1. (1) R. W. Erickson: Fundamentals of power Electronics, Kluwer Academic Publishers (1999)
2. High-frequency quasi-resonant converter technologies
3. (4) M. H. Rashid: Power Electronics Handbook, Academic Press (2001)
4. (5) M. Mohan, T. Undeland, and W. Robbins: Power Electronics, Converters, Applications and Design, New York, John Wiley (1995)