CN203535184U - Universal tester for characteristics of diodes and triodes - Google Patents
Universal tester for characteristics of diodes and triodes Download PDFInfo
- Publication number
- CN203535184U CN203535184U CN201320705623.XU CN201320705623U CN203535184U CN 203535184 U CN203535184 U CN 203535184U CN 201320705623 U CN201320705623 U CN 201320705623U CN 203535184 U CN203535184 U CN 203535184U
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- pin
- test
- time base
- 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
Images
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model relates to a universal tester for the characteristics of the diodes and the triodes. The universal tester for the characteristics of the diodes and the triodes is characterized by comprising a 12 V DC power supply, an astable multivibrator oscillation circuit, a test circuit and a display circuit. The astable multivibrator oscillation circuit is composed of a time-base circuit IC1, a resistor R1, a resistor R2 and a capacitor C1, and the type of the time-base circuit is NE555. The test and display circuits are composed of a resistor R3, an NPN type triode VT1, a resistor R4, a light-emitting diode LED1, a light-emitting diode LED2, a resistor R5, a resistor R6 and test holes. By the test, analysis and comparison of various making schemes and by using the time-base circuit and a small number of general elements to form the astable multivibrator oscillation circuit, the universal tester for the characteristics of the diodes and the triodes of the utility model has the advantages of being simple and rapid to use and being able to test the characteristics of the diodes and triodes dynamically by being compared with the test methods of using a general universal meter, etc.
Description
Technical field
The utility model belongs to electronic components test technical field, is about a kind of diode dynatron performance general purpose tester.
Background technology
In maintenance electronic product or electronic test, sometimes to understand the technical parameter of diode triode, although it is a lot of to detect, screen the method for diode triode performance, as: by the key property of common multimeter test diode or triode, but fast detecting and the performance test results more accurately method are actually rare, and the instrument of professional measuring diode triode is all difficult to bear for general electronic working personnel or electrophile.In order to meet the General Requirements of test diode triode technical parameter, through multiple production program test, analysis and comparison, diode dynatron performance general purpose tester described in the utility model uses time base circuit and a small amount of common components and parts to form stable multi-oscillation circuit, it than the method for testings such as common multimeter have use simple, quick, characteristic that can dynamic test diode or triode.
The circuit that below describes diode dynatron performance general purpose tester described in the utility model in detail related correlation technique content in implementation process.
Utility model content
Goal of the invention and beneficial effect: in maintenance electronic product or electronic test, sometimes to understand the technical parameter of diode triode, although it is a lot of to detect, screen the method for diode triode performance, as: by the key property of common multimeter test diode or triode, but fast detecting and the performance test results more accurately method are actually rare, and the instrument of professional measuring diode triode is all difficult to bear for general electronic working personnel or electrophile.In order to meet the General Requirements of test diode triode technical parameter, diode dynatron performance general purpose tester described in the utility model uses time base circuit and a small amount of common components and parts to form stable multi-oscillation circuit, it than the method for testings such as common multimeter have use simple, quick, characteristic that can dynamic test diode or triode.
Circuit working principle: diode dynatron performance general purpose tester can test out positive-negative-positive or NPN type triode, whether well can judge dynatron performance, convenient test is simple and practical.Time base circuit and resistance R 1, resistance R 2, capacitor C 1 etc. form stable multi-oscillation circuit, its oscillation frequency is f=1.44/ (R1+2R2) C1, the corresponding utmost point of triode to be measured is inserted in corresponding e, b, c instrument connection, if survey diode, use test hole e and instrument connection c.If tested triode is positive-negative-positive, and characteristic is good, and it can only be when time base circuit be exported square wave low level, for positive-negative-positive triode provides conduction path, i.e. conducting when square wave low level, with it the LED 2 of serial connection electroluminescence; And when square wave is high level, the cut-off of positive-negative-positive triode, LED 1 and LED 2 all can be not luminous.
If tested, be NPN type triode, its conducting situation is just in time contrary with positive-negative-positive triode conducting situation, if when characteristic is good, LED 1 is lighted luminous, LED 2 does not work.Therefore,, by the luminous situation of LED 1 or LED 2, can judge is NPN type triode, or the quality of positive-negative-positive triode and characteristic thereof.To the triode that damages or open circuit, LED 1, LED 2 all can be not luminous; And extremely breakdown for triode c, e, at the high and low level of square wave, can light in turn, just due to the vision delay effect of human eye, seem that the two is all bright.Therefore, in test during triode, the two is all bright or all do not work for LED 1, LED 2, illustrates that triode damages.
When test silicon diode or germanium diode, the same triode of its fine or not method of discrimination, but when inserting pin, a use test hole e and instrument connection c.
Technical characterictic: diode dynatron performance general purpose tester, it comprises 12V direct supply, stable multi-oscillation circuit, test circuit and display circuit, it is characterized in that:
Stable multi-oscillation circuit: it is comprised of time base circuit IC1, resistance R 1, resistance R 2 and capacitor C 1, the model that time base circuit IC1 selects is NE555, the anodal VCC of one termination circuit of the 4th pin of time base circuit IC1 and the 8th pin and resistance R 1, the 7th pin of time base circuit IC1 is connected with the other end of resistance R 1, one end of resistance R 2, the 6th pin of time base circuit IC1 and the 2nd other end of pin connecting resistance R2 and one end of capacitor C 1, the 1st pin of time base circuit IC1 and the other end connection circuit of capacitor C 1 ground GND;
Test and display circuit: it is by resistance R 3, NPN type triode VT1, resistance R 4 and LED 1, LED 2 and resistance R 5 and resistance R 6, instrument connection forms, one end and the instrument connection e of the collector connecting resistance R3 of NPN type triode VT1, the anodal VCC of other end connection circuit of resistance R 3, the base stage of NPN type triode VT1 is by the positive pole of resistance R 4 sending and receiving optical diode LED1, the emitter connection circuit ground GND of NPN type triode VT1, the negative pole of the 3rd pin sending and receiving optical diode LED2 of time base circuit IC1 and one end of resistance R 5, another termination instrument connection b of resistance R 5, the positive pole of the negative pole sending and receiving optical diode LED2 of LED 1 and one end of resistance R 6, another termination instrument connection c of resistance R 6,
The anodal VCC of 12V DC power anode connection circuit, 12V DC power cathode is connected with circuit ground GND.
Accompanying drawing explanation
Accompanying drawing is the embodiment circuit working schematic diagram that the utility model provides a diode dynatron performance general purpose tester.
Embodiment
According to diode dynatron performance general purpose tester circuit working schematic diagram shown in the drawings and accompanying drawing explanation, and according to annexation between components and parts in the each several part circuit described in utility model content, and the components and parts technical parameter described in embodiment requires and circuit production main points are implemented to realize the utility model, below in conjunction with embodiment, correlation technique of the present utility model is further described.
The selection of components and parts and technical parameter
IC1 is time base circuit, and the model of selecting is NE555 or LM555, and packing forms is 8 pin dual inline types; Each pin function: the 1st pin is circuit ground GND; The 2nd pin is trigger end; The 3rd pin is output terminal; The 4th pin is reset terminal; The 5th pin is for controlling voltage; 6 pin are thresholding (threshold value); The 7th pin is discharge end; The 8th pin is positive source VCC;
The resistance of resistance R 1 is 1K Ω; The resistance of resistance R 2 is 100K Ω; The resistance of resistance R 3 and resistance R 4 is 4.7K Ω; The resistance of resistance R 5 is 2K Ω; The resistance of resistance R 6 is 100 Ω;
C1 is electric capacity, and its capacity is 0.1 μ F, and suggestion adopts the polypropylene capactive of stable performance;
NPN type triode VT1 selects the triodes such as 2SC3013, requires enlargement factor β >=120;
Circuit production main points and circuit debugging
Because of the circuit structure of diode dynatron performance general purpose tester fairly simple, as long as the electronic devices and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing is welded to specifications, physical connection line and welding quality are after careful inspection is correct, circuit of the present utility model does not need to carry out any debugging substantially, connects 12V direct supply and can normally work;
The electric capacity of capacitor C 1 has determined the oscillation frequency of stable multi-oscillation circuit, and suggestion adopts the polypropylene capactive of stable performance; Because being not easy to adjust the capacity of capacitor C 1, change the oscillation frequency of stable multi-oscillation circuit, so the resistance of suggestion adjusting resistance R2 changes the oscillation frequency of stable multi-oscillation circuit;
The resistance of resistance R 2 is larger, and the oscillation frequency of stable multi-oscillation circuit is just lower, and according to the recommendation of embodiment, resistance R 2 coordinates with capacitor C 1, the about 30Hz of oscillation frequency of stable multi-oscillation circuit.
Claims (1)
1. a diode dynatron performance general purpose tester, it comprises 12V direct supply, stable multi-oscillation circuit, test circuit and display circuit, it is characterized in that:
Described stable multi-oscillation circuit is comprised of time base circuit IC1, resistance R 1, resistance R 2 and capacitor C 1, the model that time base circuit IC1 selects is NE555, the anodal VCC of one termination circuit of the 4th pin of time base circuit IC1 and the 8th pin and resistance R 1, the 7th pin of time base circuit IC1 is connected with the other end of resistance R 1, one end of resistance R 2, the 6th pin of time base circuit IC1 and the 2nd other end of pin connecting resistance R2 and one end of capacitor C 1, the 1st pin of time base circuit IC1 and the other end connection circuit of capacitor C 1 ground GND;
Described test and display circuit are by resistance R 3, NPN type triode VT1, resistance R 4 and LED 1, LED 2 and resistance R 5 and resistance R 6, instrument connection forms, one end and the instrument connection e of the collector connecting resistance R3 of NPN type triode VT1, the anodal VCC of other end connection circuit of resistance R 3, the base stage of NPN type triode VT1 is by the positive pole of resistance R 4 sending and receiving optical diode LED1, the emitter connection circuit ground GND of NPN type triode VT1, the negative pole of the 3rd pin sending and receiving optical diode LED2 of time base circuit IC1 and one end of resistance R 5, another termination instrument connection b of resistance R 5, the positive pole of the negative pole sending and receiving optical diode LED2 of LED 1 and one end of resistance R 6, another termination instrument connection c of resistance R 6,
The anodal VCC of described 12V DC power anode connection circuit, 12V DC power cathode is connected with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705623.XU CN203535184U (en) | 2013-11-07 | 2013-11-07 | Universal tester for characteristics of diodes and triodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705623.XU CN203535184U (en) | 2013-11-07 | 2013-11-07 | Universal tester for characteristics of diodes and triodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535184U true CN203535184U (en) | 2014-04-09 |
Family
ID=50421378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705623.XU Expired - Fee Related CN203535184U (en) | 2013-11-07 | 2013-11-07 | Universal tester for characteristics of diodes and triodes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558540A (en) * | 2013-11-07 | 2014-02-05 | 周芸 | General tester for characteristics of diode and audion |
-
2013
- 2013-11-07 CN CN201320705623.XU patent/CN203535184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558540A (en) * | 2013-11-07 | 2014-02-05 | 周芸 | General tester for characteristics of diode and audion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203535184U (en) | Universal tester for characteristics of diodes and triodes | |
| CN103558540A (en) | General tester for characteristics of diode and audion | |
| CN110780238A (en) | Multi-core cable detection device | |
| CN203772299U (en) | Thru-beam sensor detection device | |
| CN203396876U (en) | Fast cable calibration instrument | |
| CN202453465U (en) | Common performance detector for light emitting diodes (LED) | |
| CN103399242A (en) | Photoelectric coupler detector | |
| CN202471906U (en) | Rapid tester for performance of light emitting diode | |
| CN203840625U (en) | LED chip self-detection alarm circuit | |
| CN205643589U (en) | Snap judgments coaxial cable BNC radio frequency head fault type's indicator | |
| CN203365595U (en) | Optoelectronic coupler detector | |
| CN204228875U (en) | Path break circuit fast detector | |
| CN203643520U (en) | Optoelectronic coupler fault detector | |
| CN203396830U (en) | Multifunctional test pencil | |
| CN204462351U (en) | A kind of direct supply quality visual inspection device | |
| CN201740835U (en) | Wire testing device | |
| CN203551733U (en) | Light emitting diode detection device | |
| CN204154840U (en) | A kind of cable detector | |
| CN203101601U (en) | Lithium battery capacity simple and fast testing circuit | |
| CN203396874U (en) | Low-capacity capacitor tester | |
| CN205483008U (en) | Correlation sensor detection tool | |
| CN203490311U (en) | Two-stage filter detection circuit | |
| CN104914349A (en) | Nixie tube aging screening and detection device and working method thereof | |
| CN205844474U (en) | A kind of level detection and applying instrument | |
| CN105486965A (en) | Cable detector |
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: 20140409 Termination date: 20141107 |
|
| EXPY | Termination of patent right or utility model |