Steady-State Analysis and Design Methodology for Class-E2 Resonant DC/DC Converters Based on a Normalized State-Space Model

Lucas S. Mendonça; João Pedro S. Cipriani; Thiago C. Naidon; Fábio E. Bisogno

doi:10.18618/REP.2020.2.0002

Authors

Lucas S. Mendonça Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil
João Pedro S. Cipriani Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil
Thiago C. Naidon Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil
Fábio E. Bisogno Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil

DOI:

https://doi.org/10.18618/REP.2020.2.0002

Keywords:

Circuit Analysis, Resonant Power Conversion, State-Space Methods

Abstract

This paper presents a steady-state analysis and design methodology for the Class-E² resonant DC/DC converter. The converter is represented in a normalized state-space model that is independent of specifications and real system components, like as inductors, capacitors and resistors. Analytical waveforms are obtained and can be used to design the converter. The main contribution of the paper is the development of an analysis methodology that does not separate the inverter and rectifier stages and ensures the soft-switching on both switch and diode. A step-by-step design procedure is presented, in which the real system components can be obtained based on design abacus. A comparison among theoretical, simulation and experimental results are performed based on a design example.

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Author Biographies

Lucas S. Mendonça, Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil

is a control and automation engineer (2015) and master in Electrical Engineering (2017) with the Universidade Federal de Santa Maria, Brazil. He is currently a double degree doctorate candidate with the Universidade Federal de Santa Maria and the Brandenburg University of Technology Cottbus-Senftenberg, Germany. His areas of interest are: power electronics and contactless energy transfer systems.

João Pedro S. Cipriani, Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil

received the B.Sc. degree in Electrical Engineering (2019) from the Universidade Federal de Santa Maria, Brazil. He has been with the Electrical and Computational Systems Research and Development Group (GSEC) since 2015, where he is currently working towards his Master Degree. His research interests include smart drivers for lighting, energy harvesting and battery charging devices.

Thiago C. Naidon, Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil

is an electrical engineer (2012) and master in Electrical Engineering (2015) with the Universidade Federal de Santa Maria, Brazil. He was professor at Universidade Tecnológica Federal do Paraná from 2017 to 2019. He is currently a professor at Universidade Federal de Santa Maria at Colégio Técnico Industrial de Santa Maria. His areas of interest are: power electronics and energy harvesting.

Fábio E. Bisogno, Universidade Federal de Santa Maria, Santa Maria (UFSM) – Rio Grande do Sul, Brazil

is an electrical engineer (1999), master (2001) with the Universidade Federal de Santa Maria and Dr.- Ing. in Electrical Engineering (2006) with the Technische Universität Chemnitz, Germany. He is currently a full professor at Universidade Federal de Santa Maria. His areas of interest are: resonant converters and self-oscillating systems.

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