led drive power supply

Electrical energy is so useful because it is readily converted into other useful energy.the electrical energy is so amazing . led drive power supply ‘s exactly what he’s counting on.The input power are translated into particular way(LED voltage and LED electrical current) by led power supply to drive LED . Usually, When it is used in the AC 220 V circuit (Suppose we have a input resource) . It consists of AC 、low voltage DC、high power voltage DC、low voltage high frequency . the market provide most of the constant current source . Constant current source can avoid the fluctuations of output current due to the fluctuations of input voltage, and maintain the brightness of LED. the Core components of led power supply include: Switching Controller 、MOSfet 、Feedback resistor、input filter device elect (Phase Locked Tracking filter).