CN102608407A - Device for detecting stabilizing voltage value of voltage stabilizing diode - Google Patents
Device for detecting stabilizing voltage value of voltage stabilizing diode Download PDFInfo
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- CN102608407A CN102608407A CN2012100811394A CN201210081139A CN102608407A CN 102608407 A CN102608407 A CN 102608407A CN 2012100811394 A CN2012100811394 A CN 2012100811394A CN 201210081139 A CN201210081139 A CN 201210081139A CN 102608407 A CN102608407 A CN 102608407A
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- voltage stabilizing
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- stabilizing diode
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Abstract
The invention belongs to the detection technical field of a voltage stabilizing diode and relates to a device for detecting stabilizing voltage value of the voltage stabilizing diode. The detecting device comprises a 200V alternating current, an alternating-current transformer, a full wave rectifying circuit, a filter circuit, a current-limiting circuit and a test state indicating circuit, a detection terminal of a detected voltage stabilizing diode and a power state indicating circuit. The device for detecting the stabilizing voltage value of the voltage stabilizing diode can measure low-power stabilizing voltage value of the voltage stabilizing diode in 1-100V range. In order to test the direct-current voltage accurately, the device uses direct-current voltage stop of a digital multimeter; the reading number on the digital multimeter is the stabilizing voltage of the detected voltage stabilizing diode. The device for detecting the stabilizing voltage value of the voltage stabilizing diode is a special test circuit. The detecting device can quickly test the stabilizing voltage value of the voltage stabilizing diode, is simple to use and is accurate to test in comparison with testing methods such as normal universal meter.
Description
Technical field
The invention belongs to voltage stabilizing diode detection technique field, is about a kind of detection voltage stabilizing diode voltage stabilizing value device.
Background technology
Although there have been many integrated form voltage stabilizer integrated circuit to occur, voltage stabilizing diode still is widely used in the various electronic circuits.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 brings very burden for voltage stabilizing diode use and electronic product maintenance in the electronic product.In addition, in electronic product production and electronic product maintenance process, the parameter request to voltage stabilizing diode is tighter sometimes, for example: and 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.Therefore, design and produce very necessity of a kind of voltage stabilizing diode device for detecting performance.
The voltage stabilizing value of miniwatt voltage stabilizing diode in the detection voltage stabilizing diode voltage stabilizing value device of the present invention, its energy measurement 1～100V scope.Accurate in order to test DC voltage, make the present invention use the DC voltage retaining of digital multimeter, reading is the voltage stabilizing value of tested voltage stabilizing diode on the digital voltmeter.
Detection voltage stabilizing diode voltage stabilizing value device of the present invention is a special test circuit, and this pick-up unit can be tested the stable voltage of voltage stabilizing diode fast, and it has simple, the characteristic of accurate test of use than means of testing such as using common multimeter.
Below specify detection voltage stabilizing diode voltage stabilizing value device of the present invention related relevant technologies content in manufacturing process.
Summary of the invention
Goal of the invention and beneficial effect: the voltage stabilizing value of miniwatt voltage stabilizing diode in the detection voltage stabilizing diode voltage stabilizing value device of the present invention, its energy measurement 1～100V scope.Accurate in order to test DC voltage, make the present invention use the DC voltage retaining of digital multimeter, reading is the voltage stabilizing value of tested voltage stabilizing diode on the digital voltmeter.
Detection voltage stabilizing diode voltage stabilizing value device of the present invention is a special test circuit, and this pick-up unit can be tested the stable voltage of voltage stabilizing diode fast, and it has simple, the characteristic of accurate test of use than means of testing such as using common multimeter.
Technical characterictic: detect voltage stabilizing diode voltage stabilizing value device; It comprises 220V alternating current, AC transformer, full-wave rectifying circuit and filtering circuit, current-limiting circuit and test mode indicating circuit, tested voltage stabilizing diode detection terminal and power supply status indicating circuit, it is characterized in that:
Full-wave rectifying circuit and filtering circuit: form by AC transformer T, full-bridge rectification element QZ, electrochemical capacitor C1; The alternating current input end of full bridge rectifier connects the two ends of AC transformer T secondary coil L2 respectively; The cathode output end of full bridge rectifier connects the positive pole of electrochemical capacitor C1, and the cathode output end of full bridge rectifier links to each other with negative pole and the circuit ground GND of electrochemical capacitor C1;
Current-limiting circuit and test mode indicating circuit: form by resistance R 2, potentiometer RP, LED 2 and digital voltmeter; The positive pole of one termination electrochemical capacitor C1 of resistance R 2; An end and the lever arm thereof of another termination potentiometer RP of resistance R 2; The positive pole of the other end sending and receiving optical diode LED2 of potentiometer RP; The negative pole of LED 2 meets the positive pole and the tested voltage stabilizing diode detection terminal a of digital voltmeter, and the negative pole of digital voltmeter and tested voltage stabilizing diode detection terminal b link to each other with circuit ground GND.
Power supply status indicating circuit: the positive pole of a termination electrochemical capacitor C1 of resistance R 1, the positive pole of the other end sending and receiving optical diode LED1 of resistance R 1, the negative pole connection circuit ground GND of LED 1.
The circuit working principle: it works in semi-conductive VA characteristic curve backward section voltage stabilizing diode, and voltage stabilizing is to have utilized semiconductor reverse breakdown phenomenon.The device that detects voltage stabilizing diode voltage stabilizing value utilizes this phenomenon and principle design to make.Testing circuit is made up of 220V alternating current isolating transformer, full-wave rectifying circuit, filtering circuit, current-limiting circuit and D.C. voltmeter.Electrochemical capacitor C1 is a filter capacitor, and resistance R 1 and LED 1 are direct supply indicating circuit hold concurrently amplitude limit and releasing effect, the current limlitings of potentiometer RP and resistance R 2 jointly responsible voltage stabilizing diodes to be detected.
Description of drawings
Accompanying drawing 1 is that the present invention provides an embodiment circuit working schematic diagram that detects voltage stabilizing diode voltage stabilizing value device.
Embodiment
Implement according to circuit working schematic diagram that detects voltage stabilizing diode voltage stabilizing value device 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 red light emitting diodes; LED2 is a green LED,
Circuit all uses 1/4 metalfilmresistor, and the resistance of resistance R 1 is 22K Ω; The resistance of resistance R 2 is 10K Ω; RP is a linear potentiometer, and its resistance is 27K Ω;
C1 is an electrochemical capacitor, and its capacity is 68 μ F, 200V;
SW is that one pole is turned round sub-switch.
Circuit production main points, circuit debugging and use
AC transformer T makes: use 15W " EI " sections core, primary coil L1 selects for use ￠ 0.16 enameled wire around 1520 circles on the skeleton of iron core, and secondary coil L2 selects for use ￠ 0.16 enameled wire around 650 circles;
The circuit that detects voltage stabilizing diode voltage stabilizing value 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 detection voltage stabilizing diode voltage stabilizing value device, shown in accompanying drawing 1, insert calibrating terminal to tested voltage stabilizing diode, connect the 220V alternating current; And energized switch SW; At this moment LED 2 sends green glow, explains that circuit tests, when adjusting potentiometer RP on a large scale; Voltage readings on the digital voltmeter has only variation by a small margin, and the mean value of reading number voltage table is exactly tested voltage stabilizing diode voltage stabilizing value;
If the voltage stabilizing value of the voltage stabilizing diode of testing is lower, then the voltage of AC transformer T secondary coil can suitably reduce, also can be for AC transformer T secondary coil increases by two groups of taps, with the lower voltage stabilizing diode of adaptive testing voltage stabilizing value;
Detect voltage stabilizing diode voltage stabilizing value device and can also test transistor withstand voltage below the 100V,, then can measure transistorized withstand voltage if transistorized collector C, emitter E are inserted; 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 insulating material between winding will be noted strengthening.
Claims (2)
1. one kind is detected voltage stabilizing diode voltage stabilizing value device; It comprises 220V alternating current, AC transformer, full-wave rectifying circuit and filtering circuit, current-limiting circuit and test mode indicating circuit, tested voltage stabilizing diode detection terminal and power supply status indicating circuit, it is characterized in that:
Full-wave rectifying circuit and filtering circuit are made up of AC transformer T, full-bridge rectification element QZ, electrochemical capacitor C1; The alternating current input end of full bridge rectifier connects the two ends of AC transformer T secondary coil L2 respectively; The cathode output end of full bridge rectifier connects the positive pole of electrochemical capacitor C1, and the cathode output end of full bridge rectifier links to each other with negative pole and the circuit ground GND of electrochemical capacitor C1;
Current-limiting circuit and test mode indicating circuit are made up of resistance R 2, potentiometer RP, LED 2 and digital voltmeter; The positive pole of one termination electrochemical capacitor C1 of resistance R 2; An end and the lever arm thereof of another termination potentiometer RP of resistance R 2; The positive pole of the other end sending and receiving optical diode LED2 of potentiometer RP; The negative pole of LED 2 meets the positive pole and the tested voltage stabilizing diode detection terminal a of digital voltmeter, and the negative pole of digital voltmeter and tested voltage stabilizing diode detection terminal b link to each other with circuit ground GND.
2. detection voltage stabilizing diode voltage stabilizing value device according to claim 1; It is characterized in that: the positive pole of a termination electrochemical capacitor C1 of the resistance R 1 in the power supply status indicating circuit; The positive pole of the other end sending and receiving optical diode LED1 of resistance R 1, the negative pole connection circuit ground GND of LED 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100811394A CN102608407A (en) | 2012-03-26 | 2012-03-26 | Device for detecting stabilizing voltage value of voltage stabilizing diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100811394A CN102608407A (en) | 2012-03-26 | 2012-03-26 | Device for detecting stabilizing voltage value of voltage stabilizing diode |
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| CN102608407A true CN102608407A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100811394A Pending CN102608407A (en) | 2012-03-26 | 2012-03-26 | Device for detecting stabilizing voltage value of voltage stabilizing diode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454089A (en) * | 2013-09-12 | 2013-12-18 | 中国航天科技集团公司第四研究院四0一所 | Device for measuring class of discontinuous parameters of solid rocket engine |
| CN103675418A (en) * | 2012-09-19 | 2014-03-26 | 深圳市海洋王照明工程有限公司 | Network voltage monitoring circuit |
| CN109212415A (en) * | 2018-11-28 | 2019-01-15 | 重庆欧锐特科技有限公司 | A kind of detection system with voltage regulator circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096863Y (en) * | 2007-10-25 | 2008-08-06 | 姜树德 | Voltage regulated diode tester |
| CN201845072U (en) * | 2010-10-20 | 2011-05-25 | 赵赫 | Portable wide-range detection device for voltage-regulating value of voltage-regulator tube |
| 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 |
| CN102590728A (en) * | 2012-03-15 | 2012-07-18 | 刘喆 | Voltage-regulator diode performance tester |
-
2012
- 2012-03-26 CN CN2012100811394A patent/CN102608407A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096863Y (en) * | 2007-10-25 | 2008-08-06 | 姜树德 | Voltage regulated diode tester |
| 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 |
| CN201845072U (en) * | 2010-10-20 | 2011-05-25 | 赵赫 | Portable wide-range detection device for voltage-regulating value of voltage-regulator tube |
| CN102590728A (en) * | 2012-03-15 | 2012-07-18 | 刘喆 | Voltage-regulator diode performance tester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675418A (en) * | 2012-09-19 | 2014-03-26 | 深圳市海洋王照明工程有限公司 | Network voltage monitoring circuit |
| CN103675418B (en) * | 2012-09-19 | 2017-12-15 | 深圳市海洋王照明工程有限公司 | A kind of line voltage observation circuit |
| CN103454089A (en) * | 2013-09-12 | 2013-12-18 | 中国航天科技集团公司第四研究院四0一所 | Device for measuring class of discontinuous parameters of solid rocket engine |
| CN109212415A (en) * | 2018-11-28 | 2019-01-15 | 重庆欧锐特科技有限公司 | A kind of detection system with voltage regulator circuit |
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Application publication date: 20120725 |