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With a development of devices for high performance, the circuit technologies have been also studied. One of main streams concerns a soft switching technology to mitigate switching stress, leading to the reduction in switching losses or electro-magnetic noise. On the other hand, as a characterized orthodox technology, the existing chopper circuit is used for the electric vehicles, etc. Such technologies...
The trend toward more electric vehicles has demanded the need for high voltage, high efficiency and long life battery systems. A complete battery system consists of the following parts: protection, management and balancing. Of the three parts, balancing is the most important concerning the life of the battery system because without the balancing system, the individual cell voltages will drift apart...
This paper describes a bidirectional DC-DC converter for a small electric vehicle. The DC-DC converter designed and tested is capable of raising the voltage from the battery pack (96 V nominal) to 600 V necessary to feed the variable frequency drive that controls the induction motor. This converter is also capable of working in the opposite direction (600 V to 96 V) in order to capture energy from...
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