Normalized Benchmarking of Hybrid Switched-Capacitor DC-DC Converters

Abstract

Hybrid switched-capacitor converters (HSCC) offer great potential for high efficiency and power density compared to purely capacitor- or inductor-based converters. However, the recent proliferation of HSCC topologies has made it difficult to choose the best one for a particular application. This paper presents a benchmarking framework that allows for direct comparison of popular HSCC topologies by analyzing various performance metrics such as passive component volume and bandwidth. By comparing all topologies at the same efficiency, same inductor ripple, and same output voltage ripple, this approach generates guidelines for topology selection and optimization, which can aid in wider industrial adoption and exploration of new topologies.