Patent ID: 9125248
Filing Date: 2015-09-01
Classification: H05B,Y02B

Abstract:
1. An intelligent LED drive power, includes an EMI filter of which the input is connected to the AC mains supply and an AC/DC constant current unit of which the output is connected to the LED light source; wherein includes two AC/DC constant current units, a microcontroller, a switch unit, two state detect circuits and an assistant power; the input and output of the two AC/DC constant current unit is alternatively connected to the output of the EMI filter and the LED light source through the switch unit; the inputs of each state detect circuits are separately connected to the output of one of the AC/DC constant current unit, the outputs of each state detect circuit are separately connected to the input of the microcontroller; the output of the microcontroller is connected to the input of the switch unit; the input of the assistant power is connected to the output of the EMI filter, the output of the assistant power is connected to the microcontroller.