Title :
An improved charge pump power factor correction electronic ballast
Author :
Qian, Jinrong ; Lee, Fred C. ; Yamauchi, Tokushi
Author_Institution :
Philips Res., Philips Electron. North America Corp., Briarcliff Manor, NY, USA
fDate :
11/1/1999 12:00:00 AM
Abstract :
An improved charge pump power factor correction (CPPFC) electronic ballast using the charge pump concept is proposed in this paper. Circuit derivation, principle of operation, and the conditions for achieving unity power factor are discussed. The proposed electronic ballast is implemented and tested with two 40 W fluorescent lamps. It is shown that 84% of overall efficiency and 1.6 of crest factor can be achieved with 200-V line input voltage. The measured line input current harmonics satisfy IEC 1000-3-2 Class C requirements. The lamp power variation range is automatically limited within ±15% for ±10% line input voltage variation without feedback control
Keywords :
electric current measurement; fluorescent lamps; lamp accessories; power convertors; power factor correction; power system harmonics; 200 V; 40 W; 84 percent; IEC 1000-3-2 Class C; charge pump power factor correction; circuit derivation; crest factor; electronic ballast; fluorescent lamps; lamp power variation range; line input current harmonics measurement; line input voltage variation; operation principles; unity power factor; Charge pumps; Circuit testing; Current measurement; Electronic ballasts; Electronic equipment testing; Fluorescent lamps; IEC standards; Power factor correction; Reactive power; Voltage measurement;
Journal_Title :
Power Electronics, IEEE Transactions on
