전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 1999년도 전력전자학술대회 논문집
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- Pages.266-269
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- 1999
전압원 및 전류원 구동 공진형 인버터로 구성된 형광등용 전자식 안정기의 역률개선에 적합한 수동 역률 개선 회로에 관한 연구
Passive Power Factor Correction Circuits for Electronic Ballasts using Voltage-Fed and Current-Fed Resonant Inverters
- Chae, Gyun (Department of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST)) ;
- Ryu, Tae-Ha (Department of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST)) ;
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Cho, Gyu-Hyung
(Department of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST))
- 발행 : 1999.07.01
초록
Several power factor correction(PFC) circuits are presented to achieve high PF electronic ballast for both voltage-fed and current-fed electronic ballast. The proposed PFC circuits use valley-fill(VF) type DC-link stages modified from the conventional VF circuit to adopt the charge pumping method for PFC operations during the valley intervals. In voltage-fed ballast, charge pump capacitors are connected with the resonant capacitors. In current-fed type, the charge pump capacitors are connected with the additional secondary-side of the power transformer. The measured PF and THD are higher than 0.99 and 15% for all proposed PFC circuits. The lamp current CF is also acceptable in the proposed circuits. The proposed circuit is suitable for implementing cost-effective electronic ballast.
키워드