DocumentCode
1841715
Title
Push/pull class-DE switching power amplifier
Author
Alipov, A. ; Kozyrev, V.
Author_Institution
Moscow Tech. Univ. of Commun. & Informatics, Russia
Volume
3
fYear
2002
fDate
2-7 June 2002
Firstpage
1635
Abstract
The new class-DE of switching amplifiers is described. It combines the advantages of a push/pull class-D topology with some peculiarities of class-E operating, which allows one to exclude switching power losses. Transistors in a class-DE amplifier operate with underlappings, during which their shunt capacitances are recharged. Therefore it is possible to maintain high drain efficiency on higher frequencies, that is the operating frequency may be two to three times as large as in a push/pull class-D amplifier.
Keywords
HF amplifiers; capacitance; differential amplifiers; power amplifiers; HF amplifiers; class-D topology; class-E operating; drain efficiency; operating frequency; push/pull class-DE amplifier; shunt capacitances; switching power amplifier; underlappings; Capacitance; Communication switching; Frequency; High power amplifiers; Inductance; Power amplifiers; RLC circuits; Resonance; Switching circuits; Zero voltage switching;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location
Seattle, WA, USA
ISSN
0149-645X
Print_ISBN
0-7803-7239-5
Type
conf
DOI
10.1109/MWSYM.2002.1012171
Filename
1012171
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