LED constant current driver

　　Since LED is a semiconductor device with characteristic sensitivity and has negative temperature characteristics, it is necessary to stabilize the state of working status and protection during the application process, which has a driving concept. LED devices are almost harsh on driving power. LEDs are not like ordinary incandescent bulbs, and can directly connect 220V AC market electricity. LED is a low voltage driver of 2 to 3 volts. It must be designed to design complex transform circuits. LED lights with different uses must be equipped with different power adapters. In the international market, foreign customers' efficiency conversion, effective power, constant current accuracy, power life, and electromagnetic compatibility are very high on the efficiency conversion, effective power, constant current accuracy, power supply life, and electromagnetic compatibility of foreign customers. The role is as important as the heart of a human.

　　When using LED as a display or other lighting device or backlight, it is necessary to perform a constant current driver. The main reason is:

　　1. Avoid the driving current exceeding the maximum rated value, affecting its reliability.

　　2. Get the expected brightness requirements and ensure the consistency of the brightness and chromaticity of each LED.

　　3. It can effectively avoid lightning strikes, waves of grids, over -current, and overvoltage protection, making LED longer life.

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