The Multiresonant Converter Steady-State Analysis Based on Dominant Resonant Process
- 11 October 2010
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 26 (5), 1452-1468
- https://doi.org/10.1109/tpel.2010.2083694
Abstract
The steady-state analysis of the multiresonant converter is presented. The multiresonant converter utilizes multielement resonant network that consists of resonant inductor and switch capacitances. The resonant process between resonant inductor and capacitances across rectifiers has been found as dominant resonant process. All key circuit parameters are normalized in terms of the characteristic impedance and resonant frequency given by resonant inductor and capacitances across rectifiers. The effects of the transformer magnetizing and leakage inductances have been analyzed. It is shown that dc output values and resonant current rms value strongly depend on load and switching frequency to resonant frequency ratio. It is shown that the resonant process of the resonant inductor and MOSFET output capacitances have no significant influence on overall dc conversion ratio at heavy loads. The simplified analysis is presented and resonant tank order is reduced. The circuit utilizes four different modes of operation. In each mode of operation, the 2-D state-plane diagram is derived. The dc conversion ratio, normalized rms MOSFET, and rectifier capacitance currents have been calculated. A 2.5-kW prototype has been built and tested.Keywords
This publication has 17 references indexed in Scilit:
- Normalized Analysis and Design of LCC Resonant ConvertersIEEE Transactions on Power Electronics, 2007
- A generalized program for extracting the control characteristics of resonant converters via the state-plane diagramIEEE Transactions on Power Electronics, 1998
- Analysis and design of LCL-type series resonant converterIEEE Transactions on Industrial Electronics, 1994
- Steady-state and dynamic analyses of high-order parallel resonant convertorsIEE Proceedings B Electric Power Applications, 1993
- Zero-voltage-switched multiresonant converter for high-power, pulse-load applicationsIEEE Transactions on Industrial Electronics, 1990
- Analysis and design of a parallel resonant converter including the effect of a high-frequency transformerIEEE Transactions on Industrial Electronics, 1990
- DC analysis of half-bridge zero-voltage-switched multiresonant converterIEEE Transactions on Power Electronics, 1990
- Class-E zero-voltage-switching and zero-current-switching rectifiersIEEE Transactions on Circuits and Systems, 1990
- High-frequency off-line power conversion using zero-voltage-switching quasi-resonant and multiresonant techniquesIEEE Transactions on Power Electronics, 1989
- Optimal topologies of resonant DC/DC convertersIEEE Transactions on Aerospace and Electronic Systems, 1989