A self-sustaining integrated CMOS regulator for solar and UHF RFID energy harvesting systems

Tsung Heng Tsai, Bo Han Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A self-sustaining regulator harvesting from two energy sources, solar and radio-frequency energy, is designed. A charge pump utilizing charge transfer switch (CTS) with tunable voltages at the bottom of the pumping capacitors is proposed. Through a DC-DC switching converter with a digital pulse-width modulator, the output voltage is regulated at 1V. In the digital DC-DC switching converter, we propose to analyze the error signal by an oversampling analog-to-digital converter (ADC). The system is completely implemented and fully-integrated in a standard 0.18μm CMOS process, and the achieved maximum end-to-end conversion efficiency is about 62%.

Original languageEnglish
Title of host publication2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Pages25-28
Number of pages4
DOIs
StatePublished - 2013
Event2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China
Duration: 19 May 201323 May 2013

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Country/TerritoryChina
CityBeijing
Period19/05/1323/05/13

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