A Dimmable Resonant Inverter Electronic Ballast with Unity Power Factor

Abstract

The conventional line-frequency magnetic ballast is heavy and bulky, which is too kept inside the compact fluorescent lamp (CFL). The paper describes about single stage dimmable electronic ballast with very high power factor and its high efficiency. A compact lamp power circuit is designed by using integrating a buck boost power factor corrector with a current-fed resonant inverter. Then the integration process gives a single power-processing unit that minimizes the number of circuit components. In this paper the proposed resonant inverter will reduces the circulating current in the resonant tank. It also allows simple gate drivers to be used so that isolation devices can be eliminated. The design, analysis and simulation were done using MATLAB SIMULINK.
DOI: 10.17762/ijritcc2321-8169.1505117