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JSSC 2022第6期Power Management0.18µm

A Cascaded Hybrid Switched-Capacitor DCDC Converter Capable of Fast Self Startup

一种具有快速自启动能力的级联混合开关电容DCDC转换器,采用改进纹波注入控制实现高效电压调节和电容平衡。
0.18µm CMOS, 5:1.2V转换, 峰值效率96.9%, 8µs启动时间
混合开关电容转换器电压平衡级联结构快速启动USB供电
改进纹波注入控制(MRIC)实现快速电容平衡
级联结构提高转换比
相位跳过技术优化启动瞬态响应
Abstract
Hybrid switched-capacitor (SC) dc–dc converters show promise in applications that require high conversion ratios and small physical size. However, the problem of flying capacitor voltage imbalance, especially during transients, remains a major challenge that limits the adoption of such converters. This article presents a highly integrated hybrid switched-capacitor (SC) converter for universal serial bus (USB) powered applica- tions, featuring fast balancing dynamics. The topology consists of two