A High-Frequency Link Resonant Inverter

Tadahito AOKI  Yousuke NOZAKI  Yutaka KUWATA  Tohru KOYASHIKI  

IEICE TRANSACTIONS on Communications   Vol.E75-B   No.11   pp.1126-1133
Publication Date: 1992/11/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Telecommunications Energy Systems and Switching Power Converters)
inverter,  resonant circuit,  control method,  power electronics,  cycloconverter,  

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This paper describes configuration and operation of a high-frequency link resonant inverter using cycloconverter techniques. In this inverter, a resonant link high-frequency voltage generated in a primary resonant inverter is isolated by a high-frequency transformer, then directly converted into a resonant link low-frequency voltage in a cycloconverter. The switching losses and surge voltage levels can be reduced by making all switches in the primary inverter and the cycloconverter operate at zero voltage. The relationship between characteristic impedance of the resonant circuit and the conversion efficiency, and the distortion factor characteristics of the output voltage waveforms are discussed by comparing of analytical and experimental results.