CN205562731U - Diode breakdown voltage test circuit - Google Patents
Diode breakdown voltage test circuit Download PDFInfo
- Publication number
- CN205562731U CN205562731U CN201620321256.7U CN201620321256U CN205562731U CN 205562731 U CN205562731 U CN 205562731U CN 201620321256 U CN201620321256 U CN 201620321256U CN 205562731 U CN205562731 U CN 205562731U
- Authority
- CN
- China
- Prior art keywords
- diode
- rectifier bridge
- connects
- winding
- port
- 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
Links
Abstract
The utility model discloses a diode breakdown voltage test circuit, including diode D2, transformer W, rectifier bridge T and voltmeter V, the both ends of 220V alternating current are connected respectively at transformer W's winding N1's both ends, and rectifier bridge T's port 1 and rectifier bridge T's port 3 are connected respectively to transformer W's winding N1's both ends, rectifier bridge T's port 2 connecting resistance R1 and electric capacity C2, and await measuring diode D1's negative pole, voltmeter V and triode V1's collecting electrode is connected to resistance R1's the other end. The utility model discloses diode breakdown voltage test circuit only uses essential electronic component to combine voltmeter and ampere meter, has realized that not only the cost of manufacture is low to the reverse breakdown voltage survey of diode, convenient to use, easy operation moreover, and use with the teaching in especially adapted laboratory.
Description
Technical field
This utility model relates to a kind of LED, specifically a kind of diode breakdown voltage test circuit.
Background technology
Diode is a kind of device with two electrodes, only allows electric current to be flow through by single direction, and many uses are the functions applying its rectification.Varactor is then used for the adjustable condenser as electronic type.The major part sense of current that possessed of diode we be normally referred to as rectification function.The most common function of diode is exactly only to allow electric current by single direction by (referred to as forward bias voltage drop), blocks time reverse
(referred to as reverse bias).Therefore, diode can be thought of as the non-return valve of electronic edition.The breakdown reverse voltage of diode is the performance parameter that it is important, and understanding its breakdown reverse voltage can preferably help people to design circuit, prevents the damage of circuit, and the most complex operation of existing tester, structure are complicated, therefore need to be improved.
Utility model content
The purpose of this utility model is to provide a kind of diode breakdown voltage test circuit, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of diode breakdown voltage test circuit，Including diode D2、Transformator W、Rectifier bridge T and voltmeter V，The two ends of the winding N1 of described transformator W connect the two ends of 220V alternating current respectively，The two ends of the winding N1 of transformator W connect the port 1 of rectifier bridge T and the port 3 of rectifier bridge T respectively，The port 2 of rectifier bridge T connects resistance R1 and electric capacity C2，The other end of resistance R1 connects the negative electrode of diode D1 to be measured、Voltmeter V and the colelctor electrode of audion V1，The port 4 of rectifier bridge T connects the other end the ground connection of electric capacity C2，One end of the winding N3 of transformator W connects the anode of diode D2，The negative electrode of diode D2 connects resistance R2 and electric capacity C1，The other end of resistance R2 connects a fixing end and the base stage of audion V1 of potentiometer RP1，The other end of electric capacity C1 connects another fixing end of potentiometer RP1、The sliding end of potentiometer RP1、The emitter stage of audion V1、Ammeter A、The other end of voltmeter V and the other end of the winding N3 of transformator W，The anode of diode D1 to be measured connects the other end of ammeter A.
As further program of the utility model: the turn ratio of winding N1, N2, N3 of described transformator W is 220:500:6.
Compared with prior art, the beneficial effects of the utility model are: this utility model diode breakdown voltage test circuit only uses basic electronic component to combine voltmeter and ammeter, achieve the breakdown reverse voltage to diode to measure, not only cost of manufacture is low, and easy to use, simple to operate, it is especially suitable for laboratory and teaching uses.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of diode breakdown voltage test circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，A kind of diode breakdown voltage test circuit，Including diode D2、Transformator W、Rectifier bridge T and voltmeter V，The two ends of the winding N1 of described transformator W connect the two ends of 220V alternating current respectively，The two ends of the winding N1 of transformator W connect the port 1 of rectifier bridge T and the port 3 of rectifier bridge T respectively，The port 2 of rectifier bridge T connects resistance R1 and electric capacity C2，The other end of resistance R1 connects the negative electrode of diode D1 to be measured、Voltmeter V and the colelctor electrode of audion V1，The port 4 of rectifier bridge T connects the other end the ground connection of electric capacity C2，One end of the winding N3 of transformator W connects the anode of diode D2，The negative electrode of diode D2 connects resistance R2 and electric capacity C1，The other end of resistance R2 connects a fixing end and the base stage of audion V1 of potentiometer RP1，The other end of electric capacity C1 connects another fixing end of potentiometer RP1、The sliding end of potentiometer RP1、The emitter stage of audion V1、Ammeter A、The other end of voltmeter V and the other end of the winding N3 of transformator W，The anode of diode D1 to be measured connects the other end of ammeter A.
The turn ratio of winding N1, N2, N3 of transformator W is 220:500:6.
Operation principle of the present utility model is: 220V line voltage is point two-way output after polyphase transformer W, from the voltage of winding N2 output output HIGH voltage after rectifier bridge T rectification and electric capacity C2 filter, after diode D2 rectification, electric capacity C1 filtering, it is supplied to the base voltage of audion V1 from the voltage of winding N3 output stage.Regulator potentiometer RP1 can control the conducting degree of V1, i.e. control the cathode voltage of diode D1 to be measured, during measurement, diode D1 to be measured is accessed in circuit, the resistance of potentiometer RP1 is turned down, the base potential of V1 declines, the cathode potential of diode D1 rises, when diode D1 does not punctures, ammeter A non-metering, regulation along with potentiometer RP1, D1 two terminal potential rises, voltmeter reading constantly raises, when diode D1 is breakdown, ammeter A has reading, until milliammeter indicates the specified reverse current of measured tube, the magnitude of voltage of at this moment voltmeter instruction is breakdown reverse voltage.
Claims (2)
- null1. a diode breakdown voltage test circuit，Including diode D2、Transformator W、Rectifier bridge T and voltmeter V，It is characterized in that，The two ends of the winding N1 of described transformator W connect the two ends of 220V alternating current respectively，The two ends of the winding N1 of transformator W connect the port 1 of rectifier bridge T and the port 3 of rectifier bridge T respectively，The port 2 of rectifier bridge T connects resistance R1 and electric capacity C2，The other end of resistance R1 connects the negative electrode of diode D1 to be measured、Voltmeter V and the colelctor electrode of audion V1，The port 4 of rectifier bridge T connects the other end the ground connection of electric capacity C2，One end of the winding N3 of transformator W connects the anode of diode D2，The negative electrode of diode D2 connects resistance R2 and electric capacity C1，The other end of resistance R2 connects a fixing end and the base stage of audion V1 of potentiometer RP1，The other end of electric capacity C1 connects another fixing end of potentiometer RP1、The sliding end of potentiometer RP1、The emitter stage of audion V1、Ammeter A、The other end of voltmeter V and the other end of the winding N3 of transformator W，The anode of diode D1 to be measured connects the other end of ammeter A.
- Diode breakdown voltage the most according to claim 1 test circuit, it is characterised in that the turn ratio of winding N1, N2, N3 of described transformator W is 220:500:6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620321256.7U CN205562731U (en) | 2016-04-15 | 2016-04-15 | Diode breakdown voltage test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620321256.7U CN205562731U (en) | 2016-04-15 | 2016-04-15 | Diode breakdown voltage test circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562731U true CN205562731U (en) | 2016-09-07 |
Family
ID=56809168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620321256.7U Expired - Fee Related CN205562731U (en) | 2016-04-15 | 2016-04-15 | Diode breakdown voltage test circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646176A (en) * | 2016-10-19 | 2017-05-10 | 珠海格力电器股份有限公司 | Method and apparatus of screening transistor |
-
2016
- 2016-04-15 CN CN201620321256.7U patent/CN205562731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646176A (en) * | 2016-10-19 | 2017-05-10 | 珠海格力电器股份有限公司 | Method and apparatus of screening transistor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102890243B (en) | A kind of battery electric quantity measuring circuit, measurement apparatus and battery meter | |
| CN205353210U (en) | It is applicable in internal resistance of cell on -line monitoring device of multiple battery type | |
| CN103487767A (en) | Load driving circuit and electronic load | |
| CN203759112U (en) | High-frequency current detection circuit | |
| CN205562731U (en) | Diode breakdown voltage test circuit | |
| CN104330637A (en) | 500KV transformer direct-current resistance and direct-current demagnetization intelligent test instrument and method | |
| CN207380122U (en) | MOSFET hourglass source electrode resistance test circuits | |
| CN204374351U (en) | A kind of Transformer Winding short-circuit detecting circuit | |
| CN207380140U (en) | Power battery insulation resistance detection circuit | |
| CN204241568U (en) | 500KV DC Resistance of Transformer and direct current degaussing tester | |
| CN105974293B (en) | A kind of elimination field-effect tube avalanche test inductance error circuit and its test method | |
| CN203455403U (en) | Battery voltage detection circuit based on Zener diode | |
| CN205656267U (en) | Polarity tester for portable current transformers | |
| CN104502717A (en) | Intelligent battery inner resistance measuring meter | |
| CN204228835U (en) | A kind of phase order of 3-phase AC detecting device | |
| CN203566108U (en) | Output current detection circuit of inverter welder based on alternating current signal | |
| CN106199158A (en) | A kind of electrical network zero-crossing detection system based on frequency stabilization circuit | |
| CN103795129A (en) | Computer universal serial bus (USB) port mobile phone lithium battery constant current charger | |
| CN204495909U (en) | Wide-range high-accuracy electrical resistance collection circuit | |
| CN203871878U (en) | Computer USB port constant-current charger for cellphone lithium battery | |
| CN203798896U (en) | Zero crossing detection circuit | |
| CN203658480U (en) | Voltage-stabilization photoelectric coupler detection circuit | |
| CN204556774U (en) | A kind of electric system cycle measuring instrument | |
| CN203490311U (en) | Two-stage filter detection circuit | |
| CN202748332U (en) | Portable soil humidity testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Yigen Inventor before: Li Jun |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170120 Address after: 528308 Guangdong Province, Foshan city Shunde District Lunjiao nepheline new Xi four northbound No. 2 B block four Patentee after: Foshan City Han Chi Electronics Co. Ltd. Address before: 315700 Ningbo, Xiangshan Province Economic Development Zone, Park Road, No. 98 Patentee before: Xiangshan Al Wouter Intelligent Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20190415 |