Power management with energy harvesting from a headphone jack

Cheng Han Hsieh, Chung Yen Du, Shuenn Yuh Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents a high-efficiency rectifier and low-dropout regulator (LDO) for a body area network. The rectifier receives signal for energy harvesting, and the LDO is employed to generate stable supply voltage. The rectifier uses bootstrapped capacitors and adaptive voltage controller to reduce threshold voltage and to improve further the power conversion efficiency (PCE). The LDO combines voltage buffer, pole-zero tracking, and pseudo resistor technologies to achieve low quiescent current and precise output voltage. This chip has been fabricated by using the TSMC 0.18 μm 1P6M CMOS technology. The core area is 0.1 mm2. Circuit-level simulation reveals that the PCE of the proposed rectifier is 90.7% when the input peak-to-peak voltage is 2.3 V, the output load is 2 kΩ, and the quiescent current of LDO is 15.27 μA.

Original languageEnglish
Title of host publication2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1989-1992
Number of pages4
ISBN (Print)9781479934324
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 - Melbourne, VIC, Australia
Duration: 2014 Jun 12014 Jun 5

Publication series

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

Other

Other2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
CountryAustralia
CityMelbourne, VIC
Period14-06-0114-06-05

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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