CN201757764U - Simple general type full wave zero-crossing detection circuit - Google Patents
Simple general type full wave zero-crossing detection circuit Download PDFInfo
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- CN201757764U CN201757764U CN2009202527019U CN200920252701U CN201757764U CN 201757764 U CN201757764 U CN 201757764U CN 2009202527019 U CN2009202527019 U CN 2009202527019U CN 200920252701 U CN200920252701 U CN 200920252701U CN 201757764 U CN201757764 U CN 201757764U
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Abstract
The utility model discloses a simple general type full wave zero-crossing detection circuit including two identical optical couplers A, B; the first pole of the input side of the optical coupler A is connected to the L end of an alternating current power supply, the second pole of the input side is connected to the N end of the alternating current power supply, the first pole of the output side is connected to the interface of a single-chip microcomputer, the second pole of the output side is connected to the ground; the second pole of the input side of the optical coupler B is connected to the L end of the alternating current power supply, the first pole of the input side is connected to the N end of the alternating current power supply, the first pole of the output side is connected to the interface of a single-chip microcomputer, the second pole of the output side is connected to the ground, resistance is connected between the first pole of the input side of the optical coupler A and the second pole of the input side of the optical coupler B and the L end of the alternating current power supply, the first poles of the output side of the optical coupler A and B are connected to a shaping circuit. The utility model solves the technical defects of the zero-crossing detection circuit device in the prior art that is inconvenient in use, complex in circuit, high in cost and being incapable of meeting the application demand of each sine period to generate two zero-crossing pulses.
Description
Technical field
The utility model relates to a kind of zero cross detection circuit, relates in particular to a kind of simple general use type all-wave zero cross detection circuit.
Background technology
Zero cross detection circuit is used to detect the zero crossing of alternating current, in a lot of circuit, all use application, in the prior art, realize that there is following problem in the zero cross detection circuit that alternating current and direct current are isolated: the zero cross detection circuit of existing switching power circuit only produces a zero-crossing pulse in each sinusoidal period, and it can not satisfy the application demand of two zero-crossing pulses of each sinusoidal period needs.Many existing zero cross detection circuit structures are too complicated simultaneously, failure rate and production cost height.
By foregoing description as can be known, existing zero cross detection circuit device product, use is inconvenient, circuit is complicated, production cost is high, can not satisfy the application demand of two zero-crossing pulses of each sinusoidal period needs.
The utility model content
The purpose of this utility model provides a kind of simple general use type all-wave zero cross detection circuit, effectively solve existing zero cross detection circuit device product, use is inconvenient, circuit is complicated, production cost is high, can not satisfy the technological deficiencies such as application demand of two zero-crossing pulses of each sinusoidal period needs.
For achieving the above object, the utility model provides a kind of zero cross detection circuit of switching power circuit, comprising:
A kind of simple general use type all-wave zero cross detection circuit of opening is characterized in that, comprising: two identical photo-coupler A, B;
Input side first utmost point of described photo-coupler A is connected with AC power L end, and input side second utmost point is connected with AC power N end, and outgoing side first utmost point is connected with one-chip machine port, outgoing side second utmost point ground connection;
Input side second utmost point of described photo-coupler B is connected with AC power L end, and outgoing side first utmost point is connected with AC power N end, and outgoing side first utmost point is connected with one-chip machine port, outgoing side second utmost point ground connection.
Wherein, outgoing side first utmost point of described photo-coupler A, B also is connected with shaping circuit.
Be connected to resistance between input side first utmost point of described photo-coupler A and input side second utmost point of described photo-coupler B and the described AC power L end.
Described shaping circuit comprises that an end connects the outgoing side first order of described photo-coupler A, B, and an end connects the resistance of one-chip machine port; One end connects the described outgoing side first order, and an end connects the resistance of 5V direct supply; And one end connect one-chip machine port, the electric capacity of an end ground connection.
Description of drawings
Fig. 1 is a kind of simple general use type of the utility model all-wave zero cross detection circuit schematic diagram;
Embodiment
Fig. 1 is the circuit theory diagrams of a kind of simple general use type of the utility model all-wave zero cross detection circuit embodiment.As shown in Figure 1, a kind of simple general use type all-wave zero cross detection circuit comprises:.
Two identical photo-coupler A, B;
Wherein, input side first utmost point A1 of photo-coupler A is connected with AC power L end, and input side second utmost point A2 is connected with AC power N end, and outgoing side first utmost point A3 is connected with one-chip machine port P, outgoing side second utmost point A4 ground connection;
Input side second utmost point B2 of photo-coupler B is connected with AC power L end, and outgoing side first utmost point B1 is connected with AC power N end, and outgoing side first utmost point B3 is connected with one-chip machine port P, outgoing side second utmost point B4 ground connection.
Simultaneously, outgoing side first utmost point A3 of photo-coupler A, B also is connected with shaping circuit with B3, is connected to resistance R 1 between input side first utmost point A1 of photo-coupler A and input side second utmost point B2 of photo-coupler B and the AC power L end.
Shaping circuit comprises outgoing side first utmost point A3 that is connected described photo-coupler A, B and the resistance between B3 and the one-chip machine port P, one end connects the 5V direct supply, the other end connects photo-coupler A, outgoing side first utmost point A3 of B and the resistance R 2 of B3, one end is connected with one-chip machine port P, the resistance R 3 that one end and outgoing side first utmost point A3 of photo-coupler A, B are connected with B3, and one end be connected the capacitor C 1 of an end ground connection with one-chip machine port P.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (4)
1. a simple general use type all-wave zero cross detection circuit is characterized in that, comprising:
Two identical photo-coupler A, B;
Input side first utmost point of described photo-coupler A is connected with AC power L end, and input side second utmost point is connected with AC power N end, and outgoing side first utmost point is connected with one-chip machine port, outgoing side second utmost point ground connection;
Input side second utmost point of described photo-coupler B is connected with AC power L end, and outgoing side first utmost point is connected with AC power N end, and outgoing side first utmost point is connected with one-chip machine port, outgoing side second utmost point ground connection.
2. simple general use type all-wave zero cross detection circuit according to claim 1 is characterized in that outgoing side first utmost point of described photo-coupler A, B also is connected with shaping circuit.
3. simple general use type all-wave zero cross detection circuit according to claim 1 is characterized in that, is connected to resistance between input side first utmost point of described photo-coupler A, input side second utmost point of photo-coupler B and the described AC power L end.
4. simple general use type all-wave zero cross detection circuit according to claim 2 is characterized in that, described shaping circuit comprises that an end connects the outgoing side first order of described photo-coupler A, B, and an end connects the resistance of one-chip machine port; One end connects the described outgoing side first order, and an end connects the resistance of 5V direct supply; And one end connect one-chip machine port, the electric capacity of an end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202527019U CN201757764U (en) | 2009-11-05 | 2009-11-05 | Simple general type full wave zero-crossing detection circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202527019U CN201757764U (en) | 2009-11-05 | 2009-11-05 | Simple general type full wave zero-crossing detection circuit |
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| Publication Number | Publication Date |
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| CN201757764U true CN201757764U (en) | 2011-03-09 |
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| CN2009202527019U Expired - Fee Related CN201757764U (en) | 2009-11-05 | 2009-11-05 | Simple general type full wave zero-crossing detection circuit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650656A (en) * | 2011-02-28 | 2012-08-29 | 浙江源创电子科技有限公司 | AC zero crossing signal collecting circuit |
| CN103336165A (en) * | 2013-06-25 | 2013-10-02 | 西安电子科技大学 | Detection circuit for overcurrent of alternating current and direct current |
| CN103457600A (en) * | 2012-05-30 | 2013-12-18 | 海洋王照明科技股份有限公司 | Switching circuit with self-locking and isolating functions and lamp |
| CN103852626A (en) * | 2012-11-30 | 2014-06-11 | 海洋王（东莞）照明科技有限公司 | Direct current circuit detection device |
| CN103852627A (en) * | 2012-11-30 | 2014-06-11 | 海洋王（东莞）照明科技有限公司 | Alternating-current circuit current probing device |
| CN104144001A (en) * | 2014-07-29 | 2014-11-12 | 江苏宏云技术有限公司 | Method for improving reliability of power line carrier signal transmission |
| CN104333364A (en) * | 2014-11-04 | 2015-02-04 | 许蓬 | AC solid state relay and fault detecting method of load circuit of same |
| CN116014730A (en) * | 2023-03-17 | 2023-04-25 | 国网山东省电力公司青州市供电公司 | Flexible load regulation and control device, system and regulation and control method |
-
2009
- 2009-11-05 CN CN2009202527019U patent/CN201757764U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650656A (en) * | 2011-02-28 | 2012-08-29 | 浙江源创电子科技有限公司 | AC zero crossing signal collecting circuit |
| CN103457600A (en) * | 2012-05-30 | 2013-12-18 | 海洋王照明科技股份有限公司 | Switching circuit with self-locking and isolating functions and lamp |
| CN103457600B (en) * | 2012-05-30 | 2016-12-14 | 海洋王照明科技股份有限公司 | There is self-locking and the on-off circuit of isolation features and light fixture |
| CN103852626A (en) * | 2012-11-30 | 2014-06-11 | 海洋王（东莞）照明科技有限公司 | Direct current circuit detection device |
| CN103852627A (en) * | 2012-11-30 | 2014-06-11 | 海洋王（东莞）照明科技有限公司 | Alternating-current circuit current probing device |
| CN103336165A (en) * | 2013-06-25 | 2013-10-02 | 西安电子科技大学 | Detection circuit for overcurrent of alternating current and direct current |
| CN104144001A (en) * | 2014-07-29 | 2014-11-12 | 江苏宏云技术有限公司 | Method for improving reliability of power line carrier signal transmission |
| CN104333364A (en) * | 2014-11-04 | 2015-02-04 | 许蓬 | AC solid state relay and fault detecting method of load circuit of same |
| CN104333364B (en) * | 2014-11-04 | 2017-09-26 | 许蓬 | A kind of fault detection method of ac solid relay and the relay load circuit |
| CN116014730A (en) * | 2023-03-17 | 2023-04-25 | 国网山东省电力公司青州市供电公司 | Flexible load regulation and control device, system and regulation and control method |
| CN116014730B (en) * | 2023-03-17 | 2023-11-24 | 国网山东省电力公司青州市供电公司 | Flexible load regulation and control device, system and regulation and control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: BEIJING GUANGLIAN INTELLIGENT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHINA UNIVERSITY OF PETROLEUM AST CHINA Effective date: 20120803 Free format text: FORMER OWNER: LIN AN ZHONGYUE ELECTRONIC CO., LTD. Effective date: 20120803 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 257061 DONGYING, SHANDONG PROVINCE TO: 102200 CHANGPING, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120803 Address after: 102200, Beijing Changping District science and Technology Park, No. 5, block A, building 611, 4 Patentee after: Beijing Guanglianzhineng Technology Co., Ltd. Address before: 257061 communication engineering department, School of computer and communication engineering, China University of Petroleum, 271 north two road, Shandong, Dongying Co-patentee before: China University of Petroleum (East China) Patentee before: China Petroleum University (East China) |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110309 Termination date: 20141105 |
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| EXPY | Termination of patent right or utility model |