Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Passive Power Factor Correction Circuits for Electronic Ballasts using Voltage-Fed and Current-Fed Resonant Inverters

전압원 및 전류원 구동 공진형 인버터로 구성된 형광등용 전자식 안정기의 역률개선에 적합한 수동 역률 개선 회로에 관한 연구

  • 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)) ;
  • Cho, Gyu-Hyung (Department of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST))
  • 채균 (한국과학기술원 전기 및 전자공학과) ;
  • 류태하 (한국과학기술원 전기 및 전자공학과) ;
  • 조규형 (한국과학기술원 전기 및 전자공학과)
  • Published : 1999.07.01
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Abstract

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.

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