A power quality improved isolated bridgeless sepic converter for LED lamp

In recent year high power LED lamps are developed rapidly for variety of application in indoor and outdoor purpose due to the high efficiency and advancement compare to other existing gas filled lamp. But it is necessary to implement and driver circuit for operating LED lamp. In this work, a SEPIC converter is designed as PFC circuit for operating the LED lamp in order to supply constant voltage and current by means of function the converter is discontinuous conduction mode to high power factor, high efficiency, reduce the switching losses. The performance of proposed converter is assessed through MATLAB Simulation and verified the results experimentally.