A Family of Single -Switch ZVS-CV DC-to-DC Converters

Takerou MIZOGUCHI  Tamotsu NINOMIYA  Takashi OHGAI  Masahito SHOYAMA  

IEICE TRANSACTIONS on Communications   Vol.E79-B   No.6   pp.849-856
Publication Date: 1996/06/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Power Supply
zero-voltage switching,  clamped voltage,  dc-to-dc converter,  resonant converter,  commutation inductor,  

Full Text: PDF>>
Buy this Article

A family of single-switch ZVS-CV (Zero-voltage switchingclamped voltage) dc-to-dc converters is presented. This class of converter is realized by employing a commutation inductor circuit which is connected in parallel with either the transistor or the freewheeling diode in a conventional PWM converter. The technique described here is simple and output-voltage control is easy. The converters that comprise this family are derived form Buck, Boost, Buck/Boost, Cuk, Sepic and Zeta PWM converters. The steady-state characteristics of these converters such as the voltage conversion ratio, the ZVS conditions, and the input and output current ripples are analyzed. The analysis is confirmed by experiment.