Development of a new measuring instrument for switching power supply

Abstract

Today's society has entered the era of industrial 4.0. LED power supply testing focuses more on efficiency and coordination of production and other factors. To this end, we invented the LED power wireless quality detection feedback device. This device takes the high-efficiency tester of LED power supply as the lower computer. Through the wireless communication interface JN5139 chip, the test results of the quality of LED power supply are sent to the PC computer of the upper computer, and the upper and lower current parameters of the lower computer can be changed by sending data through the wireless module in the upper computer. So our test system has the functions of online management and offline monitoring. Experiments show that the qualified LED power supply has good resistance to four important factors affecting surge current, such as lightning attenuation oscillation frequency, electrostatic discharge frequency, voltage sudden change frequency and switching action frequency.