Low-threshold CMOS rectifier design for energy harvesting in biomedical sensors

Ali Mohammadi, Jean Michel Redoute, Mehmet R. Yuce

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

The power transfer efficiency of energy harvesting systems is strongly dependent on the power conditioning circuits, especially rectifiers. The voltage drop across rectifier and its leakage current can drastically influence the efficiency. The hybrid energy harvesters impose even more severe constraints on the rectifier. The low Vth transistors and bulk regulation technique are used in this work to mitigated the voltage drop and leakage current, respectively. It has been shown that the bulk regulation stops the current leakage through body of PMOS transistor. A near zero threshold cross connected CMOS rectifier is presented in this work using the standard 180nm UMC technology and experimental analysis are carried out to evaluate the circuit performance.

Original languageEnglish
Article numbere4
JournalBodyNets International Conference on Body Area Networks
Volume16
Issue number6
DOIs
Publication statusPublished - 14 Dec 2015
Event10th EAI International Conference on Body Area Networks, BODYNETS 2015 - Sydney, Australia
Duration: 28 Sep 201530 Sep 2015

Keywords

  • CMOS rectifier
  • Hybrid energy harvesting

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications

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