A Ring-Type SC DC-DC Converter with Series-Connected Capacitors

抄録

A ring-type SC DC-DC converter with series-connected capacitors is proposed in this paper. The series-connected capacitors in a ring-connection enable us to convert an input voltage at short step-up/step-down interval. Hence, the proposed circuit can provide more various types of output-voltages than conventional converters. Concerning the proposed DC-DC converter, SPICE simulations are performed to investigate the characteristics of the circuit. The SPICE simulations show that 1. the proposed circuit can realize shorter step-up/step-down interval than the conventional ring-type power converter and 2. the efficiency is more than 95 % when the output load R_o = 1kΩ.