CN204791119U - Anti -interference photoelectric counter circuit - Google Patents
Anti -interference photoelectric counter circuit Download PDFInfo
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- CN204791119U CN204791119U CN201520469379.0U CN201520469379U CN204791119U CN 204791119 U CN204791119 U CN 204791119U CN 201520469379 U CN201520469379 U CN 201520469379U CN 204791119 U CN204791119 U CN 204791119U
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Abstract
The utility model discloses an anti -interference photoelectric counter circuit, including resistance R1, comparator IC1, emitting diode D1, phototriode VT1 and optical coupler IC3, resistance R1's one end connecting resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and power VCC, emitting diode D1's positive pole, emitting diode D1's negative pole connecting resistance R9, resistance R10, phototriode VT1's projecting pole and triode VT2's projecting pole are connected to resistance R1's the other end. The utility model discloses counter circuit has added 4N25 photoelectric isolated chip and decoder chip on the basis of original counting circuit, advance multipolar comparison operation to the count signal simultaneously, carries out effectual optoelectronic isolation to the circuit for output signal is more accurate reliable, and circuit structure is simple simultaneously, convenient to use.
Description
Technical field
The utility model relates to a kind of reminiscences, specifically a kind of anti-interference photoelectric counter circuit.
Background technology
Along with the development of science and technology, when producing in order to save the accurate of manpower and counting, the normal counting adopting digital electronic unit to realize product on production line.At present, the mode that on market, the most photoelectric counter of major part adopts optical-electric module to be directly connected with technology modules, is conducive to although it is so reducing volume, but can be subject to the interference of circuit fluctuation in photoelectricity transmission process, thus affect the accuracy of photoelectric counting.
Utility model content
The purpose of this utility model is the anti-interference photoelectric counter circuit providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of anti-interference photoelectric counter circuit, comprise resistance R1, comparer IC1, light emitting diode D1, phototriode VT1 and photo-coupler IC3, one end contact resistance R2 of described resistance R1, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and power supply VCC, the anode of the other end connecting luminous diode D1 of resistance R1, the negative electrode contact resistance R9 of light emitting diode D1, resistance R10, the emitter of phototriode VT1 and the emitter of triode VT2, the other end of the other end contact resistance R4 of resistance R2, the pin 3 of comparer IC1 and the collector of phototriode VT1, pin 1 ground connection of comparer IC1, the other end of other end contact resistance R9 of resistance R3 and the pin 1 of comparer IC1, the other end of resistance R5 connects the pin 4 of comparer IC1 and the pin 3 of comparer IC1, the other end of resistance R6 connects the pin 1 of photo-coupler IC3, the pin 4 of comparer IC1 connects the pin 2 of photo-coupler IC3, the other end of resistance R7 connects the pin 3 of photo-coupler IC3, the other end of pin 4 contact resistance R10 of photo-coupler IC3 and the other end of resistance R11, the signal input part of the other end sum counter of the collector contact resistance R8 of the base stage triode VT2 of the other end connecting triode VT2 of resistance R11, the signal output part of counter connects the signal input part of code translator, the signal output part of code translator connects display, the model of described comparer IC1 and comparer IC2 is LM311, the model of described photo-coupler IC3 is 4N25.
As preferred version of the present utility model: described counter is CD451B type counter chip.
As preferred version of the present utility model: described code translator is CD4543 type decoder chip.
As preferred version of the present utility model: described display screen is LCD display.
Compared with prior art, the beneficial effects of the utility model are: the utility model counter circuit adds 4N25 photoelectric isolated chip and decoder chip on the basis of original counting circuit, multipole comparison operation is entered to count signal simultaneously, effective Phototube Coupling is carried out to circuit, make output signal more precisely reliable, circuit structure is simple simultaneously, easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of anti-interference photoelectric counter circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of anti-interference photoelectric counter circuit, comprise resistance R1, comparer IC1, light emitting diode D1, phototriode VT1 and photo-coupler IC3, one end contact resistance R2 of described resistance R1, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and power supply VCC, the anode of the other end connecting luminous diode D1 of resistance R1, the negative electrode contact resistance R9 of light emitting diode D1, resistance R10, the emitter of phototriode VT1 and the emitter of triode VT2, the other end of the other end contact resistance R4 of resistance R2, the pin 3 of comparer IC1 and the collector of phototriode VT1, pin 1 ground connection of comparer IC1, the other end of other end contact resistance R9 of resistance R3 and the pin 1 of comparer IC1, the other end of resistance R5 connects the pin 4 of comparer IC1 and the pin 3 of comparer IC1, the other end of resistance R6 connects the pin 1 of photo-coupler IC3, the pin 4 of comparer IC1 connects the pin 2 of photo-coupler IC3, the other end of resistance R7 connects the pin 3 of photo-coupler IC3, the other end of pin 4 contact resistance R10 of photo-coupler IC3 and the other end of resistance R11, the signal input part of the other end sum counter of the collector contact resistance R8 of the base stage triode VT2 of the other end connecting triode VT2 of resistance R11, the signal output part of counter connects the signal input part of code translator, the signal output part of code translator connects display, the model of described comparer IC1 and comparer IC2 is LM311, the model of described photo-coupler IC3 is 4N25.
Counter is CD451B type counter chip.
Code translator is CD4543 type decoder chip.
Display screen is LCD display.
Principle of work of the present utility model is: after circuit ON power supply VCC, light emitting diode D1 sends infrared ray, when phototriode VT1 receive infrarede emitting diode D1 penetrate come infrared light time, VT1 conducting, input end 3 pin of comparer IC1 is low level, 4 pin export high level, be added to inverting input 3 pin of comparer IC2, make 4 pin output low levels, luminotron then in optocoupler 4n25 is lighted, its corresponding inner photosensitive tube conducting, triode VT2 also conducting, VT2 collector output low level.When having object by between infrarede emitting diode D1 and receiving tube VT1, infrared ray is blocked, and VT1 ends, and 4 pin of comparer IC2 export high level, 4N25 ends, VT2 ends, and VT2 collector exports high level, therefore when there being object by VT1, just on VT2 collector, counting pulse signal is exported, this signal delivers to counter, then delivers to code translator and carry out decoded operation, preferably on display circuit, demonstrates corresponding data.
Claims (4)
1. an anti-interference photoelectric counter circuit, comprises resistance R1, comparer IC1, light emitting diode D1, phototriode VT1 and photo-coupler IC3, it is characterized in that, one end contact resistance R2 of described resistance R1, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8 and power supply VCC, the anode of the other end connecting luminous diode D1 of resistance R1, the negative electrode contact resistance R9 of light emitting diode D1, resistance R10, the emitter of phototriode VT1 and the emitter of triode VT2, the other end of the other end contact resistance R4 of resistance R2, the pin 3 of comparer IC1 and the collector of phototriode VT1, pin 1 ground connection of comparer IC1, the other end of other end contact resistance R9 of resistance R3 and the pin 1 of comparer IC1, the other end of resistance R5 connects the pin 4 of comparer IC1 and the pin 3 of comparer IC1, the other end of resistance R6 connects the pin 1 of photo-coupler IC3, the pin 4 of comparer IC1 connects the pin 2 of photo-coupler IC3, the other end of resistance R7 connects the pin 3 of photo-coupler IC3, the other end of pin 4 contact resistance R10 of photo-coupler IC3 and the other end of resistance R11, the signal input part of the other end sum counter of the collector contact resistance R8 of the base stage triode VT2 of the other end connecting triode VT2 of resistance R11, the signal output part of counter connects the signal input part of code translator, the signal output part of code translator connects display, the model of described comparer IC1 and comparer IC2 is LM311, the model of described photo-coupler IC3 is 4N25.
2. the anti-interference photoelectric counter circuit of one according to claim 1, is characterized in that, described counter is CD451B type counter chip.
3. the anti-interference photoelectric counter circuit of one according to claim 1, is characterized in that, described code translator is CD4543 type decoder chip.
4. the anti-interference photoelectric counter circuit of one according to claim 1, is characterized in that, described display screen is LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469379.0U CN204791119U (en) | 2015-07-03 | 2015-07-03 | Anti -interference photoelectric counter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469379.0U CN204791119U (en) | 2015-07-03 | 2015-07-03 | Anti -interference photoelectric counter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204791119U true CN204791119U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520469379.0U Expired - Fee Related CN204791119U (en) | 2015-07-03 | 2015-07-03 | Anti -interference photoelectric counter circuit |
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| CN (1) | CN204791119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017152366A1 (en) * | 2016-03-08 | 2017-09-14 | 马翼 | Speed monitoring system with photoelectric counting for wind power generator |
-
2015
- 2015-07-03 CN CN201520469379.0U patent/CN204791119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017152366A1 (en) * | 2016-03-08 | 2017-09-14 | 马翼 | Speed monitoring system with photoelectric counting for wind power generator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160703 |