.
in order to overcome the defective that exists in background technology, the technical scheme that its technical problem that solves the utility model adopts is: this direct current machine driving control system, comprise Programmable Logic Controller, the pwm signal generator, voltage-stabilized power supply circuit, control button, H bridge drive circuit, photoelectricity isolation protective circuit and direct current machine, the output of control button connects Programmable Logic Controller, the output of Programmable Logic Controller connects the pwm signal generator, the output of pwm signal generator connects the photoelectricity isolation protective circuit, the output of photoelectricity isolation protective circuit connects H bridge drive circuit, the output of voltage-stabilized power supply circuit connects pwm signal generator and H bridge drive circuit.
The beneficial effects of the utility model are: this direct current machine driving control system overall structure adopts the Single-chip Controlling triode to make it to be operated in the adjustable on off state of duty ratio, the accurate adjustment motor speed, sort circuit is due under the saturated cut-off mode that is operated in pipe, efficient is very high, H bridge drive circuit has guaranteed to realize simply the control of rotating speed and direction, the speed of electronic switch is very fast, and stability is also splendid.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model; comprise Programmable Logic Controller, pwm signal generator, voltage-stabilized power supply circuit, control button, H bridge drive circuit, photoelectricity isolation protective circuit and direct current machine; the output of control button connects the output connection pwm signal generator of Programmable Logic Controller, Programmable Logic Controller, the output of pwm signal generator connects the photoelectricity isolation protective circuit; the output of photoelectricity isolation protective circuit connects H bridge drive circuit, and the output of voltage-stabilized power supply circuit connects pwm signal generator and H bridge drive circuit.The chip simple cheap of H bridge drive circuit, result of use is good, has reduced input cost.Pwm signal generator signal voltage is 5V; the voltage of H bridge drive circuit is 12V; voltage is mated in order to make both; adopt the photoelectricity isolation protective circuit between pwm signal generator and H bridge drive circuit; realized that namely voltage matches keeps apart the drive part of control section and motor again, effectively prevented from disturbing and having protected circuit.
The design and fabrication of the utility model to direct current machine driving control device H bridge drive circuit; adopt discrete component to build H bridge drive circuit; PWM speed-regulating signal generator is provided by single-chip microcomputer; adopt the photoelectricity isolation protective circuit between signal and H bridge drive circuit, the driving running of direct current machine is controlled and is realized by Programmable Logic Controller.
This direct current machine driving control system overall structure adopts the Single-chip Controlling triode to make it to be operated in the adjustable on off state of duty ratio, the accurate adjustment motor speed, sort circuit is due under the saturated cut-off mode that is operated in pipe, efficient is very high, H bridge drive circuit has guaranteed to realize simply the control of rotating speed and direction, the speed of electronic switch is very fast, and stability is also splendid.
Claims (1)
1. direct current machine driving control system; comprise Programmable Logic Controller, pwm signal generator, voltage-stabilized power supply circuit, control button, H bridge drive circuit, photoelectricity isolation protective circuit and direct current machine; it is characterized in that: the output of described control button connects the output connection pwm signal generator of Programmable Logic Controller, Programmable Logic Controller, the output of pwm signal generator connects the photoelectricity isolation protective circuit; the output of photoelectricity isolation protective circuit connects H bridge drive circuit, and the output of voltage-stabilized power supply circuit connects pwm signal generator and H bridge drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207195 CN203278730U (en) | 2013-04-23 | 2013-04-23 | DC (direct current) motor driving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207195 CN203278730U (en) | 2013-04-23 | 2013-04-23 | DC (direct current) motor driving control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278730U true CN203278730U (en) | 2013-11-06 |
Family
ID=49509053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320207195 Expired - Fee Related CN203278730U (en) | 2013-04-23 | 2013-04-23 | DC (direct current) motor driving control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278730U (en) |
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2013
- 2013-04-23 CN CN 201320207195 patent/CN203278730U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |