Switched capacitor cell based Dc-dc and Dc-ac converters

This paper introduces a modular converter topology based on switched capacitor cells. Two types of cells are discussed in this paper. The full cell switched capacitor structure, which can be used in dc/ac inversion and the half cell structure that has applications in both dc/dc and dc/ac conversion. There are several merits to this converter topology; it has a modular structure, the capacitor count is minimized, and with dc/ac converter there is good redundancy. When utilized as a dc/dc converter, the required output capacitance is minimized and soft switching can be achieved. The basic analysis, simulation results and experimental results on a 1 kW cell prototype are presented.