Premagnetized Inductors in Single Phase dc-ac and ac-dc Converters

Abstract

Premagnetization can be used to reduce the size, weight and losses of inductors. Due to the non-symmetric LIcurve of these inductors, they are typically only used in unidirectional dc converters. This paper introduces and discusses three topologies with premagnetized inductors for dc-ac conversion, including measurement results for one topology.