A novel voltage-boosting converter with leakage inductance energy recycling

In this paper a novel simple high step-up converter using a coupled inductor and a charge pump capacitor is presented. Compared with the traditional boost converter and other converters with simple structures, the proposed converter can achieve higher voltage gain. The leakage inductance energy of the coupled inductor can be recycled without any clamp circuit. Moreover, the active switch is not floating; thus, no isolated driver is required. Finally, the operating principles and the analysis of the proposed converter and an experimental prototype are given to provide the effectiveness of the proposed converter.