DocumentCode
3409408
Title
Design of half-bridge piezo-transformer converters in the AC adapter applications
Author
Choi, Sungjin ; Kim, Taeil ; Cho, Bo H.
Author_Institution
Sch. of Electr. Eng., Seoul Nat. Univ.
Volume
1
fYear
2005
fDate
6-10 March 2005
Firstpage
244
Abstract
As a viable alternative to magnetic transformers in the power supply for portable electronics, this paper presents a miniaturized off-line travel adapter or charger for cellular phones using the piezoelectric transformer. Various design considerations in the design of ac PT adapters are investigated before coming up with the proposed pseudo-resonant topology. A prototype hardware design is also presented and verified by simulations and experiments
Keywords
battery chargers; mobile handsets; piezoelectric devices; power convertors; transformers; AC adapter; cellular phones; half-bridge piezo-transformer converter; magnetic transformer; piezoelectric transformer; portable electronics; power supply; pseudo-resonant topology; Capacitance; Cellular phones; Circuit topology; Frequency; Inductors; Power supplies; Resonance; Switches; Transformers; Zero voltage switching;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition, 2005. APEC 2005. Twentieth Annual IEEE
Conference_Location
Austin, TX
Print_ISBN
0-7803-8975-1
Type
conf
DOI
10.1109/APEC.2005.1452927
Filename
1452927
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