Simple multi-channel current tester

Abstract

The invention discloses a simple multi-channel current tester which comprises a band switch, a timer and a plurality of ampere meters. A relay unit is arranged corresponding to each ampere meter. The relay unit comprises a first relay, a second relay and a third relay. The band switch is capable of controlling the electricity obtaining work of the timer and is capable of controlling the electricity obtaining work of either of the coil of the first relay or the coil of the second relay. When the coil of the first relay obtains electricity and works, the ampere meter and a first line are enabled to form access. When the coil of the second relay obtains electricity and works, the ampere meter and a second line are enabled to form access. According to the simple multi-channel current tester, the band switch simultaneously controls three ampere meters to meet a requirement of simultaneously testing current of six lines, test board space is saved, burnout of a product caused by a mistake of an operator is avoided, and meanwhile, work efficiency of the operator is improved.

Description

technical field [0001] The invention relates to a current testing device, in particular to a simple multi-channel current tester, which is suitable for testing the dynamic current when the LED driving power is turned on, and can measure up to six currents. Background technique [0002] The performance of the driving power supply of LED products is an important basis for the wide application of LED products. In order to ensure that the performance of the driving power supply of LED products meets the requirements of use, it is usually necessary to conduct a DC current test on the driving power supply of LED products. When performing a DC test on the driving power supply of LED products, sometimes it is necessary to test six lines of the LED driving power supply at the same time. An independent multimeter is used to test each line, which results in a large number of wiring on the test bench and takes up a lot of space, which is easy to cause wiring errors and cause the product...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention proposes a simple multi-channel current tester, which can realize the conversion and testing of two-channel current by one ammeter. It is easy to operate and use, and it is not easy to connect wrong wires. The tester can be tested after being inserted into the substrate; the three ammeters simultaneously controlled by the band switch can meet the needs of testing six currents at the same time, which can save the space of the test bench, avoid the operator’s wrong operation and cause the product to burn out, and improve the efficiency of the operator. work efficiency

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