DocumentCode
1565110
Title
Key Issues of Clamping Diodes in DCM Phase-Shift Full-Bridge Converter
Author
Yin, Lanlan ; Chen, Qianhong ; Peng, Bo ; Wang, Jian ; Ruan, Xinbo
Author_Institution
Nanjing Univ. of Aeronaut. & Astronaut., Nanjing
fYear
2007
Firstpage
1721
Lastpage
1725
Abstract
When the phase-shifted full-bridge converter (PSFB converter) with clamping diodes (CD) operating in discontinuous current mode (DCM), clamping diodes are apt to be damaged, especially in high input voltage applications, which deteriorates the reliability of the converter dramatically. The operation principle of the DCM PSFB converter with CD is analyzed in detail. Analysis shows that the clamping diode has different operating modes in DCM compared to CCM. The clamping diodes are turned off with serious reverse recovery. The operation principle is verified by a 1200 W module.
Keywords
power convertors; power semiconductor diodes; clamping diodes; discontinuous current mode; phase-shift full-bridge converter; power 1200 W; Clamps; Current transformers; Diodes; Equivalent circuits; Inductance; Rectifiers; Resonance; Stress; Switching circuits; Voltage; DCM; Phase-shifted full-bridge converter; clamping diode; current transformer;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location
Orlando, FL
ISSN
0275-9306
Print_ISBN
978-1-4244-0654-8
Electronic_ISBN
0275-9306
Type
conf
DOI
10.1109/PESC.2007.4342258
Filename
4342258
Link To Document