CN102411104A - Method for detecting completeness of optical coupler - Google Patents
Method for detecting completeness of optical coupler Download PDFInfo
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- CN102411104A CN102411104A CN2011102450150A CN201110245015A CN102411104A CN 102411104 A CN102411104 A CN 102411104A CN 2011102450150 A CN2011102450150 A CN 2011102450150A CN 201110245015 A CN201110245015 A CN 201110245015A CN 102411104 A CN102411104 A CN 102411104A
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- optocoupler
- optical coupler
- input end
- output terminal
- output
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Abstract
The invention provides a method for detecting completeness of an optical coupler. The method comprises the following steps of: A, connecting the input end of the optical coupler, a resistor R1 and a power supply to form a complete circuit, and connecting the output end of the optical coupler, a resistor R2 and the power supply to form a circuit; B, sequentially inputting a few kinds of current of different intensity to the input end of the optical coupler, and inputting pulsating direct-current signals to the output end of the optical coupler; C, measuring corresponding voltage diagrams output by the output end of the optical coupler when a few kinds of current are input to the input end of the optical coupler; and D, judging the completeness of the optical coupler according to the voltage diagrams of the output end. The method has the advantages that: by arranging the optical coupler in a preset circuit for measurement, the method is convenient and fast to operate, meanwhile, the current intensity relationship between the output end and the input end of the optical coupler can be conveniently judged, and the work efficiency of the completeness judgment of the optical coupler is greatly improved.
Description
Technical field
The present invention relates to the actual effect analysis field of electronic product, particularly a kind of quality of optocoupler detects determination methods.
Background technology
In circuit, often use optocoupler, this device is when improper use or other factors cause component failure, and is extremely important to its fine or not measurement, and the measurement of function quality is the prerequisite of failure analysis.
Judge that optocoupler quality method commonly used is to measure with two multimeters; Basic ideas are: electric current is provided for the input end of optocoupler with a multimeter; Make the radiating portion operate as normal of optocoupler, big or small at output simultaneously with the multimeter measuring resistance, judge the quality of optocoupler with this.
The method is tested according to the basic comprising and the principle of optocoupler, can judge the quality of optocoupler basically, but in measurement, can not judge the relation between input of optocoupler two ends and the output, and inconvenient operation, the length that expends time in, and whole efficiency is low.Therefore, quality how to judge optocoupler fast becomes failure analysis field problem demanding prompt solution.
Summary of the invention
Can not judge the relation between input of optocoupler two ends and the output for solving existing optocoupler quality determination methods, and inconvenient operation, the length that expends time in, the problem that whole efficiency is low, the present invention provides following technical scheme:
A kind of detection method of optocoupler quality may further comprise the steps:
A, the input end of optocoupler and resistance R 1 and power supply are connected into complete loops, optocoupler output terminal and resistance R 2 are connected into power supply accomplish the loop;
B, import the electric currents of several kinds of different sizes successively at the input end of optocoupler, at the direct current signal of optocoupler output terminal input pulsation;
When C, the input end of measuring optocoupler are imported several kinds of different electric currents, the voltage graph of corresponding optocoupler output terminal output;
D, judge the quality of optocoupler according to the voltage graph of output terminal.
As a kind of preferred version of the present invention, in the optocoupler place in circuit of said steps A, can also two electric current output pins of optocoupler input end and output terminal be connected together.
The present invention has following advantage: the inventive method is measured through optocoupler being placed preset circuit; Convenient to operation; Can conveniently judge simultaneously the size of current relation of optocoupler output terminal and input end, greatly improve the work efficiency that the optocoupler quality is judged.
Description of drawings
The circuit theory diagrams that Fig. 1 detection method of the present invention is used;
The fluctuating signal synoptic diagram of the output terminal input of Fig. 2 detection method circuit of the present invention;
The another kind of Fig. 3 detection method optocoupler of the present invention inserts the method schematic diagram of test circuit;
The optocoupler output terminal output signal that Fig. 4 detection method of the present invention detects;
Fig. 5 detection method of the present invention detects bad optocoupler output terminal output signal.
Embodiment
Do to set forth in detail in the face of this process implementing example down, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Present embodiment is measured judgement to a collection of sample optocoupler, and the concrete operations step is following:
A, the input end of optocoupler and resistance R 1 and power supply are connected into complete loops, optocoupler output terminal and resistance R 2 are connected into power supply accomplish the loop, accomplishes circuit connection as shown in Figure 1, and optocoupler is linked in the circuit by the mode of Fig. 3;
B, AB end is imported the electric currents of several kinds different sizes successively in the importation of optocoupler, imports the direct current signal of pulsation as shown in Figure 2 at optocoupler output ED end;
When C, the input end of measuring optocoupler are imported several kinds of different electric currents, the voltage graph of corresponding optocoupler output terminal output;
D, judge the quality of optocoupler according to the voltage graph of output terminal.
When the optocoupler of test was the non-defective unit optocoupler, optocoupler output terminal synoptic diagram was as shown in Figure 4, and when the optocoupler of test was the defective products optocoupler, optocoupler output terminal synoptic diagram was as shown in Figure 5, judges the quality of optocoupler according to this.
The above; Be merely one of embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. the detection method of optocoupler quality, it is characterized in that: this method may further comprise the steps:
A, the input end of optocoupler and resistance R 1 and power supply are connected into complete loops, optocoupler output terminal and resistance R 2 are connected into power supply accomplish the loop;
B, import the electric currents of several kinds of different sizes successively at the input end of optocoupler, at the direct current signal of optocoupler output terminal input pulsation;
When C, the input end of measuring optocoupler are imported several kinds of different electric currents, the voltage graph of corresponding optocoupler output terminal output;
D, judge the quality of optocoupler according to the voltage graph of output terminal.
2. the detection method of a kind of optocoupler quality according to claim 1 is characterized in that: in the optocoupler place in circuit of said steps A, can also two electric current output pins of optocoupler input end and output terminal be connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102450150A CN102411104A (en) | 2011-08-25 | 2011-08-25 | Method for detecting completeness of optical coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102450150A CN102411104A (en) | 2011-08-25 | 2011-08-25 | Method for detecting completeness of optical coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102411104A true CN102411104A (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102450150A Pending CN102411104A (en) | 2011-08-25 | 2011-08-25 | Method for detecting completeness of optical coupler |
Country Status (1)
| Country | Link |
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| CN (1) | CN102411104A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759674A (en) * | 2012-07-20 | 2012-10-31 | 航天科工防御技术研究试验中心 | Universal adapter for testing optocouplers |
| CN110174576A (en) * | 2019-06-27 | 2019-08-27 | 湖南联诚轨道装备有限公司 | A kind of Optocoupler detection device |
| CN111239531A (en) * | 2020-03-07 | 2020-06-05 | 上海崟燊新能源科技有限公司 | Quality testing device for optical coupler production |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006102316A2 (en) * | 2005-03-23 | 2006-09-28 | Robertshaw Controls Company | Diagnostic circuit |
| CN101957413A (en) * | 2010-09-21 | 2011-01-26 | 深圳市华力特电气股份有限公司 | Relay protection device detection circuit |
-
2011
- 2011-08-25 CN CN2011102450150A patent/CN102411104A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006102316A2 (en) * | 2005-03-23 | 2006-09-28 | Robertshaw Controls Company | Diagnostic circuit |
| CN101957413A (en) * | 2010-09-21 | 2011-01-26 | 深圳市华力特电气股份有限公司 | Relay protection device detection circuit |
Non-Patent Citations (1)
| Title |
|---|
| 张小菊: "光耦器的识别及检测", 《家庭电子》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759674A (en) * | 2012-07-20 | 2012-10-31 | 航天科工防御技术研究试验中心 | Universal adapter for testing optocouplers |
| CN110174576A (en) * | 2019-06-27 | 2019-08-27 | 湖南联诚轨道装备有限公司 | A kind of Optocoupler detection device |
| CN111239531A (en) * | 2020-03-07 | 2020-06-05 | 上海崟燊新能源科技有限公司 | Quality testing device for optical coupler production |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |