DocumentCode
3166149
Title
Analysis of abnormal phenomena caused by synchronous rectifiers in a paralleled converter system
Author
Kohama, Teruhiko ; Ninomiya, Tamotsu ; Shoyama, Masahito ; Tymerski, Richard
Author_Institution
Dept. of Electr. & Electron., Kyushu Univ., Fukuoka, Japan
fYear
1998
fDate
1998
Firstpage
404
Lastpage
411
Abstract
Problems of synchronous rectification in a parallel-module DC-DC converter system are described. These include excessive power dissipation due to the bidirectional current flow capability of MOSFETs and abnormal oscillation due to the cross coupling of the MOSFETs used as synchronous rectifiers. The abnormal oscillation, which causes excessive voltage stress, is analyzed; the results of which are subsequently confirmed by experiment
Keywords
AC-DC power convertors; DC-DC power convertors; power MOSFET; rectifying circuits; abnormal oscillation; abnormal phenomena analysis; bidirectional current flow capability; cross coupling; parallel-module DC-DC power converter system; paralleled power converter system; power MOSFETs; power dissipation; synchronous rectifier; synchronous rectifiers; voltage stress; Circuits; DC-DC power converters; Diodes; MOSFETs; Multichip modules; Power system reliability; Rectifiers; Stress; Switches; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunications Energy Conference, 1998. INTELEC. Twentieth International
Conference_Location
San Francisco, CA
Print_ISBN
0-7803-5069-3
Type
conf
DOI
10.1109/INTLEC.1998.793558
Filename
793558
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