CN206321708U - A kind of three-phase alternating current phase detection - Google Patents
A kind of three-phase alternating current phase detection Download PDFInfo
- Publication number
- CN206321708U CN206321708U CN201621440142.0U CN201621440142U CN206321708U CN 206321708 U CN206321708 U CN 206321708U CN 201621440142 U CN201621440142 U CN 201621440142U CN 206321708 U CN206321708 U CN 206321708U
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- CN
- China
- Prior art keywords
- photoelectrical coupler
- phase
- trigger
- alternating current
- photoelectrical
- Prior art date
- 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
The utility model discloses a kind of three-phase alternating current phase detection, including photoelectrical coupler OC1, photoelectrical coupler OC2, photoelectrical coupler OC3, trigger D1, trigger D2 and triode Q；Photoelectrical coupler OC1, photoelectrical coupler OC2 and photoelectrical coupler OC3 input difference phase-connecting wire A, phase line B and phase line C；Photoelectrical coupler OC1 output end in contact hair device D1 CP ends, photoelectrical coupler OC1 D termination powers VCC；Photoelectrical coupler OC2 output end in contact hair device D2 CP ends；Photoelectrical coupler OC3 output end in contact hair device D1 R ends and trigger D2 R ends；Photoelectrical coupler OC1 Q+ termination triggers D2 D ends, the phase-detection identification of three-phase alternating current is realized using three photoelectrical couplers, two triggers and a triode, a diode, single-chip microcomputer need not be used, circuit structure is simplified, reduces the cost of product.
Description
Technical field
The utility model is related to a kind of three-phase alternating current electric detection means, particularly a kind of three-phase alternating current phase-detection electricity
Road.
Background technology
Publication No. " CN105067884A ", entitled " a kind of three-phase alternating-current supply phase detecting circuit ", it uses three
Photoelectrical coupler and three voltage comparators collection signals, are sent in MCU processors, by MCU processors according to 30 °,
Signal at 150 °, 270 °, 390 ° judges the phase of three-phase alternating current, and this detection circuit structure is complex, equipment cost
It is higher.
The content of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of three-phase alternating current phase-detection simple in construction
System.
The utility model solves the technical scheme that its technical problem used：
A kind of three-phase alternating current phase detection, including photoelectrical coupler OC1, photoelectrical coupler OC2, photoelectrical coupler
OC3, trigger D1, trigger D2 and triode Q；The photoelectrical coupler OC1, photoelectrical coupler OC2 and photoelectrical coupler OC3
Input difference phase-connecting wire A, phase line B and phase line C；The output termination trigger D1 of photoelectrical coupler OC1 CP
End, the D termination powers VCC of the photoelectrical coupler OC1；The output termination trigger D2's of the photoelectrical coupler OC2
CP ends；The output termination trigger D1 of photoelectrical coupler OC3 R ends and trigger D2 R ends；The photoelectric coupling
Device OC1 Q+ terminates the D ends of the trigger D2；The base stage of the triode Q connects the Q+ ends of the trigger D2, and base electrode leads to
Cross LED and meet power supply VCC, grounded emitter.
Resistance R1 is in series between the photoelectrical coupler OC1 and phase-connecting wire A；The photoelectrical coupler OC2 and phase-connecting wire B
Between be in series with resistance R2；Resistance R3 is in series between the photoelectrical coupler OC3 and phase-connecting wire C.
The beneficial effects of the utility model are：The utility model is using three photoelectrical couplers, two triggers and one
Triode, a diode realize the phase-detection identification of three-phase alternating current, it is not necessary to use single-chip microcomputer, simplify circuit knot
Structure, reduces the cost of product.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Reference picture 1, a kind of three-phase alternating current phase detection, including photoelectrical coupler OC1, photoelectrical coupler OC2, light
Electric coupler OC3, trigger D1, trigger D2 and triode Q；Photoelectrical coupler OC2, photoelectrical coupler OC3 signal are
UDK2-O 5VDC, trigger D1, trigger D2 model CD4013.The photoelectrical coupler OC1, photoelectrical coupler OC2 and
Photoelectrical coupler OC3 input（The input of photoelectrical coupler is the positive pole of light emitting diode in photoelectrical coupler, diode
Negative pole ground connection）Phase-connecting wire A, phase line B and phase line C respectively, and it is connected on the incoming line of three-phase resistance R1, resistance
R2 and resistance R3.The output end of the photoelectrical coupler OC1（The output end of photoelectrical coupler is the E poles of phototriode）Meet institute
State trigger D1 CP ends, the D termination powers VCC of the photoelectrical coupler OC1；The output termination of the photoelectrical coupler OC2
The CP ends of the trigger D2；The output termination trigger D1 of photoelectrical coupler OC3 R ends and trigger D2 R
End；The Q+ of the photoelectrical coupler OC1 terminates the D ends of the trigger D2；The base stage of the triode Q meets the trigger D2
Q+ ends, base electrode meets power supply VCC, grounded emitter by LED.
Phase line A, phase line B and phase line C three-phase voltage become pulse signal by photoelectrical coupler, phase line A and phase line B's
Pulse signal is respectively fed in two triggers, and C phase signals are the reset signal of two triggers, if A, B, C wiring are correct,
Trigger D2 Q+ ends output high level, triode Q conductings are lighted in LED, if wiring error, lighted
Diode (LED) is not lighted, and three-phase is realized using three photoelectrical couplers, two triggers and triode, a diode
The phase-detection identification of alternating current, it is not necessary to use single-chip microcomputer, simplify circuit structure, reduce the cost of product.
Claims (4)
1. a kind of three-phase alternating current phase detection, it is characterised in that it include photoelectrical coupler OC1, photoelectrical coupler OC2,
Photoelectrical coupler OC3, trigger D1, trigger D2 and triode Q；The photoelectrical coupler OC1, photoelectrical coupler OC2 and light
Electric coupler OC3 input difference phase-connecting wire A, phase line B and phase line C；The output termination of the photoelectrical coupler OC1 is described to be touched
Send out device D1 CP ends, the D termination powers VCC of the photoelectrical coupler OC1；The output termination of the photoelectrical coupler OC2 is described
Trigger D2 CP ends；The output termination trigger D1 of photoelectrical coupler OC3 R ends and trigger D2 R ends；Institute
The Q+ for stating photoelectrical coupler OC1 terminates the D ends of the trigger D2；The base stage of the triode Q meets the Q+ of the trigger D2
End, base electrode meets power supply VCC, grounded emitter by LED.
2. three-phase alternating current phase detection according to claim 1, it is characterised in that the photoelectrical coupler OC1 with
Resistance R1 is in series between phase-connecting wire A.
3. three-phase alternating current phase detection according to claim 1, it is characterised in that the photoelectrical coupler OC2 with
Resistance R2 is in series between phase-connecting wire B.
4. three-phase alternating current phase detection according to claim 1, it is characterised in that the photoelectrical coupler OC3 with
Resistance R3 is in series between phase-connecting wire C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621440142.0U CN206321708U (en) | 2016-12-27 | 2016-12-27 | A kind of three-phase alternating current phase detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621440142.0U CN206321708U (en) | 2016-12-27 | 2016-12-27 | A kind of three-phase alternating current phase detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206321708U true CN206321708U (en) | 2017-07-11 |
Family
ID=59259068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621440142.0U Expired - Fee Related CN206321708U (en) | 2016-12-27 | 2016-12-27 | A kind of three-phase alternating current phase detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206321708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111770597A (en) * | 2019-04-01 | 2020-10-13 | 无锡物华电子科技有限公司 | Frequency tracking method in frequency modulation and power regulation |
-
2016
- 2016-12-27 CN CN201621440142.0U patent/CN206321708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111770597A (en) * | 2019-04-01 | 2020-10-13 | 无锡物华电子科技有限公司 | Frequency tracking method in frequency modulation and power regulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20211227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |