Electromagnetic interference is easy to produce, and sometimes even the human ear can hear the noise. Important task of LED drive circuit; Voltage boost, inductance boost and charge pump boost are two different topological modes.
Protection: the lamp is installed outside, the power structure should be waterproof, moisture-proof, and the shell should be sun resistant. LED power supply is an important factor affecting LED lamps and lanterns. The life of the driving power supply should be matched with the life of LED. This has a great impact on the LED lamp, and if there is a problem with the power supply, the consequences can be devastating.