Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2011.07a
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- Pages.147-148
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- 2011
Implementation of Digital Control for Critical Conduction Mode Power Factor Correction Rectifier
- Shin, Jong-Won (School of Electrical Engineering and Computer Science, Seoul National University) ;
- Baek, Jong-Bok (School of Electrical Engineering and Computer Science, Seoul National University) ;
- Cho, Bo-Hyung (School of Electrical Engineering and Computer Science, Seoul National University)
- Published : 2011.07.05
Abstract
In this paper, implementation of digital control for critical conduction mode power factor correction (PFC) rectifier is presented. Critical conduction mode is widely used in medium and low power conversion application due to its minimized MOSFET turn-on loss and diode reverse-recovery problem. However, it needs additional zero current detection circuit and maximum frequency limit to properly turn the MOSFET on and avoid the excessive switching loss in light load operation. This paper explains the digital IC implementation and verifies its operation with 200-W prototype PFC rectifier.
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