Title :
Magnetic saturation due to fast dynamic response of isolated DC-DC converter
Author :
Kohama, Teruhiko ; Mukuno, Yusuke ; Shimamori, Hiroshi
Author_Institution :
Dept. of Electr. Eng., Fukuoka Univ., Fukuoka
Abstract :
Magnetic saturation phenomenon 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 inherent asymmetrical driving of conventional PWM IC in transient condition. The saturation is not eliminated by using capacitor for AC coupling of transformer. Mechanism of the saturation is analyzed and confirmed by experiments.
Keywords :
DC-DC power convertors; power capacitors; power transformers; conventional PWM IC; isolated DC-DC converter; magnetic saturation; Circuit faults; DC-DC power converters; Magnetic cores; Pulse transformers; Pulse width modulation; Saturation magnetization; Space vector pulse width modulation; Transformer cores; Video recording; Voltage control;
Conference_Titel :
Industrial Technology, 2009. ICIT 2009. IEEE International Conference on
Conference_Location :
Gippsland, VIC
Print_ISBN :
978-1-4244-3506-7
Electronic_ISBN :
978-1-4244-3507-4
DOI :
10.1109/ICIT.2009.4939578
