⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种两级级联混合开关电容DC-DC转换器，实现了96.9%的峰值效率，并能容忍0.6V/μs的输入压摆率，解决了高转换比电源管理中电感体积大和瞬态响应慢的问题。
Efficient high-conversion-ratio power delivery is needed for many portable computing applications which require sub-volt supply rails but operate from batteries or USB power sources. In such applications, the power management unit should have a small volume, area, and height while providing fast transient response. Past work has shown favorable performance of hybrid switched-capacitor (SC) converters to reduce the size of needed inductor(s), which can soft-charge high-density SC networks while supporting efficient voltage regulation [1-5]. However, the hybrid approach has its own challenges including balancing the voltage of the flying capacitor and achieving safe but fast startup. Rapid supply transients, including startup, can cause voltage stress on power switches if flying capacitors are not quickly regulated. Past approaches such as precharge networks [3] or fast balancing control [5] have startup times that are on the order of milliseconds.
Ziyu Xia, Jason Stauth
Dartmouth College, Hanover, NH