LED lamp testing circuit
A technology of LED lights and test circuits, which is applied in the field of electrical component testing, can solve the problems of large human errors, the power factor of LED lights can only be randomly checked, and the establishment of a product reliability database, etc., to achieve the effect of simple testing items
Inactive Publication Date: 2015-06-24
SHUNDE POLYTECHNIC
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Problems solved by technology
[0002] At present, there are many factories producing LED lights in China, but the performance testing equipment of LED lights is quite simple. In the industry, the detection methods of LED lights are very backward. Most manufacturers conduct power-on tests 8 hours before the products leave the factory. For LED lights The power factor can only be randomly checked, and it is tested by workers holding multimeters. There are large human errors, and there is no special system to automatically summarize product data and establish a product reliability database.
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[0014] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0015] see Figure 1-4 , The LED lamp test circuit of the present invention adopts PLC control technology, and the RS485 bus transmits data to the PLC host, and connects to the PC / touch screen through the RS232 interface for data display and viewing. Control the input voltage of KA1, KA2, KA3 and other groups (respectively 220V, 110V, 85V) through the output signal of the host computer. After comparing the collected data, an alarm will be output, and the touch screen can be checked through the sound / light prompt. It can also be connected...
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The invention discloses an LED lamp testing circuit. The LED lamp testing circuit comprises 220V power supply input, a transformer, a PLC mainframe, a 16-path relay control module and an alternating current detecting module, wherein the eight contacts of the 16-path relay control module can be respectively connected with eight LED lamps, the other eight contacts are used for sequentially serially connecting the alternating current detecting module to the testing circuits of the eight LED lamps. The PLC mainframe is in communication connection with the 16-path relay control module and the alternating current detecting module through a 485 bus. By the LED lamp testing circuit, the problems that current LED lamp delivery inspection is out-dated in means and simple in item are solved, and help is provided to product performance research and analysis and improved design.
Description
technical field [0001] The invention relates to the technical field of electrical component detection, and more specifically relates to an LED lamp test circuit. Background technique [0002] At present, there are many factories producing LED lights in China, but the performance testing equipment of LED lights is quite simple. In the industry, the detection methods of LED lights are very backward. Most manufacturers conduct power-on tests 8 hours before the products leave the factory. For LED lights The power factor can only be randomly checked, and it is tested by workers holding multimeters. There are large human errors, and there is no special system to automatically summarize product data and establish a product reliability database. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the present invention provides an LED lamp test circuit with advanced detection means, which can simultaneously detect multiple groups of products, and...
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IPC IPC(8): G01R31/44
Inventor 杨小东邓榆林曾昭君毛行彪
Owner SHUNDE POLYTECHNIC