Series Capacitor Dual-output DC/DC Converter and Power Inverter with Reduced Switching Voltage and Stress on Switching Devices

This paper presents series capacitor dual inductor switching power convertor that features dual output capability and reduced V
DD
/2 switching voltage. The dual output capability allows circuit to be configured as DC/DC power converter with two distinct outputs, or a DC/AC power inverter. The output voltage range is limited to V
DD
/2, and it is therefore suitable for applications with high downscale ratio. The structure is based on a series capacitor topology which features reduced V
DD
/2 switching voltage for both channels and also reduced V
DD
/2 maximal ratings of switches and series capacitor. This reduces considerably the active area and dynamic (switching) power losses of the converter. Structure also feautures passive flying capacitor voltage balancing ensured by one reduced auxiliary capacitor.