一种降低共模电流、输出电压纹波及总电容需求的θ-变换器

In this paper, a single-phase converter consisting of two legs with four switches, called the θ-converter, is proposed. It has a common ac and dc ground, which reduces common mode currents and removes the need for an isolation transformer, and two capacitors: one across the whole dc bus and the other across the output. The dc bus capacitor provides a direct path for the double-frequency ripple cur...