CN202994960U - Withstanding voltage tester - Google Patents
Withstanding voltage tester Download PDFInfo
- Publication number
- CN202994960U CN202994960U CN 201220647980 CN201220647980U CN202994960U CN 202994960 U CN202994960 U CN 202994960U CN 201220647980 CN201220647980 CN 201220647980 CN 201220647980 U CN201220647980 U CN 201220647980U CN 202994960 U CN202994960 U CN 202994960U
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- resistance
- withstanding voltage
- anodal
- voltage
- negative pole
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Abstract
A withstanding voltage tester used for withstanding voltage tests of electronic elements and components is characterized in that a measurement circuit of the tester is composed of a power transformer, an adjusting triode, diodes, capacitors, resistors, a voltmeter, and an ammeter. When the withstanding voltage tester is utilized, an element/component to be tested is connected between test connecting terminals and an adjustable resistor is adjusted so as to enable voltage between the connecting terminals to change continuously until the ammeter displays a rated current value, and for the time being, a voltage value indicated by the voltmeter is the withstanding voltage value of the element/component under rated current. According to the utility model, output voltage is continuous and adjustable; direct reading can be realized; the accuracy is high; the utilization is convenient; and the withstanding voltage tester is applicable to the withstanding voltage tests of the elements and components such as transistors, and is also applicable to measurements of the resistance of resistors as well as the quality of neon tubes, to estimations of the withstanding voltage value between windings of transformers, or to utilization as an adjustable power supply of an electronic device.
Description
Technical field
The utility model relates to a kind of measurement mechanism, particularly a kind of withstands voltage tester for electronics unit, device withstand voltage test.
Background technology
At present, during test as the electronics such as transistor units, device withstand voltage, must be on one side manual adjustment additional power source voltage, use again in addition the instrument measurement voltage value, troublesome poeration affects accuracy of measurement.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned weak point, and provides a kind of output voltage adjustable continuously, direct reading, and accuracy is high, withstands voltage tester easy to use.
the purpose of this utility model is achieved in that a kind of withstands voltage tester, comprises shell, it is characterized in that its metering circuit by power transformer T, adjusts triode BG, diode D1, D2, D3, D4, D5, capacitor C1, C2, C3, resistance R 1, R2, R3, adjustable resistance RP, voltage table V, reometer mA forms, and wherein T level L1 one end of power transformer is connected in series capacitor C1, and it is anodal that the C1 other end also meets diode D3, the D2 negative pole, the anodal series diode D1 of D2, D3 negative pole series diode D4 is anodal, D4 negative pole shunt-wound capacitance device C2, resistance R 1 one ends, the R1 other end also connects adjustment triode BG collector, voltage table V one end is test link A, test link B serial connection reometer mA, and it is anodal that T level L2 one end of power transformer connects diode D5, and D5 negative pole shunt-wound capacitance device C3 is anodal, resistance R 2 one ends, the R2 other end also connects adjustable resistance RP one end and sliding end, adjust triode BG base stage, BG emitter series resistor R3, T level L1 of power transformer, L2, capacitor C2, voltage table V, reometer mA, resistance R 3, the adjustable resistance RP other end, D1 is anodal, C3 negative pole and ground connection, each element is installed in the enclosure, on panel.
During use, unit to be measured, device are connected between test link A, B, regulate adjustable resistance RP, between link A, B, voltage changes continuously, until reometer mA is when showing load current value, the indicated magnitude of voltage of voltage table V is this yuan, the device proof voltage value under this rated current.Output voltage is adjustable continuously, direct reading, and accuracy is high, and is easy to use.Can be used for the voltage-withstand test of the unit such as transistor, device, also can be used to the quality of measuring resistance resistance, neon tube, the withstand voltage between the estimation Transformer Winding, or make the regulated power supply etc. of electronic installation.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model metering circuit circuit diagram.
Embodiment
Now illustrated embodiment is made detailed description to the utility model by reference to the accompanying drawings.
as shown in Figure 2, in metering circuit, wherein T level L1 one end of power transformer is connected in series capacitor C1, the C1 other end also connects diode D3 positive pole, the D2 negative pole, the anodal series diode D1 of D2, D3 negative pole series diode D4 is anodal, D4 negative pole shunt-wound capacitance device C2, resistance R 1 one ends, the R1 other end also connects adjustment triode BG collector, voltage table V one end, be test link A, test link B serial connection reometer mA, it is anodal that T level L2 one end of power transformer connects diode D5, D5 negative pole shunt-wound capacitance device C3 is anodal, resistance R 2 one ends, the R2 other end also connects adjustable resistance RP one end and sliding end, adjust triode BG base stage, BG emitter series resistor R3, T level L1 of power transformer, L2, capacitor C2, voltage table V, reometer mA, resistance R 3, the adjustable resistance RP other end, D1 is anodal, C3 negative pole and ground connection, each element is installed in the enclosure, on panel.
Claims (1)
1. a withstands voltage tester, comprise shell, it is characterized in that its metering circuit by power transformer T, adjusts triode BG, diode D1, D2, D3, D4, D5, capacitor C1, C2, C3, resistance R 1, R2, R3, adjustable resistance RP, voltage table V, reometer mA forms, and wherein T level L1 one end of power transformer is connected in series capacitor C1, and it is anodal that the C1 other end also meets diode D3, the D2 negative pole, the anodal series diode D1 of D2, D3 negative pole series diode D4 is anodal, D4 negative pole shunt-wound capacitance device C2, resistance R 1 one ends, the R1 other end also connects adjustment triode BG collector, voltage table V one end is test link A, test link B serial connection reometer mA, and it is anodal that T level L2 one end of power transformer connects diode D5, and D5 negative pole shunt-wound capacitance device C3 is anodal, resistance R 2 one ends, the R2 other end also connects adjustable resistance RP one end and sliding end, adjust triode BG base stage, BG emitter series resistor R3, T level L1 of power transformer, L2, capacitor C2, voltage table V, reometer mA, resistance R 3, the adjustable resistance RP other end, D1 is anodal, C3 negative pole and ground connection, each element is installed in the enclosure, on panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647980 CN202994960U (en) | 2012-11-30 | 2012-11-30 | Withstanding voltage tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647980 CN202994960U (en) | 2012-11-30 | 2012-11-30 | Withstanding voltage tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994960U true CN202994960U (en) | 2013-06-12 |
Family
ID=48566129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647980 Expired - Fee Related CN202994960U (en) | 2012-11-30 | 2012-11-30 | Withstanding voltage tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472280A (en) * | 2013-09-12 | 2013-12-25 | 昆山新金福精密电子有限公司 | Voltage detection circuit |
| CN107783000A (en) * | 2017-12-06 | 2018-03-09 | 朱月良 | Auxiliary reclay induced voltage shielding-RC speed selects test box |
-
2012
- 2012-11-30 CN CN 201220647980 patent/CN202994960U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472280A (en) * | 2013-09-12 | 2013-12-25 | 昆山新金福精密电子有限公司 | Voltage detection circuit |
| CN107783000A (en) * | 2017-12-06 | 2018-03-09 | 朱月良 | Auxiliary reclay induced voltage shielding-RC speed selects test box |
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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: 20130612 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |