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Detector

A detection device, voltage detection technology, applied in the direction of measuring device, measuring electricity, vacuum tube test, etc., can solve the problem of inconvenient detection of the detection system

Inactive Publication Date: 2007-06-27
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the inconvenient problem of the detection system in the prior art, it is necessary to provide a detection device that is more convenient for detection

Method used

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Embodiment Construction

[0013] Please refer to FIG. 2 , which is a schematic diagram of a preferred embodiment of the detection device of the present invention. The detection device 2 includes an input terminal 22 , a switch 23 , a power circuit 24 , a voltage regulation unit 25 , an inverter circuit unit 26 , a detection unit 28 and an output terminal 29 . The detection unit 28 includes a first detection unit 281 and a second detection unit 282 .

[0014] The input terminal 22 is connected to a 220V or 110V AC power supply via wires. The AC power is provided to the power circuit 24 via the input terminal 22 and the switch 23 , and the power circuit 24 can step down and rectify the 220V or 110V AC power to 18V DC and output it to the input terminal 251 of the voltage regulation unit 25 . The voltage regulating unit 25 can regulate the 18V direct current, and then output it to the input terminal 261 of the inverter circuit unit 26 via the output terminal 257 . The inverter circuit unit 26 can invert...

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Abstract

The detection device includes an input end, a power supply circuit, an inverter circuit unit, a voltage regulation unit, an output unit, and a detection unit. The input end is in use for inputting AC. The power supply circuit is in use for stepping down voltage, and rectifying AC to DC. The inverter circuit unit is in use for inverting DC to AC, and for stepping up voltage. The voltage regulation unit is in use for adjusting the input voltage for the inverter circuit unit; and the output end is in use for outputting the stepped up AC. The detection unit includes a first voltage detection unit, and a second voltage detection unit. The first voltage detection unit is in use for measuring the input voltage of the inverter circuit unit, and the second voltage detection unit is in use for measuring the output voltage of the inverter circuit unit. It is convenient for the detection device to carry out detecting.

Description

【Technical field】 [0001] The invention relates to a detection device, in particular to a cold cathode ray tube detection device. 【Background technique】 [0002] With the rapid development of science and technology, liquid crystal displays have gradually become the mainstream in the display field, but this also puts forward higher requirements on the reliability of liquid crystal displays. The cold cathode ray tube (Cold Cathode Fluorescent Lamp, CCFL) is usually an important component of the liquid crystal display, especially the lighting voltage of the cold cathode ray tube has a great influence on the reliability of the liquid crystal display, so the reliability test of the cold cathode ray tube It seems very necessary. [0003] Please refer to FIG. 1 , which is a detection schematic diagram of a cold cathode ray tube detection system in the prior art. The detection system 100 includes a DC voltage source 120 , an inverter circuit unit 130 and an oscilloscope 150 . The ...

Claims

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Application Information

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IPC IPC(8): G01R31/26G01R31/00H01L21/66G01R31/25
Inventor 周通肖华鲁建辉
Owner INNOCOM TECH SHENZHEN
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