CN202772828U - Stepper drive circuit for improving anti-interference ability of optocoupler circuit - Google Patents
Stepper drive circuit for improving anti-interference ability of optocoupler circuit Download PDFInfo
- Publication number
- CN202772828U CN202772828U CN 201220378817 CN201220378817U CN202772828U CN 202772828 U CN202772828 U CN 202772828U CN 201220378817 CN201220378817 CN 201220378817 CN 201220378817 U CN201220378817 U CN 201220378817U CN 202772828 U CN202772828 U CN 202772828U
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- CN
- China
- Prior art keywords
- circuit
- optocoupler
- module
- stepper drive
- photoelectric coupled
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Provided is a stepper drive circuit for improving the anti-interference ability of an optocoupler circuit. The stepper drive circuit comprises an optocoupler circuit, a master control processing module and a power drive module in order. The optocoupler circuit and the power drive module are powered by a power supply module. The stepper drive circuit is characterized in that an input end of the optocoupler circuit is connected in parallel with a capacitor C1 and an output end of the optocoupler circuit is connected in parallel with a capacitor C2, so that the optocoupler circuit becomes an RC filter circuit. When there are no capacitors, due to the high-frequency interference, the circuit generates some spike pulses, which further causes wrong movements of a stepper motor. After the technical scheme of the utility model is adopted, due to the addition of the capacitors C1 and C2 on the basis of the original circuit, the RC filter circuit is formed to filter the high-frequency interference, thereby enhancing the anti-interference ability.
Description
Technical field
The utility model belongs to the stepper drive circuit, is specifically related to a kind of stepper drive circuit that improves the optocoupler anti-jamming circuit.
Background technology
Stepping motor is a kind of controlled servo class motor, require motion accurately, this just requires anti-interference relatively good, this antijamming capability to stepper motor driver will be got well, when some special occasions, good antijamming capability is just extremely important, such as: automatic argon arc welder (during the high-frequency and high-voltage scratch start of argon arc welding, disturbing very large).
Summary of the invention
The utility model is in order to solve the technical problem of mentioning in the background technology, and a kind of simple in structure, stepper drive circuit of improving the optocoupler anti-jamming circuit then is provided.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of stepper drive circuit that improves the optocoupler anti-jamming circuit, comprise successively photoelectric coupled circuit, master control processing module and power driver module, described photoelectric coupled circuit and power driver module are powered by power module, it is characterized in that: the input parallel connection of described photoelectric coupled circuit a capacitor C 1, the output parallel connection of described photoelectric coupled circuit a capacitor C 2 so that photoelectric coupled circuit forms the RC filter circuit.
After adopting above technical scheme: when not having electric capacity, circuit produces some spikes owing to being subjected to High-frequency Interference, cause the stepping motor wrong motion, increase capacitor C 1 and C2 at original circuit, by forming the RC filter circuit, High-frequency Interference is carried out filtering, improve jamproof ability.
Description of drawings
Fig. 1 is circuit module figure of the present utility model;
Fig. 2 is the photoelectric coupled circuit figure of the utility model improvement part;
Fig. 3 is the work wave of stepping motor perfect condition;
Work wave when Fig. 4 is stepping motor employing prior art;
Work wave when Fig. 5 is stepping motor employing the utility model.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of stepper drive circuit that improves the optocoupler anti-jamming circuit, comprise successively photoelectric coupled circuit 1, master control processing module and power driver module, photoelectric coupled circuit 1 and power driver module are powered by power module, the input parallel connection of photoelectric coupled circuit 1 capacitor C 12, the output parallel connection of photoelectric coupled circuit 1 capacitor C 23 so that photoelectric coupled circuit 1 forms the RC filter circuit.
The utility model is with respect to the beneficial effect of prior art: referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, when not having electric capacity, circuit is owing to being subjected to High-frequency Interference, produce some spikes, cause the stepping motor wrong motion, increase capacitor C 12 and C23 at original circuit, by forming the RC filter circuit, High-frequency Interference is carried out filtering, improve jamproof ability.
Claims (1)
1. stepper drive circuit that improves the optocoupler anti-jamming circuit, comprise successively input module, photoelectric coupled circuit (1), master control processing module and power driver module, described photoelectric coupled circuit (1) and power driver module are powered by power module, it is characterized in that: the input parallel connection of described photoelectric coupled circuit (1) a capacitor C 1(2), the output parallel connection of described photoelectric coupled circuit (1) a capacitor C 2(3), so that photoelectric coupled circuit (1) forms the RC filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378817 CN202772828U (en) | 2012-08-01 | 2012-08-01 | Stepper drive circuit for improving anti-interference ability of optocoupler circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378817 CN202772828U (en) | 2012-08-01 | 2012-08-01 | Stepper drive circuit for improving anti-interference ability of optocoupler circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772828U true CN202772828U (en) | 2013-03-06 |
Family
ID=47779370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378817 Expired - Fee Related CN202772828U (en) | 2012-08-01 | 2012-08-01 | Stepper drive circuit for improving anti-interference ability of optocoupler circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346754A (en) * | 2013-05-29 | 2013-10-09 | 天津罗斯诺普信息技术有限公司 | Filtering isolator |
-
2012
- 2012-08-01 CN CN 201220378817 patent/CN202772828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346754A (en) * | 2013-05-29 | 2013-10-09 | 天津罗斯诺普信息技术有限公司 | Filtering isolator |
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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: 20130306 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |