A flyback constant frequency ZCS-ZVS quasi-resonant converter

✍ Scribed by P. Dananjayan; V. ShRam; C. Chellamuthu

• Book ID: 104157867
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 566 KB
• Volume: 29
• Category: Article
• ISSN: 0026-2692
• DOI: 10.1016/s0026-2692(97)00110-9

✦ Synopsis

The analysis and simulation of a flyback zero current switching-zero voltage switching quasi-resonant converter operating at a constant switching frequency are discussed. Its output voltage is regulated by controlling the free-wheeling period of the resonant inductor. In addition to better controllability, it possesses the advantages of PWM and frequency-modulated converters. The principle of operation, steady state characteristics, design procedure and simulation of flyback constant frequency zero current switching-zero voltage switching quasi-resonant converter (CF-ZCS-ZVS-QRC) are presented. A prototype of this converter is implemented.