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JSSC 2014第12期RF & Wireless0.18μm CMOSBoost Converter

A 11 nW Energy-Harvesting System with 544 pW Quiescent Power for Next-Generation

一种用于下一代无线传感器的11nW能量收集系统,静态功耗仅544pW。
0.8-1.1V输出, 56%峰值转换效率, 1.1-6.25nW输入功率
能量收集超低功耗生物电位升压转换器无线传感器
nW级升压转换器提升输入电压至CMOS可用范围
pW级电荷泵电路最小化泄漏电流
超低功耗控制电路实现544pW静态功耗
Abstract
This paper presents a nW power management unit (PMU) for an autonomous wireless sensor that sustains itself by harvesting energy from the end ocochlear potential (EP), the 70–100 mV electrochemical bio-potential inside the mammalian ear. Due to the anatomical constraints inside the inner ear, the total extractable power from the EP is limited close to 1.1–6.25 nW. A nW boost converter is used to increase the input voltage (30–55 mV) to a higher voltage (0.8–1.1 V) usable by CMOS cir- cuits in th