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To improve the efficiency and to reduce the volume of dc-dc converters and their filters, interleaved converters are used. For further reduction of the inductor volume, coupled inductors can be applied. In these multiphase converters, appropriate active current sharing is necessary due to the inherent current unbalance caused by the parameter deviations of the components and the duty cycles of the...
To obtain highest efficiency in electric vehicles and to increase the lifetime of the traction battery, a battery buffer system which consists of a DC/DC converter and electric double layer capacitors can be implemented. To achieve low volume and high efficiency, multiphase interleaved converters are used for the DC/DC converters. The inductors represent a main part concerning the converter volume...
To obtain highest efficiency and to extend the lifetime of the battery in electric vehicles, a battery buffer system can be implemented. It consists of double layer capacitors and a dc-dc converter. In case of regenerative braking operation the capacitors have to be able to accept energy, in case of acceleration they have to deliver energy. To ensure availability of the system anytime, the ultracapacitors...
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