A NEW INDUCTIVE COMPONENT ADAPTED TO HIGH FREQUENCY POWER SUPPLIES

摘要

This paper presents a new high frequency DC-DC power converter. It is regulated at constant frequency by the pulse width modulation (PWM) technic. This converters is derived from the classical PWM phase-shifted converter by adding two impulsive current sources to achieve soft switching operation. These impulsive current sources are obtained by a new technic which consists on saturable inductors. The theoretical analysis and experimental results of a 2kW prototype of the converter operating at 1 Mhz are given.