高功率因数日光灯镇流器电路研究

STUDY ON FLUORESCENT LAMP BALLAST CIRCUIT WITH HIGH POWER FACTOR

开发了一种采用 Ｍ Ｓ Ｃ６００２８ 集成功率因数校正芯片构成的高功率因数日光灯镇流器，整个系统由控制电路、升压电路、逆变电路三部分组成．实验结果表明，该电路波形失真度＜ ５％ ，功率因数ｃｏｓφ＝ ０．９９，可以较好地改善电网运行质量．

The fluorescent lamp ballast circuit used MSC60028 with higher power factor is developed,and the system consists of control circuit,boost circuit and contravariant circuit.The experiment results show that distortion degree of wave pattern is less than 5% and the power factor cos φ =0.99.The electrified wire net working quality is improved.