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High-frequency quasi-resonant and multi-resonant converter technologies

Hochfrequente Quasi-Resonanz- und Multi-Resonanz-Umrichter

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Contents

Resonant-switch topologies operating under the principle of zero-current switching and zero-voltage switching are introduced to minimize switching losses, stresses and noises. Employing the resonant-switch concept, the family of quasi-resonant converters (QRCs) and the family of multiresonant converters (MRCs) are derived from the conventional PWM converters. They are capable of operating in megahertz range, with a significant improvement in performance and power density. Characteristics of these QRCs and MRCs are reviewed and their relative merits and limitations are assessed.

Übersicht

Es werden Schwingkreis-Topologien vorgestellt, die nach dem Prinzip des Nullstromschalters und des Nullspannungsschalters arbeiten und damit Schaltverluste, Beanspruchungen und Rauschen minimieren. Nach diesem Konzept entstehen aus den herkömmlichen PWM-Umrichtern. Familien von Umrichtern mit Quasi-Resonanz und Multi-Resonanz. Sie können im Megahertz-Bereich arbeiten und weisen deutliche Verbesserungen des Betriebsverhaltens und der Leistungsdichte auf. Die Charakteristika solcher Schaltungen werden untersucht und ihre jeweiligen Vorzüge und Grenzen betrachtet.

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Based on a contribution to the 3rd European Conference on Power Electronics and Applications, Aachen 1989

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Lee, F.C., Tabisz, W.A. & Jovanović, M.M. High-frequency quasi-resonant and multi-resonant converter technologies. Archiv f. Elektrotechnik 74, 107–116 (1990). https://doi.org/10.1007/BF01476820

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