DocumentCode
2659561
Title
Elimination of magnetic saturation due to fast dynamic response in DC-DC converter
Author
Kohama, Teruhiko ; Tokimatsu, Sunao ; Shimamori, Hiroshi
Author_Institution
Dept. of Electr. Eng., Fukuoka Univ., Fukuoka, Japan
fYear
2009
fDate
18-22 Oct. 2009
Firstpage
1
Lastpage
6
Abstract
Method for eliminating magnetic saturation in low-voltage and high-current DC-DC converter with fast dynamic response is described. Core saturation presented here is observed in onboard isolated DC-DC converter due to inherently asymmetrical PWM signal during transient condition. The saturation is not eliminated by using ac-coupling capacitor for transformer. Mechanism of the saturation is analyzed and confirmed by experiments. Method for eliminating magnetic saturation is also presented. Effectiveness of proposed method is confirmed by experiments.
Keywords
DC-DC power convertors; fast dynamic response; magnetic saturation elimination; onboard isolated DC-DC converter; Capacitors; Circuit faults; DC-DC power converters; Magnetic circuits; Magnetic cores; Power supplies; Pulse width modulation; Pulse width modulation converters; Saturation magnetization; Transformer cores;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location
Incheon
Print_ISBN
978-1-4244-2490-0
Electronic_ISBN
978-1-4244-2491-7
Type
conf
DOI
10.1109/INTLEC.2009.5351916
Filename
5351916
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