A novel control method of Double-Clamp ZVS converter for ultra-high power density power module

Abstract

Ultra-high power density power module presents many design and optimization challenges of power supply. How to effectively interfaces the wide input range, high efficiency, with higher power density is a great challenge for power supply designers. Traditional DC-DC converters usually need considerable space with relatively low operating frequency and transmission efficiency. In this paper, a novel control method based on Double-Clamp ZVS converter is proposed to realize the ultra-high power density for power module. According to simulations, the topology realizes high transmission efficiency (96.33%) in 1MHz with wide input voltage range (200V-420VDC). Moreover, the voltage ratings applied to switches can be decreased obviously, which is very suitable for the design of ultra-high power density power module.