Title :
Inductor-less charge pump PFC electronic ballast
Author :
Zhou, Jinghai ; Tao, Fengfeng ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
This paper presents the analysis and design of an inductor-less charge pump PFC electronic ballast for fluorescent lamps. A piezoelectric transformer is used as the entire resonant tank which greatly reduces the cost and complexity of the system. The operation principle of the ballast was analyzed, including the design considerations required to achieve unity power factor and zero voltage switching. Experimental results show that by using lamp current feedback control, the proposed circuit features low lamp current crest factor and constant lamp power.
Keywords :
electric current control; feedback; fluorescent lamps; lamp accessories; lighting control; piezoelectric devices; power factor correction; switching circuits; transformers; PFC electronic ballast; constant lamp power; fluorescent lamps; inductor-less charge pump; lamp current feedback control; low lamp current crest factor; operation principle; piezoelectric transformer; resonant tank; unity power factor; zero voltage switching; Ceramics; Charge pumps; Costs; Electronic ballasts; Fluorescent lamps; Piezoelectric actuators; Piezoelectric transducers; RLC circuits; Resonance; Switches;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955470
