NDLI: Variable-Voltage Class-E Power Amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Acar, M. Annema, A.J. Nauta, B.
Copyright Year	2007
Description	Author affiliation: Univ. of Twente, Enschede (Acar, M.; Annema, A.J.; Nauta, B.)
Abstract	The class-E power amplifier is widely used due to its high efficiency, resulting from switching at zero voltage and zero slope of the switch voltage. In this paper, we extend general analytical solutions for the class-E power amplifier to the ideal single-ended variable-voltage class-E $(class-E_{VV})$ power amplifier that switches at zero slope but not necessarily at zero voltage. The theory is verified by simulations and measurements, and show that the peak switch voltage of $class-E_{VV}$ power amplifier is lower (up to ap 30% ) than in the conventional class-E power amplifier; which can be utilized to obtain e.g. higher output power (up to ap 200% more) with lower power-added efficiency (maximum ap 20% less) from technologies with low-breakdown voltages.
Starting Page	1095
Ending Page	1098
File Size	2318489
Page Count	4
File Format	PDF
ISBN	1424406870
ISSN	0149645X
DOI	10.1109/MWSYM.2007.380284
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power amplifiers Switches Zero voltage switching High power amplifiers Power generation Circuits Inductance Capacitance Equations Power measurement switching amplifiers
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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