According to power supply voltage: HIGH VOLTAGE AC 85-265, low voltage 1.5-36 v
According to power supply mode: constant voltage source and constant current source. According to the isolation relation of input and output: isolated power source and non-isolated power source.
Input Voltage and output voltage: step-up, step-down, step-down. And so on LED can not use power supply directly like traditional light source, need drive circuit to change power supply to DC current to work.
Led drive circuit type, structure and the type of power supply, usually divided into DC power supply, AC power supply two categories.
