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The paper describes a study aiming at reaching a very high 99% efficiency in DC-DC chopper for electric vehicle (EV) application by improvements of conventional SAZZ topology. Optimisation of the operating frequency and the use multiple parallel SiC diodes were the main improvements of SAZZ chopper that were studied. These led to obtaining the efficiency of 98.96% in an 8 kW experimental setup. New,...
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