CN102590728A - Voltage-regulator diode performance tester - Google Patents
Voltage-regulator diode performance tester Download PDFInfo
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- CN102590728A CN102590728A CN2012100689960A CN201210068996A CN102590728A CN 102590728 A CN102590728 A CN 102590728A CN 2012100689960 A CN2012100689960 A CN 2012100689960A CN 201210068996 A CN201210068996 A CN 201210068996A CN 102590728 A CN102590728 A CN 102590728A
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Abstract
The invention relates to a voltage-regulator diode performance tester. The tester includes 220 V AC (alternating current), an AC isolation transformer, a full-wave rectification circuit and a capacitor filtering circuit, an amplitude limiting and current limiting circuit and a test status indication circuit, a test terminal of a to-be-tested voltage-regulator diode and a power supply indication circuit. In recent decades, foreign electronic products and components flock in, most of voltage-regulator diode parameter data is difficult to find, thereby bringing great troubles to voltage-regulator diode application in the electronic products and overhaul of the electronic products. In addition, when the electronic products are produced and maintained, newly bought voltage-regulator diodes are required to be subjected to performance tests and screening sometime. Through the voltage-regulator diode performance tester provided by the invention, the voltage stabilization value of a low-power voltage-regulator diode within the range of 1-150 V can be measured. When a DC (direct current) voltage is tested, a DC voltage range of a digital multimeter is used, and the reading on the digital multimeter is the voltage stabilization value of the tested voltage-regulator diode.
Description
Technical field
The invention belongs to the diode detection technical field, is about a kind of voltage stabilizing diode performance test device.
Background technology
Although there are many integrated form voltage stabilizer integrated circuit to occur at present, voltage stabilizing diode still is widely used in the various electronic circuits, as: mu balanced circuit in the colour TV and holding circuit etc. just have extensive application.Nearly decades, because pouring in of external electronic product and components and parts makes the parameter data of many voltage stabilizing diodes be difficult to search, this uses for the voltage stabilizing diode of electronic product and the electronic product maintenance brings very burden.In addition; When producing and keep in repair electronic product; Sometimes the parameter request to voltage stabilizing diode is tighter, as: the voltage stabilizing diode in the colour TV holding circuit, just need carry out Performance Detection and screening to the voltage stabilizing diode of newly purchasing; So it is necessary to design and produce a voltage stabilizing diode performance test device.
The voltage stabilizing value of miniwatt voltage stabilizing diode in the voltage stabilizing diode performance test device of the present invention, its energy measurement 1～150V scope.The test DC voltage preferably uses the DC voltage retaining of digital multimeter, and reading is the voltage stabilizing value of tested voltage stabilizing diode on the digital voltmeter.
Voltage stabilizing diode performance test device of the present invention is a special measurement circuit, and this tester can be tested the stable voltage of voltage stabilizing diode fast, has than means of testing such as using common multimeter and uses simply, tests accurately.
Below specify voltage stabilizing diode performance test device of the present invention related relevant technologies content in manufacturing process.
Summary of the invention
Goal of the invention and beneficial effect: nearly decades, because the pouring in of external electronic product and components and parts, the parameter data of a lot of voltage stabilizing diodes is difficult to search, and this uses for voltage stabilizing diode of electronic product to overhaul with electronic product and brings very burden.In addition, when producing and keep in repair electronic product, need carry out Performance Detection and screening to the voltage stabilizing diode of newly purchasing sometimes.The voltage stabilizing value of miniwatt voltage stabilizing diode in the voltage stabilizing diode performance test device of the present invention, its energy measurement 1～150V scope.The test DC voltage preferably uses the DC voltage retaining of digital multimeter, and reading is the voltage stabilizing value of tested voltage stabilizing diode on the digital voltmeter.
The circuit working principle: it works in the backward section of semiconductor diode VA characteristic curve voltage stabilizing diode, has utilized the phenomenon of semiconductor reverse breakdown.Voltage stabilizing diode performance test device utilizes this phenomenon to design and produce.Test circuit is made up of 220V alternating current isolating transformer, full-wave rectifying circuit, filtering circuit, current limiting pressure-limiting circuit and D.C. voltmeter.Electrochemical capacitor C1 is a filter capacitor, and resistance R 1 is the amplitude limit bleeder resistance of holding concurrently, potentiometer RP and the resistance R 2 common current limlitings of being responsible for.
Technical scheme: voltage stabilizing diode performance test device; It comprises 220V alternating current, alternating current isolating transformer, full-wave rectifying circuit and capacitor filter, amplitude limit and current-limiting circuit and test mode indicating circuit, tested voltage stabilizing diode detection terminal and power indicating circuit, it is characterized in that:
Full-wave rectifying circuit and capacitor filter: form by alternating current isolating transformer T, full-bridge rectification element QZ, electrochemical capacitor C1; The alternating current input end of full bridge rectifier connects the two ends of alternating current isolating transformer T secondary coil L2 respectively; The cathode output end of full bridge rectifier connects the positive pole of electrochemical capacitor C1, and the negative pole of electrochemical capacitor C1 links to each other with the cathode output end of full bridge rectifier and circuit ground GND;
Amplitude limit and current-limiting circuit and test mode indicating circuit: form by resistance R 1, potentiometer RP and resistance R 2; The positive pole of one termination electrochemical capacitor C1 of resistance R 1, an end and the lever arm thereof of potentiometer RP; The end of the other end connecting resistance R2 of potentiometer RP; The positive pole of the other end sending and receiving optical diode LED1 of resistance R 2; The negative pole of LED 1 meets the positive pole and the tested voltage stabilizing diode detection terminal a of digital voltmeter, the other end connection circuit ground GND of resistance R 1, the negative pole of digital voltmeter and tested voltage stabilizing diode detection terminal b.
Power indicating circuit: the end of the terminating resistor R3 of alternating current isolating transformer T secondary coil L, the positive pole of the other end sending and receiving optical diode LED2 of resistance R 3, the negative pole of LED 2 connects the other end of alternating current isolating transformer T secondary coil L2.
Description of drawings
Accompanying drawing 1 is the embodiment circuit working schematic diagram that the present invention provides a voltage stabilizing diode performance test device.
Embodiment
Implement according to the circuit working schematic diagram of the device of voltage stabilizing diode performance test shown in the accompanying drawing 1 and the components and parts technical requirement of description of drawings and the following stated, can realize the present invention.
The selection of components and parts and technical parameter thereof
QZ is the full-bridge rectification element, can select 4 silicon rectifier diodes for use, and model is 1N4007;
LED1 is a green LED, and LED2 is a red light emitting diodes;
Circuit all uses 1/4 metalfilmresistor, and the resistance of resistance R 1 is 200K Ω; The resistance of resistance R 2 is 10K Ω; The resistance of resistance R 3 is that 120 Ω, RP are linear potentiometer, and its resistance is 22K Ω;
C1 is an electrochemical capacitor, and its capacity is 22 μ F, 200V;
RX is a 220V alternating current fuse, working current 0.3A;
SW is that one pole is turned round sub-switch.
Circuit production main points, circuit debugging and use
The making of alternating current isolating transformer T: use " EI " sections core of 15W, primary coil L1 selects for use ￠ 0.16 enameled wire around 1320 circles on skeleton, and secondary coil L2 selects for use ￠ 0.16 enameled wire around 750 circles, and secondary coil L3 selects for use ￠ 0.16 enameled wire around 20 circles;
The circuit of voltage stabilizing diode performance test device is so long as the electronic devices and components performance of using is intact; Annexation according to components and parts shown in the accompanying drawing 1 is welded; And to physics wiring is conscientiously checked and is checked, and install, welding errorless after, circuit need not debugged basically can operate as normal;
When using voltage stabilizing diode performance test device, shown in accompanying drawing 1, insert calibrating terminal to tested voltage stabilizing diode, connect the 220V alternating current; And turn on the power switch SW; At this moment LED 1 sends green glow, explains that circuit tests, when adjusting potentiometer RP on a large scale; Voltage readings on the digital voltmeter has variation by a small margin, and reading mean value is exactly the voltage stabilizing value of tested voltage stabilizing diode;
If the voltage stabilizing value of the voltage stabilizing diode of testing is lower; Then the voltage of alternating current isolating transformer secondary coil can suitably reduce; Also can be for alternating current isolating transformer T secondary coil increases by two groups of taps, with the lower voltage stabilizing diode of adaptive testing voltage stabilizing value;
The present invention can also test transistor withstand voltage below the 150V, if transistorized collector C, emitter E are inserted, then can measure transistorized withstand voltage; It should be noted that: 3AD class PNP transistor to penetrate leakage current bigger, the withstand voltage of surveying on the low side a bit; If desire the withstand voltage of Testing in TV administration-management, must the voltage of transformer secondary output coil L2 further be improved, during coiling secondary coil winding, the insulation between winding need further be strengthened.
Claims (2)
1. voltage stabilizing diode performance test device; It comprises 220V alternating current, alternating current isolating transformer, full-wave rectifying circuit and capacitor filter, amplitude limit and current-limiting circuit and test mode indicating circuit, tested voltage stabilizing diode detection terminal and power indicating circuit, it is characterized in that:
Full-wave rectifying circuit and capacitor filter are made up of alternating current isolating transformer T, full-bridge rectification element QZ, electrochemical capacitor C1; The alternating current input end of full bridge rectifier connects the two ends of alternating current isolating transformer T secondary coil L2 respectively; The cathode output end of full bridge rectifier connects the positive pole of electrochemical capacitor C1, and the negative pole of electrochemical capacitor C1 links to each other with the cathode output end of full bridge rectifier and circuit ground GND;
Amplitude limit and current-limiting circuit and test mode indicating circuit are made up of resistance R 1, potentiometer RP and resistance R 2; The positive pole of one termination electrochemical capacitor C1 of resistance R 1, an end and the lever arm thereof of potentiometer RP; The end of the other end connecting resistance R2 of potentiometer RP; The positive pole of the other end sending and receiving optical diode LED1 of resistance R 2; The negative pole of LED 1 meets the positive pole and the tested voltage stabilizing diode detection terminal a of digital voltmeter, the other end connection circuit ground GND of resistance R 1, the negative pole of digital voltmeter and tested voltage stabilizing diode detection terminal b.
2. voltage stabilizing diode performance test device according to claim 1; It is characterized in that: the end of the terminating resistor R3 of alternating current isolating transformer T secondary coil L in the power indicating circuit; The positive pole of the other end sending and receiving optical diode LED2 of resistance R 3, the negative pole of LED 2 connects the other end of alternating current isolating transformer T secondary coil L2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100689960A CN102590728A (en) | 2012-03-15 | 2012-03-15 | Voltage-regulator diode performance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100689960A CN102590728A (en) | 2012-03-15 | 2012-03-15 | Voltage-regulator diode performance tester |
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| CN102590728A true CN102590728A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100689960A Pending CN102590728A (en) | 2012-03-15 | 2012-03-15 | Voltage-regulator diode performance tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608407A (en) * | 2012-03-26 | 2012-07-25 | 黄勇 | Device for detecting stabilizing voltage value of voltage stabilizing diode |
| CN104360147A (en) * | 2014-11-24 | 2015-02-18 | 中国航空工业集团公司洛阳电光设备研究所 | Test equipment for three-end voltage regulator |
Citations (6)
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| JPS5458473A (en) * | 1977-10-18 | 1979-05-11 | Nec Corp | Measuring method of zener voltage |
| JPS5764179A (en) * | 1980-10-06 | 1982-04-19 | Mitsubishi Electric Corp | Testing method for semiconductor device |
| CN201096863Y (en) * | 2007-10-25 | 2008-08-06 | 姜树德 | Voltage regulated diode tester |
| CN201273933Y (en) * | 2008-07-03 | 2009-07-15 | 金天 | Diode electric characteristic test system |
| CN102375084A (en) * | 2010-08-19 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Voltage stabilizing diode detection circuit |
| CN202453466U (en) * | 2012-03-15 | 2012-09-26 | 刘喆 | Voltage-stabilizing diode performance tester |
-
2012
- 2012-03-15 CN CN2012100689960A patent/CN102590728A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5458473A (en) * | 1977-10-18 | 1979-05-11 | Nec Corp | Measuring method of zener voltage |
| JPS5764179A (en) * | 1980-10-06 | 1982-04-19 | Mitsubishi Electric Corp | Testing method for semiconductor device |
| CN201096863Y (en) * | 2007-10-25 | 2008-08-06 | 姜树德 | Voltage regulated diode tester |
| CN201273933Y (en) * | 2008-07-03 | 2009-07-15 | 金天 | Diode electric characteristic test system |
| CN102375084A (en) * | 2010-08-19 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Voltage stabilizing diode detection circuit |
| CN202453466U (en) * | 2012-03-15 | 2012-09-26 | 刘喆 | Voltage-stabilizing diode performance tester |
Non-Patent Citations (1)
| Title |
|---|
| 黄荣根: "自制稳压二极管测量器", 《家电检修技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608407A (en) * | 2012-03-26 | 2012-07-25 | 黄勇 | Device for detecting stabilizing voltage value of voltage stabilizing diode |
| CN104360147A (en) * | 2014-11-24 | 2015-02-18 | 中国航空工业集团公司洛阳电光设备研究所 | Test equipment for three-end voltage regulator |
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Application publication date: 20120718 |