Design and Implementation of Digital Dimming Electronic Ballast

Department of Electrical Engineering Journal

Design and development of digital dimming electronic ballast

Design and Implementation of
The Digital Dimming Electronic Ballast

Advisor: He Jinman
Graduate Student: Wang Ming Shan
 China 2002 CHUN YUAN CHRISTIAN UNIVERSITY
Abstract

    This  thesis  aims  to  present  the  design  and  practice  of  a  digital electronic ballast for fluorescent lamps. It introduces the characteristics of lamp, DC/DC converter, power factor correction circuit IC  6561, and resonant circuit IC 6574, The electronic ballast is developed by using IC 6561and IC  6574, and other circuits to meet the need for high power factor, long lamp life, high luminous efficiency, and dimming control.
    Also the circuit operation principle, analysis of carefully designed circuit parameters, practical consideration of self-excitation, and dimming control are explained in detail .The test of real design is carried out at last, and the result shows the proposed digital electronic ballast can fulfill the design purposes.