Steady-State Analysis of Isolated Class-E ^2 Converter Outside Nominal Operation

This paper presents a steady-state analysis of the isolated class-E 2 converter outside nominal operation. By transforming the isolated class-E 2 converter into the typical topology of the class-E inverter, the switching patterns can be comprehended on the parameter spaces easily. The output power a...

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Bibliographic Details
Published inIEEE transactions on industrial electronics (1982) Vol. 64; no. 4; pp. 3227 - 3238
Main Authors Nagashima, Tomoharu, Xiuqin Wei, Bou, Elisenda, Alarcon, Eduard, Kazimierczuk, Marian K., Sekiya, Hiroo
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Capacitance
circuit parameter variations
Class-E converter
class-E inverter
class-E rectifier
Converters
Coupling coefficients
Couplings
Energy conversion efficiency
Exact solutions
Frequency conversion
Inverters
Load resistance
Mathematical analysis
MOSFET
outside nominal operation
Parameters
Steady state
steady-state analysis
Switches
wireless power transfer (WPT)
Wireless power transmission
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Summary:This paper presents a steady-state analysis of the isolated class-E 2 converter outside nominal operation. By transforming the isolated class-E 2 converter into the typical topology of the class-E inverter, the switching patterns can be comprehended on the parameter spaces easily. The output power and the power-conversion efficiency can be expressed as functions of circuit parameters such as coupling coefficient of the transformer, load resistance, and operating frequency. The class-E 2 wireless power transfer (WPT) system was designed and implemented in this paper for verifying the analytical expressions. The analytical predictions of system performance against coupling-coefficient and load-resistance variations agreed with PSpice simulation and experimental results quantitatively, which showed the validity of the analytical expressions. Comparisons between the class-E 2 and classD-E WPT systems are shown along with their discussions. Additionally, two application examples of the analytical expressions are introduced in this paper, which shows the usefulness of the analytical equations.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2016.2631439