TY - GEN
T1 - Modeling and analysis of a rectifier voltage stress mechanism in PSFB converter
AU - Zhu, G. R.
AU - Zhang, D. H.
AU - Chen, W.
AU - Luo, F.
PY - 2012
Y1 - 2012
N2 - This paper proposes a simple but effectual method to alleviate the voltage stress of the rectifier and improves the overall efficiency of the conventional PSFB converter. This method is based on such a factor that the equivalent circuit of the PSFB converter during the voltage oscillation period can be treated as a fifth-order model, and thus, the amplitude of the voltage ringing across the rectifier can be retrain by adjusting the value of the inductor in the primary-side. Moreover with this method, it is even possible to remove the RC snubber completely to improve the efficiency, but the voltage stresses of the rectifier can still be limited in an acceptable level. The analysis and design process of this method are presented in this paper, and with this method, a reduction of 15V voltage stress and an increment of 2% efficiency can be obtained in the experimental 240 W (10 A, 400 V/24 V) prototype.
AB - This paper proposes a simple but effectual method to alleviate the voltage stress of the rectifier and improves the overall efficiency of the conventional PSFB converter. This method is based on such a factor that the equivalent circuit of the PSFB converter during the voltage oscillation period can be treated as a fifth-order model, and thus, the amplitude of the voltage ringing across the rectifier can be retrain by adjusting the value of the inductor in the primary-side. Moreover with this method, it is even possible to remove the RC snubber completely to improve the efficiency, but the voltage stresses of the rectifier can still be limited in an acceptable level. The analysis and design process of this method are presented in this paper, and with this method, a reduction of 15V voltage stress and an increment of 2% efficiency can be obtained in the experimental 240 W (10 A, 400 V/24 V) prototype.
UR - https://www.scopus.com/pages/publications/84860111071
U2 - 10.1109/APEC.2012.6165919
DO - 10.1109/APEC.2012.6165919
M3 - Conference contribution
AN - SCOPUS:84860111071
SN - 9781457712159
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 857
EP - 862
BT - APEC 2012 - 27th Annual IEEE Applied Power Electronics Conference and Exposition
T2 - 27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012
Y2 - 5 February 2012 through 9 February 2012
ER -