CN202916373U - Capacitor performance determination instrument with function of rapid detection - Google Patents
Capacitor performance determination instrument with function of rapid detection Download PDFInfo
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- CN202916373U CN202916373U CN 201220434733 CN201220434733U CN202916373U CN 202916373 U CN202916373 U CN 202916373U CN 201220434733 CN201220434733 CN 201220434733 CN 201220434733 U CN201220434733 U CN 201220434733U CN 202916373 U CN202916373 U CN 202916373U
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Abstract
Disclosed in the utility model is a capacitor performance determination instrument with the function of rapid detection. The instrument is composed of a battery, a first NOT gate, a second NOT gate, a third NOT gate, a fourth NOT gate, a first resistor, a second resistor, a third resistor, a fourth resistor, a capacitor, a diode, a light emitting diode, and a switch; and the first NOT gate, the second NOT gate, the first resistor, the second resistor, the capacitor, and the diode in a hex inverter form a multivibrator. According to the utility model, the provided instrument with advantages of simple circuit, convenient usage and correct determination is suitable for determining performances of various capacitors of 1 picofarad to 1 microfarad; for example, the circuit breaking, the light short circuit or short circuit can be determined. Therefore, the great convenience can be brought for electronics enthusiasts or electronics maintenance personnel.
Description
Technical field
The utility model relates to a kind of capacitance detector, and the electric capacity quality that relates in particular to a kind of energy fast detecting is differentiated instrument.
Background technology
The electrophile will check to element that when making various electronic installation capacitor is one of object that checks.The electrophile generally checks capacitor with multimeter, but cumbersome with the multimeter inspection, is difficult for also accomplishing that correct judgment is errorless.
Summary of the invention
The purpose of this utility model provides a kind of electric capacity quality of energy fast detecting to differentiate instrument with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises battery, the first not gate, the second not gate, the 3rd not gate, the 4th not gate, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, diode, light emitting diode and switch, the positive pole of described battery is connected with an end of described switch, the other end of described switch is connected with the first end of described the first resistance, the second end of described the first resistance simultaneously with the input end of described the first not gate be connected the first end of the second resistance and be connected, the output terminal of described the first not gate simultaneously with the first end of described the 3rd resistance be connected the input end of the second not gate and be connected, the output terminal of described the second not gate simultaneously with the input end of described the 3rd not gate be connected the input end of the 4th not gate and be connected, the output terminal of described the 3rd not gate simultaneously with the output terminal of described the 4th not gate be connected the first end of the 4th resistance and be connected, the second end while of described the second resistance and the second end of described the 3rd resistance, the first end of described electric capacity be connected the negative pole of diode and connect, the positive pole of described diode is connected with the second end of described electric capacity, the second end of described the 4th resistance is connected with the positive pole of described light emitting diode, the negative pole of described light emitting diode is connected with the negative pole of described battery, and the output terminal of described the second not gate and the positive pole of described diode are respectively the test side.
The beneficial effects of the utility model are:
The utility model circuit is simple, easy to use, correct judgment, is applicable to judge the various electric capacity quality of 1pF～1 μ F, as open circuit, slight short circuit and short circuit, for electrophile or electronic maintenance personnel provide convenience.
Description of drawings
Accompanying drawing is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in drawings: the utility model comprises battery, the first not gate G1, the second not gate G2, the 3rd not gate G3, the 4th not gate G4, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, capacitor C 1, diode VD, LED and K switch, the positive pole of described battery is connected with an end of K switch, the other end of K switch is connected with the first end of the first resistance R 1, the second end of the first resistance R 1 simultaneously with the input end of the first not gate G1 be connected the first end of resistance R 2 and be connected, the output terminal of the first not gate G1 simultaneously with the first end of the 3rd resistance R 3 be connected the input end of not gate G2 and be connected, the output terminal of the second not gate G2 is connected with the input end of the 3rd not gate G3 and the input end of the 4th not gate G4 simultaneously, the output terminal of the 3rd not gate G3 is connected with the output terminal of the 4th not gate G4 and the first end of the 4th resistance R 4 simultaneously, the second end while of the second resistance R 2 and the second end of the 3rd resistance R 3, the first end of capacitor C 1 is connected negative pole and is connected with diode VD, the positive pole of diode VD is connected with the second end of capacitor C 1, the second end of the 4th resistance R 4 is connected with the positive pole of LED, the negative pole of LED is connected with the negative pole of battery, and the positive pole of the output terminal of the second not gate G2 and diode VD is respectively the test side.
As shown in drawings: form multivibrator by the first not gate G1, the second not gate G2, the first resistance R 1, the second resistance R 2, capacitor C 1 and diode VD, oscillation frequency is decided by the size of capacitor C 1 and measured capacitance C2 and the 3rd resistance R 3, generally more than several KHz.When measured capacitance C2 had been, circuit produced vibration, and oscillator signal is exported by the second not gate G2, after the 3rd not gate G3 and the 4th not gate G4 isolation, made LED shinny.When measured capacitance C2 internal break, the circuit nonoscillatory.Because the effect of biasing the first resistance R 1 makes the both end voltage of the first not gate G1 that larger difference be arranged, thereby makes the output level of the second not gate G2 higher, about about 6.5V.Make behind the family status three not gate G3 and the 4th not gate G4 like this and be output as low level, luminotron does not work.When measured capacitance C2 internal short-circuit or slight short circuit, then to make the input end of the first not gate G1 by diode VD be high level to the higher level of the second not gate G2 output terminal, thereby the second not gate G2 output also is high level, the 3rd not gate G3 and the 4th not gate G4 output low level, LED does not work.Diode VD is when preventing the testing capacitor short circuit, and the high level that the first not gate G1 may export is added to the output terminal of the second not gate G2 by the 3rd resistance R 3, makes luminotron shinny and produce erroneous judgement.
Claims (1)
1. the electric capacity of energy fast detecting quality is differentiated instrument, it is characterized in that: comprise battery, the first not gate, the second not gate, the 3rd not gate, the 4th not gate, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, electric capacity, diode, light emitting diode and switch, the positive pole of described battery is connected with an end of described switch, the other end of described switch is connected with the first end of described the first resistance, the second end of described the first resistance simultaneously with the input end of described the first not gate be connected the first end of the second resistance and be connected, the output terminal of described the first not gate simultaneously with the first end of described the 3rd resistance be connected the input end of the second not gate and be connected, the output terminal of described the second not gate simultaneously with the input end of described the 3rd not gate be connected the input end of the 4th not gate and be connected, the output terminal of described the 3rd not gate simultaneously with the output terminal of described the 4th not gate be connected the first end of the 4th resistance and be connected, the second end while of described the second resistance and the second end of described the 3rd resistance, the first end of described electric capacity be connected the negative pole of diode and connect, the positive pole of described diode is connected with the second end of described electric capacity, the second end of described the 4th resistance is connected with the positive pole of described light emitting diode, the negative pole of described light emitting diode is connected with the negative pole of described battery, and the output terminal of described the second not gate and the positive pole of described diode are respectively the test side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434733 CN202916373U (en) | 2012-08-30 | 2012-08-30 | Capacitor performance determination instrument with function of rapid detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434733 CN202916373U (en) | 2012-08-30 | 2012-08-30 | Capacitor performance determination instrument with function of rapid detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916373U true CN202916373U (en) | 2013-05-01 |
Family
ID=48164676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220434733 Expired - Fee Related CN202916373U (en) | 2012-08-30 | 2012-08-30 | Capacitor performance determination instrument with function of rapid detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202916373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597361A (en) * | 2015-03-07 | 2015-05-06 | 黄宇嵩 | Capacity performance detector |
| CN104950208A (en) * | 2015-05-22 | 2015-09-30 | 苏州固基电子科技有限公司 | Capacitor quality determination instrument |
| CN110426537A (en) * | 2019-08-22 | 2019-11-08 | 东莞士格电子集团有限公司 | A kind of capacitor detection device |
-
2012
- 2012-08-30 CN CN 201220434733 patent/CN202916373U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597361A (en) * | 2015-03-07 | 2015-05-06 | 黄宇嵩 | Capacity performance detector |
| CN104950208A (en) * | 2015-05-22 | 2015-09-30 | 苏州固基电子科技有限公司 | Capacitor quality determination instrument |
| CN110426537A (en) * | 2019-08-22 | 2019-11-08 | 东莞士格电子集团有限公司 | A kind of capacitor detection device |
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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: 20130501 Termination date: 20130830 |