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Silicon Carbide (SiC) MOSFETs are being increasingly utilized in medium and high power electronics converters (>1 kW) because of the significantly lower switching and conduction losses when compared with conventional power switches such as the Si IGBT. SiC MOSFET based converters operating at high frequency can achieve high efficiency and high power density at the same time. Minimum switching loss...
This paper compares the efficiency of DC/DC Boost converter using SiC fly-wheel diode or synchronous rectifier in different working modes. Analyze the high current spike during turn-on transient of main switch based on simulation. The method to realize soft switch without additional devices is discussed and the problems existing in this method can be solved by the application of the new device effectively.
A performance comparison of an interleaved boost converter (IBC) and the conventional boost converter is presented in this paper. Also this paper investigates the performance of three-phase uncoupled and directly coupled Interleaved Boost Converter (IBC) for renewable energy applications. DC-DC Boost Converters serves many purposes. Low output voltage for renewable energy sources such as Fuel cells,...
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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