Title :
Off-Nominal Operation of Class-E Amplifier at Any Duty Ratio
Author :
Suetsugu, Tadashi ; Kazimierczuk, Marian K.
Author_Institution :
Fukuoka Univ., Fukuoka
fDate :
6/1/2007 12:00:00 AM
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);
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2007.895368
