Power conversion efficiency of class-E power amplifier outside nominal operation

Author

Nagashima, Tomoharu ; Wei, Xiuqin ; Sekiya, Hiroo ; Kazimierczuk, Marian K.

Author_Institution

Grad. Sch. of Adv. Integration Sci., Chiba Univ., Chiba, Japan

fYear

2011

fDate

15-18 May 2011

Firstpage

749

Lastpage

752

Abstract

This paper gives analytical expressions for the output power and the power conversion efficiency of the class-E power amplifier outside the class-E ZVS/ZDS switching conditions. The analytical predictions agreed with the experimental results quantitatively, which indicates the validity of the analytical expressions. Moreover, a design example applying the analytical expressions for the power conversion efficiency is given. By using the analytical expressions, it is possible to design the class-E amplifier, which improves the power conversion efficiency compared with that of the class-E amplifier satisfying the class-E ZVS/ZDS conditions.

Keywords

power amplifiers; power conversion; class-E ZVS/ZDS switching conditions; class-E power amplifier; power conversion efficiency; Capacitance; Equations; MOSFET circuits; Power conversion; Power generation; Switches; Zero voltage switching; Class-E power amplifier; nominal operation; output power; power conversion efficiency;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2011 IEEE International Symposium on

Conference_Location

Rio de Janeiro

ISSN

0271-4302

Print_ISBN

978-1-4244-9473-6

Electronic_ISBN

0271-4302

Type

conf

DOI

10.1109/ISCAS.2011.5937674

Filename

5937674