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Paper Abstract and Keywords
Presentation 2004-09-10 16:05
A Novel Self-Excited ZVS Half-Bridge Converter with a Synchronous Half-Wave Rectifier
Tatsuya Hosotani (Murata Manufacturing Co.), Kazurou Harada, Yoshiyuki Ishihara, Toshiyuki Todaka (Doshisha Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) A novel self-excited ZVS half-bridge converter with a synchronous half-wave rectifier is presented. In this converter a secondary rectifier is composed of a single MOSFET. Multi-on-time control system stabilizes output voltage and independently controls each on-time of FETs to achieve the ZVS operation of all FETs. The rectified current waveform is shaped like a half sinusoidal wave and ZCS operation of the rectifier is performed to reduce conduction loss during deadtime period. We analyze a state equation and the ZVS/ZCS conditions of the rectifying switch. We show the proposed converter can reduce loss in rectifier as compared with the flyback converter with synchronous rectifier prepared the deadtime. In the experiment this converter achieves high efficiency of 95.6% at 15.5V/6A output and efficiency of 93.4% at 15.5V/12A output.
Keyword (in Japanese) (See Japanese page) 
(in English) Synchronous Rectifier / Self-Excitation / Zero-Voltage-Switching / Zero-Current-Switching / Half-Bridge Converter / / /  
Reference Info. IEICE Tech. Rep., vol. 104, no. 286, EE2004-34, pp. 29-34, Sept. 2004.
Paper # EE2004-34 
Date of Issue 2004-09-03 (EE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee EE  
Conference Date 2004-09-10 - 2004-09-10 
Place (in Japanese) (See Japanese page) 
Place (in English) kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2004-09-EE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Novel Self-Excited ZVS Half-Bridge Converter with a Synchronous Half-Wave Rectifier 
Sub Title (in English)  
Keyword(1) Synchronous Rectifier  
Keyword(2) Self-Excitation  
Keyword(3) Zero-Voltage-Switching  
Keyword(4) Zero-Current-Switching  
Keyword(5) Half-Bridge Converter  
1st Author's Name Tatsuya Hosotani  
1st Author's Affiliation Murata Manufacturing Co., Ltd. (Murata Manufacturing Co.)
2nd Author's Name Kazurou Harada  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Yoshiyuki Ishihara  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
4th Author's Name Toshiyuki Todaka  
4th Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2004-09-10 16:05:00 
Presentation Time 30 minutes 
Registration for EE 
Paper # EE2004-34 
Volume (vol) vol.104 
Number (no) no.286 
Page pp.29-34 
Date of Issue 2004-09-03 (EE) 

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