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In this paper a study for very high efficiency targeting 99 % range converter is described. We have proposed a new soft switching boost type chopper based on snubber assisted zero voltage and zero current transition (SAZZ) with output diode fabricated ldquoSiC schottky dioderdquo. The output power of 8 kW with the efficiency of 98.96% was obtained. The loss breakdown evaluation of SiC-SAZZ is discussed.
In this paper, the technical stream on a high efficiency and high frequency chopper for the automotive industry, new energy and energy conservation technology field is surveyed. QRAS and SAZZ topologies aimed for the hybrid electric vehicle (HEV) drive application were proposed. 25 kHz-8 kW QRAS, 100 kHz-8 kW SAZZ choppers and 50 kHz-25 kW bilateral SAZZ-1 chopper were constructed and tested under...
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