Author : A.D. Gajbhare and S.S. Mopari

This Paper deals with the practical implementation of 100W streetlight LED power driving circuit in which the flyback converter topology is used. An LNK420EG controller IC is used to provide constant output current to the LED string which may serves additional functions such as power factor improvement, over current protection, high efficiency. This paper consists of basic functional block diagram of the system, flyback converter topology for continuous conduction mode. This paper also consists of test report which is carried out over the actual hardware of 100W LED power driving circuit. Finally experimental results shows that proposed LED power driving circuit is best suited for the lighting applications.

Keywords: Flyback converter, LNK420EG Link switch, continuous conduction mode, Test report and related graphs

Article published in International Journal of Current Engineering and Technology, Vol.4, No.6 (Dec-2014)