Title :
A DC-DC Converter Using a Microtransformer
Author_Institution :
Shinshu University.
Abstract :
Studies of microtransformer-based switching converters are reviewed in this paper. A multilayered planar device consisting of zigzag-shape coils and Co-Zr amorphous magnetic films is used as the converter´s main transformer. A resonant-type microconverter driven at high frequencies (6 MHz) shows excellent characteristics suited to practical applications, including high efficiency (49.5%), high output (0.35 W) and small size (10Ã10Ã0.23 mm).
Keywords :
Circuit faults; Coils; DC-DC power converters; Magnetic circuits; Magnetic films; Magnetic resonance; Magnetic switching; Power supplies; Power transformer insulation; Switching circuits;
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
DOI :
10.1109/TJMJ.1994.4565902