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According to development of various 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...
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...
It is well known that non-linear rectifiers generate various harmonics in the power system. To improve those harmonic problems, a lot of original PFC circuits have been proposed so far. Among these, Takahashi, et al, have proposed a PFC scheme using single switching device for single phase boost chopper. For a buck chopper, however, it is difficult to realize the buck chopper in a usual way using...
Supercapacitors, often called EDLCs (Electric Double Layer Capacitors), offer high energy density and long life span, so various applications may be anticipated in the realm of energy storage devices, such as those used in electric vehicles or electric power stabilization in power systems, etc. However, since the voltage limit is low of the devices, it is necessary to connect them in series or parallel...
EDLCs (electric double layer capacitors) offer high energy density and long life span, so various applications may be anticipated in the realm of energy storage devices, such as those used in electric vehicles or electric power stabilisation in power systems, etc. However, since the voltage limit is low of the devices, it is necessary to connect them in series or parallel. In addition, it is required...
EDLCs (Electric Double Layer Capacitors) offer high energy density and long life span, so various applications may be anticipated in the realm of energy storage devices, such as those used in electric vehicles or electric power stabilisation in power systems, etc. However, since the voltage limit is low of the devices, it is necessary to connect them in series or parallel. In addition, it is required...
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