CN203688676U - Discriminating circuit for photoelectric coupler - Google Patents
Discriminating circuit for photoelectric coupler Download PDFInfo
- Publication number
- CN203688676U CN203688676U CN201320606868.7U CN201320606868U CN203688676U CN 203688676 U CN203688676 U CN 203688676U CN 201320606868 U CN201320606868 U CN 201320606868U CN 203688676 U CN203688676 U CN 203688676U
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- pin jack
- power supply
- supply unit
- battery power
- test pin
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Abstract
The utility model relates to a discriminating circuit for a photoelectric c coupler. The discriminating circuit includes a battery power supply unit. In one path, the anode of the battery power supply unit is connected with a testing pin jack (a) through a red flashing light emitting diode VD1. In the other path, the anode of the battery power supply unit is connected with a testing pin jack (c) through a resistor and a green light emitting diode VD2 in sequence. A testing pin jack (b) and a testing pin jack (d) are connected with the cathode of the battery power supply unit. The testing pin jack is formed in a manner that a 2# pin is closely wound with a plurality of turns of a bare copper, and a welding lead having a width of greater than 3cm is left at the tail of the pin; and the welding lead is sleeved by an insulating tube. The battery power supply unit employs a 4F20-6V type layer-built dry battery. The structure of the discriminating circuit is reasonable. The discriminating circuit is capable of rapidly detecting photoelectric couplers with different models and pin arrangements while requiring no power switch. Besides, the discriminating circuit can be automatically powered off after detection, thereby being energy-saving and environment-friendly.
Description
Technical field
The utility model relates to field tests, particularly a kind of discriminator circuit of simple and fast testing photoelectronic coupling mechanism function quality.
Background technology
Photoelectrical coupler is as circuit isolating device, plays signal isolation, coupled transfer effect is widely used in the each field of the commercial production such as household electrical appliance, frequency converter.When if the electronic equipment of having applied photoelectrical coupler above-mentioned breaks down, tester is in failure diagnostic process, usually need to judge the quality of photoelectrical coupler, common method is to utilize two multimeter tests, a multimeter is measured photoelectrical coupler input end with R*1, another multimeter is measured photoelectric coupler output end with R*100, in the time of input end conducting, the pointer of output terminal multimeter has swing, judge that photoelectrical coupler is normal, this test mode is inaccurate, and easily erroneous judgement, affects testing efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of simple and easy and test fast the discriminator circuit of photoelectrical coupler function quality.
The utility model adopts following technical scheme: comprise battery power supply unit G, the anodal road of battery power supply unit G is connected with test pin jack a through red flashing diode VD1, another road is connected with test pin jack c through resistor R, green LED VD2 successively, and test pin jack b is connected with battery power supply unit G negative pole with test pin jack d; Described test pin jack is by being closely wound around some circle bare copper wires on No. two pins, and reserves at its afterbody the welding lead that length is greater than 3cm, after on welding lead, cover has insulation tube, makes; Described battery power supply unit adopts 4F20-6V type layer build dry cell.
Further, described test pin jack a and test pin jack c spacing are no more than 1cm, and described bare copper wire adopts the bare copper wire of 0.4mm～0.6mm.
Further, resistor R adopts the RTX-1/8W type carbon film resistor of 1K Ω.
Positive technique effect of the present utility model: input, output pin are distinguished after polarity, while correctly inserting in four test supervisor jacks, directly according to light emitting diode VD1, VD2 flashing situation, judged the quality of photoelectrical coupler function, directly perceived rapidly.Four test pin jacks transposition flexibly in the utility model simultaneously, detects with the photoelectrical coupler that adapts to different model and pin arrangements.Do not establish power switch, pull out tested photoelectrical coupler after detection, power supply is cut off immediately automatically, energy saving.
Brief description of the drawings
Accompanying drawing 1 is the circuit theory diagrams in the utility model.
Embodiment
As shown in Figure 1, the utility model comprises battery power supply unit G, the anodal road of battery power supply unit G is connected with test pin jack a through red flashing diode VD1, another road is connected with test pin jack c through resistor R, green LED VD2 successively, and test pin jack b is connected with battery power supply unit G negative pole with test pin jack d; Pin jack is that bare copper wire can adopt the bare copper wire of 0.4mm～0.6mm, and reserves at its afterbody the welding lead that length is greater than 3cm, after on welding lead, cover has insulation tube, makes by being closely wound around some circle bare copper wires on No. two pins; Battery power supply unit G adopts 4F20-6V type layer build dry cell.Test pin jack a and test pin jack c spacing are no more than 1cm, facilitate flexible transposition between test pin jack, detect with the photoelectrical coupler that adapts to different model and pin arrangements.Resistor R adopts the RTX-1/8W type carbon film resistor of 1K Ω.
When actual test, first distinguish input, the output pin of tested photoelectrical coupler and distinguish polarity, that is: the anode of tested photoelectrical coupler is inserted to test pin hole a, the negative electrode of tested photoelectrical coupler inserts test pin hole b, the collector of tested photoelectrical coupler inserts test pin hole c, when the emitter of tested photoelectrical coupler inserts in the d of test pin hole, if red flashing diode VD1, green LED VD2 synchronous flashing are luminous, show that tested photoelectrical coupler function is intact.If not flashing of red flashing diode VD1, illustrates that photoelectrical coupler internal illumination pipe opens a way; If red flashing diode VD1 flashing, but green LED VD2 does not work or capable of constant light emitting, illustrates that photoelectrical coupler inside is not that luminotron inefficacy is exactly that photistor has been opened a way or punch through damage.
Because the utility model is not established power switch, after detection, pull out tested photoelectrical coupler, power supply is cut off immediately automatically, energy saving.
Claims (3)
1. photoelectrical coupler discriminator circuit, it is characterized in that comprising: battery power supply unit (G), the anodal road of battery power supply unit (G) is connected with test pin jack a through red flashing diode (VD1), resistor (R) is passed through on another road successively, green LED (VD2) is connected with test pin jack c, and test pin jack b is connected with battery power supply unit (G) negative pole with test pin jack d; Described test pin jack is by being closely wound around some circle bare copper wires on No. two pins, and reserves at its afterbody the welding lead that length is greater than 3cm, after on welding lead, cover has insulation tube, makes; Described battery power supply unit (G) adopts 4F20-6V type layer build dry cell.
2. photoelectrical coupler discriminator circuit according to claim 1, it is characterized in that described test pin jack a and test pin jack c spacing are no more than 1cm, and described bare copper wire adopts the bare copper wire of 0.4mm～0.6mm.
3. photoelectrical coupler discriminator circuit according to claim 1, is characterized in that described resistor (R) adopts the RTX-1/8W type carbon film resistor of 1K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606868.7U CN203688676U (en) | 2013-09-29 | 2013-09-29 | Discriminating circuit for photoelectric coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606868.7U CN203688676U (en) | 2013-09-29 | 2013-09-29 | Discriminating circuit for photoelectric coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688676U true CN203688676U (en) | 2014-07-02 |
Family
ID=51010561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320606868.7U Expired - Fee Related CN203688676U (en) | 2013-09-29 | 2013-09-29 | Discriminating circuit for photoelectric coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107301A (en) * | 2018-02-28 | 2018-06-01 | 广西玉柴机器股份有限公司 | Optocoupler test device |
-
2013
- 2013-09-29 CN CN201320606868.7U patent/CN203688676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107301A (en) * | 2018-02-28 | 2018-06-01 | 广西玉柴机器股份有限公司 | Optocoupler test device |
| CN108107301B (en) * | 2018-02-28 | 2023-09-19 | 广西玉柴机器股份有限公司 | Optocoupler testing device |
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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: 20140702 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |