Analysis and Design of A New LED Converter

Traditionally, a capacitor with large value is necessary to reduce the output voltage ripple for DC power supply. Life time of LED converter is always higher than that of the capacitor located in the output of the converter DC power supply. In order to solve this problem, a novel AC LED circuit topology structure is applied, and the structure and the circuit parameters calculation are analyzed theoretically. For the structure, fluctuation demand of the DC power for LED converter is not high and capacitor with small value can be used. This results in high life expectancy for the capacitor. Results of simulation and experiments verify the feasibility and correctness of the circuit topology structure and parameter calculations.