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JSSC 2022第6期Power Management0.13µmBoost ConverterNeural Network Accelerator

A High-Efficiency Dual-Polarity Thermoelectric Energy-Harvesting Interface Circui

一种基于单电感升压/降压-升压混合转换器的自动极性热电能量收集接口电路。
0.13-µm CMOS, 1.2V输出, 峰值端到端效率90%
热电能量收集自动极性单电感转换器最大功率点跟踪数字零电流检测
自动极性配置的升压/降压-升压混合转换器
频率选择和最大功率点跟踪(MPPT)协同效率提升方案
改进的数字零电流检测(ZCD)技术
Abstract
This article presents an auto-polarity thermoelectric energy-harvesting interface circuit based on a single-inductor boost/buck–boost hybrid converter. The power stage is configured automatically as a boost converter for a positive input voltage or a buck–boost converter for a negative input voltage. A collaborative efficiency-improving scheme of frequency selection and maximum power point tracking (MPPT) is implemented for input power ranging from 1 to 800 µW. An improved digital zero-current det