Off-Nominal Operation of Class-E Amplifier at Any Duty Ratio

Author

Suetsugu, Tadashi ; Kazimierczuk, Marian K.

Author_Institution

Fukuoka Univ., Fukuoka

Volume

54

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1389

Lastpage

1397

Abstract

Design equations for satisfying the suboptimum operating condition, i.e., only the zero-voltage switching (ZVS) condition, of a class-E amplifier with a linear shunt capacitance at any duty ratio are derived. By exploiting the suboptimum class-E operation, various amplifier parameters such as operating frequency, output power, load resistance, and component values can vary, while the ZVS operation and high efficiency can be achieved. An example of a design procedure of the class-E amplifier is given. The theoretical results were verified with PSpice simulation and an experiment.

Keywords

SPICE; amplifiers; zero voltage switching; PSpice simulation; class-E amplifier; design equations; linear shunt capacitance; off-nominal operation; zero-voltage switching; Capacitance; Equations; Frequency; High power amplifiers; Operational amplifiers; Power amplifiers; Radio transmitters; Radiofrequency amplifiers; Switches; Zero voltage switching; Any duty ratio; class-E amplifier; high efficiency; linear shunt capacitance; suboptimum operation; zero-voltage switching (ZVS);

fLanguage

English

Journal_Title

Circuits and Systems I: Regular Papers, IEEE Transactions on

Publisher

ieee

ISSN

1549-8328

Type

jour

DOI

10.1109/TCSI.2007.895368

Filename

4232599