DocumentCode :
656286
Title :
A transformer-less interleaved four-phase current-fed converter with new voltage multiplier topology
Author :
Ching-Tsai Pan ; Chen-Feng Chuang ; Chia-Chi Chu
Author_Institution :
Dept. of Electr. Eng., Nat. TsingHua Univ., Hsinchu, Taiwan
fYear :
2013
fDate :
3-6 Nov. 2013
Firstpage :
187
Lastpage :
193
Abstract :
In this paper, a transformer-less interleaved four-phase current-fed converter with high voltage gain and reduced semiconductor voltage stress is proposed. The proposed topology utilizes input-parallel output-series configuration for providing a much higher voltage gain without adopting an extreme large duty cycle. The proposed converter can not only achieve high step-up voltage gain but also reduce the voltage stress of both active switches and diodes. This will allow one to choose lower voltage rating MOSFETs and diodes to reduce both switching and conduction losses. In addition, due to the charge balance of the blocking capacitor, the converter features automatic uniform current sharing characteristic of the four interleaved phases for voltage boosting mode without adding extra circuitry or complex control methods. The operation principle and steady analysis of the proposed converter are discussed. Finally, some simulation and experimental results are also presented to demonstrate the effectiveness of the proposed converter.
Keywords :
MOSFET; power convertors; MOSFET; automatic uniform current sharing characteristic; blocking capacitor; conduction losses; semiconductor voltage stress; switching losses; transformer-less interleaved four-phase current-fed converter; voltage boosting mode; voltage multiplier topology; Inductors; Integrated circuits; Stress; automatic uniform current sharing; high step-up converter; low voltage stress; transformer-less;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Future Energy Electronics Conference (IFEEC), 2013 1st International
Conference_Location :
Tainan
Print_ISBN :
978-1-4799-0071-8
Type :
conf
DOI :
10.1109/IFEEC.2013.6687501
Filename :
6687501
Link To Document :
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