Elimination of magnetic saturation due to fast dynamic response in DC-DC converter

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 n...

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Hauptverfasser: Kohama, T., Tokimatsu, S., Shimamori, H.
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Tokimatsu, S.
Shimamori, H.
description 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.
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Capacitors
Circuit faults
DC-DC power converters
Magnetic circuits
Magnetic cores
Power supplies
Pulse width modulation
Pulse width modulation converters
Saturation magnetization
Transformer cores
title Elimination of magnetic saturation due to fast dynamic response in DC-DC converter
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