DocumentCode
2420899
Title
Sensing-less drive of synchronous rectifier for LLC resonant converter
Author
Abe, Seiya ; Zaitsu, Toshiyuki ; Yamamoto, Junichi ; Ueda, Shinji ; Yang, Sihun ; Shoyama, Masahito ; Ninomiya, Tamotsu
Author_Institution
Int. Center for the Study, East Asian Dev. (ICSEAD), Japan
fYear
2012
fDate
Sept. 30 2012-Oct. 4 2012
Firstpage
1
Lastpage
6
Abstract
This paper presents the novel driving technique of synchronous rectifier (SR) for the LLC converter. The unique characteristic of “Vo*D=constant” of LLC converter is utilized to predict optimal duty ratio D, where D is the conduction period of secondary diode. This technique does not need the sensing of SR current neither SR voltage. The technique is confirmed by experimentally.
Keywords
power semiconductor diodes; rectifying circuits; resonant power convertors; LLC resonant converter; SR current sensing; SR voltage; secondary diode conduction period; synchronous rectifier sensingless drive; Impedance; Rectifiers; Resonant frequency; Sensors; Switching frequency; Timing; Zero voltage switching;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunications Energy Conference (INTELEC), 2012 IEEE 34th International
Conference_Location
Scottsdale, AZ
ISSN
2158-5210
Print_ISBN
978-1-4673-0999-8
Electronic_ISBN
2158-5210
Type
conf
DOI
10.1109/INTLEC.2012.6374544
Filename
6374544
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