DocumentCode
3679850
Title
High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems
Author
Andrew Hopkins;Neville McNeill;Philip Anthony;Phil Mellor
Author_Institution
Department of Electrical and Electronic Engineering, University of Bristol, Bristol, England
fYear
2015
Firstpage
4632
Lastpage
4639
Abstract
This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses. This is achieved using a snubber inductor and by arranging the gate signal underlap delays in order to control charging current caused by the devices´ highly non-linear output capacitance and to deactivate the intrinsic body drain diode respectively. The result is a 5-kW power converter with an estimated efficiency exceeding 99% in the power semiconductor stage and requiring no forced cooling.
Keywords
"MOSFET","Inductors","Switches","Snubbers","Quality of service","Logic gates","Delays"
Publisher
ieee
Conference_Titel
Energy Conversion Congress and Exposition (ECCE), 2015 IEEE
ISSN
2329-3721
Electronic_ISBN
2329-3748
Type
conf
DOI
10.1109/ECCE.2015.7310315
Filename
7310315
Link To Document