Two c‐core type orthogonal‐core using a Fe‐6.5 wt. % Si sheet and its application to power converters

This paper describes a two c‐core type orthogonal‐core made of Fe‐6.5 wt. % Si sheet and its application to power converters. The orthogonal‐core can be used in the high‐frequency region because a Fe‐6.5 wt. % Si sheet has superior soft magnetic properties including high permeability and low core loss. Using the orthogonal‐core, we constructed a parametric oscillation type dc‐ac converter. The dc‐ac converter had voltage regulation, overload protection, noise rejection, and almost sinusoidal output. Good efficiency was obtained in the frequency range from 400 Hz to 1 kHz. Furthermore, we propose a dc‐dc converter for coupling two independent dc power sources. The dc‐dc coupling converter has bilateral power transfer and ease of controlling the transferred power. The basic operation of the dc‐dc coupling converter is described.