Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2007.07a
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- Pages.286-288
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- 2007
Off-time control method for high power density AC/DC Adapter
고전력밀도 AC/DC Adapter를 위한 off-time 제어법
- Kang, Shin-Ho (Dankook University) ;
- Jang, Jun-Ho (Dankook University) ;
- Hong, Sung-Soo (Samsung Electro-Mechanics Co., LTI) ;
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Lee, Jun-Young
(Samsung Electro-Mechanics Co., LTI)
- Published : 2007.07.02
Abstract
The proposed method offers an improved control method for high power density AC/DC adapter by using more energy efficient electrical equipments. Power factor corrector (PFC) topology is based on boost topology with boundary conduction mode (BCM). DC/DC topology is based on half-bridge topology with newly introduced off-time control method, which helps to reduce size of the semiconductor and the magnetic devices. Test results with 85W AC/DC adapter (18.5V/4.6A) design shows that the measured efficiency is 90% with power density of
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