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In all the PWM DC to DC and DC to AC converter topologies, the controllable switches are operated in switch mode where they are required to turn ON and OFF the entire load current during each switching. Here the switches are subjected to high stress and high switching losses that increases linearly with the switching frequency of the PWM. Another major significant drawback of switch mode operation...
Multilevel DC-DC converters making use of high-frequency transformers are suitable for integration in solid-state solutions for applications in electric power distribution systems. This paper presents a simplified switching scheme for three-level full-bridge DC-DC converters that enables zero-voltage and zero-current switching of all the main power devices. It describes the main operational modes...
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