CN201732141U - Diode OS detector - Google Patents
Diode OS detector Download PDFInfo
- Publication number
- CN201732141U CN201732141U CN 201020178728 CN201020178728U CN201732141U CN 201732141 U CN201732141 U CN 201732141U CN 201020178728 CN201020178728 CN 201020178728 CN 201020178728 U CN201020178728 U CN 201020178728U CN 201732141 U CN201732141 U CN 201732141U
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- CN
- China
- Prior art keywords
- diode
- probe
- transformer
- diodes
- light emitting
- 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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- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model relates to a diode OS detector, which comprises a transformer. The innovation point is that the end parts of the anode and cathode of the output end of the transformer are respectively connected with an anode probe and a cathode probe, a resistance and a testing diode group are connected in serial between the anode probe and the cathode probe of the output end of the transformer, the testing diode group comprises two diodes the current conduction directions of which are opposite, and the two diodes are connected in parallel. In the utility model, the anode probe and the cathode probe are connected with a diode to be detected, if the two diodes do not respectively lighten, the diode to be tested is in an open state, if one of the diode lightens, the diode is normal, and if the two diodes respectively lighten, the diode to be texted is in a short-out state, and the detection is convenient and fast.
Description
Technical field
The utility model relates to a kind of diode OS detector, particularly a kind of diode OS detector simple in structure, easy to detect.
Background technology
In the production technology of diode, need test open circuit, the short circuit of diode.Traditional method is that it is serially connected in the loop of a band light emitting diode, lighting and extinguish open circuit, the short-circuit condition of judging this test diode according to light emitting diode, it exists shortcoming to be: at first need to determine the diode PN utmost point to be tested, could test very inconvenient according to the lighting and extinguish and judge of light emitting diode.
The utility model content
The technical problems to be solved in the utility model provides a kind of diode OS detector simple in structure, easy to detect.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of diode OS detector, comprise transformer, its innovative point is: the output positive and negative charge end of described transformer is connected with anodal probe and negative pole probe respectively, be serially connected with resistance and test diode group between the output head anode of transformer and anodal probe, described test diode group is made of the opposite light emitting diode parallel connection that is provided with of two current lead-through directions.
Advantage of the present utility model is: the both positive and negative polarity probe is connected with diode to be detected, if two light emitting diodes all do not work, then the diode of this test is an open-circuit condition, if one of them lights then normal, if all bright then diode of test of two light emitting diodes is a short-circuit condition, convenient test is quick.
Description of drawings
Accompanying drawing is the structure principle chart of the utility model diode OS detector.
Embodiment
As shown in drawings, comprise transformer T, anodal probe a, negative pole probe b, resistance R, light emitting diode VD1, light emitting diode VD2.
The input termination 220V alternating current of above-mentioned transformer T, the both positive and negative polarity end of output terminal is connected with anodal probe a, negative pole probe b respectively, between the output head anode of transformer T and anodal probe a, be serially connected with resistance R and test diode group, this test diode group is made of the light emitting diode VD1 of forward conduction and the light emitting diode VD2 parallel connection of reverse-conducting, wherein, light emitting diode VD1 is the gallium arsenide phosphide diode that glows, and light emitting diode VD2 is the gallium phosphide diode of green light.
During use, positive and negative electrode probe a, b are connected with diode to be detected, if two light emitting diode VD1, VD2 all do not work, then the diode of this test is an open-circuit condition, if one of them lights then normal, if all bright then diode of test of two light emitting diode VD1, VD2 is a short-circuit condition, convenient test is quick.
Claims (1)
1. diode OS detector, comprise transformer, it is characterized in that: the output positive and negative charge end of described transformer is connected with anodal probe and negative pole probe respectively, be serially connected with resistance and test diode group between the output head anode of transformer and anodal probe, described test diode group is made of the opposite light emitting diode parallel connection that is provided with of two current lead-through directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020178728 CN201732141U (en) | 2010-05-05 | 2010-05-05 | Diode OS detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020178728 CN201732141U (en) | 2010-05-05 | 2010-05-05 | Diode OS detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732141U true CN201732141U (en) | 2011-02-02 |
Family
ID=43523300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020178728 Expired - Fee Related CN201732141U (en) | 2010-05-05 | 2010-05-05 | Diode OS detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393498A (en) * | 2011-12-13 | 2012-03-28 | 重庆平伟实业股份有限公司 | Testing apparatus for preventing reverse phenomenon of diode |
-
2010
- 2010-05-05 CN CN 201020178728 patent/CN201732141U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393498A (en) * | 2011-12-13 | 2012-03-28 | 重庆平伟实业股份有限公司 | Testing apparatus for preventing reverse phenomenon of diode |
| CN102393498B (en) * | 2011-12-13 | 2013-10-23 | 重庆平伟实业股份有限公司 | Testing apparatus for preventing reverse phenomenon of diode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20130505 |