LED constant current drive inventory

The LED drive power supply converts the power supply into a specific voltage and current to drive the LED light-emitting voltage converter. Generally, the input of the LED drive power includes high-voltage power frequency AC (ie mains), low-voltage DC, high-voltage DC, low-voltage and high-frequency AC (such as the output of an electronic transformer), etc. The output of the LED driving power supply is mostly a constant current source that can change the voltage with the change of the forward voltage drop of the LED. The core components of the LED power supply include switching controllers, inductors, switching components (MOSfet), feedback resistors, input filter components, output filter components, and so on. According to the requirements of different occasions, there are also input over-voltage protection circuits, input under-voltage protection circuits, LED open-circuit protection, over-current protection and other circuits.