대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 학술대회 논문집 전문대학교육위원
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- Pages.70-74
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- 2003
역률 보정회로(PFC)를 이용한 출력 가변형 정류기 개발에 관한 연구
A Development of Variable Output type Rectifier by PFC
- Lee, Chun-Mo (Chung Cheong College) ;
- Jang, Yong-Joo (S.M Tech.)
- 발행 : 2003.07.06
초록
The buck-boost converter is employed as the variable output PFC power stage. From the loss analysis, this topology has a high efficiency from light load to heavy load. A modified input current sensing scheme is presented to overcome the problem of the insufficient phase margin for the PFC circuit near the maximum output voltage. The variable output PFC circuit has a good performance in the wide output voltage range, under both the Boost mode when the output voltage is high and the Buck+Boost mode when the output voltage is low.
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