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A Hybrid Bidirectional Converter With Always-Half-Inductor Current Using Adaptive Target Current Tracking for USB-to-2-Cell Applications
提出一种新型混合双向转换器，实现始终半电感电流，提升USB至双电池双向功率传输效率。
180nm CMOS, 4.7µH电感, 峰值效率97.4%（正向模式）和97%（OTG模式）
双向转换器USB供电电池充电高效能自适应控制
▸始终半电感电流（AHI）设计，减少电感电流
▸基于归一化电感电流的自适应目标电流控制器
▸仅使用5V晶体管，避免高压晶体管的高成本和低性能
Abstract
This article presents an always-half-inductor-
current hybrid bidirectional converter (AHI-HBC) for USB-
to-2-cell bidirectional power transfer. The converter achieves
always-half-inductor current (AHI) in both directions compared
to conventional bidirectional converters (CBCs) while using only
5-V transistors. This enables the elimination of high-voltage (HV)
transistors, which have poor ON-resistance ( RON) performance
and increase process costs. In addition, to address the challenge
of varyin