Title :
New continuous-input current charge pump power-factor-correction electronic ballast
Author :
Qian, Jinrong ; Lee, Fred C. ; Yamauchi, Tokushi
Author_Institution :
Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
Continuous-input current charge pump power-factor-correction (CIC-CPPFC) electronic ballasts are proposed in this paper. The CPPFC circuit and unity power factor condition using the charge pump concept are derived and analyzed. The average lamp current control with switching frequency modulation was developed so that low crest factor and constant lamp power operation can be achieved. The developed electronic ballast has continuous input current, so that a small line input filter can be used. The proposed CIC-CPPFC electronic ballast was implemented and tested with two 45 W fluorescent lamps. It is shown that the measured line input current harmonics satisfy IEC 1000-3-2 Class C requirements
Keywords :
DC-AC power convertors; fluorescent lamps; harmonic distortion; invertors; lamp accessories; power conversion harmonics; power factor correction; resonant power convertors; 45 W; IEC 1000-3-2 Class C requirements; average lamp current control; constant lamp power operation; continuous-input current charge pump power-factor-correction electronic ballast; crest factor; fluorescent lamps; line input current harmonics; line input filter; resonant invertors; switching frequency modulation; unity power factor condition; Charge pumps; Circuits; Current control; Electronic ballasts; Electronic equipment testing; Fluorescent lamps; Frequency modulation; Power harmonic filters; Reactive power; Switching frequency;
Journal_Title :
Industry Applications, IEEE Transactions on
