A 60 mV Input Voltage, Process Tolerant Start-Up System for Thermoelectric Energy Harvesting

Mohammadjavad Dezyani, Hassan Ghafoorifard, Samad Sheikhaei, Wouter A. Serdijn

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)
8 Downloads (Pure)

Abstract

This paper presents a 60 mV input voltage start-up system for thermoelectric energy harvesting. A new process tolerant inverter cell is proposed, which is functional at supply voltages as low as 60 mV. Using the proposed unit cell, a ring
oscillator has been implemented. The ring oscillator is followed by 40 charge-pump stages, an ultra-low-power level detector, and a boost converter. The energy harvesting system can generate an output voltage of 1 V and delivers a maximum power of 4.5 μW from a 60 mV supply. This system has been implemented in a standard 0.18 μm CMOS technology, uses neither zerothreshold voltage (normally-on) negative-channel metal-oxide semiconductor nor microelectromechanical systems switches and occupies 3.3 mm2.


Original languageEnglish
Pages (from-to)3568-3577
Number of pages10
JournalIEEE Transactions on Circuits and Systems I: Regular Papers
Volume65
Issue number10
DOIs
Publication statusPublished - 2018

Keywords

  • CMOS
  • Energy harvesting
  • low power design
  • low voltage
  • TEG
  • thermoelectric generator

Fingerprint Dive into the research topics of 'A 60 mV Input Voltage, Process Tolerant Start-Up System for Thermoelectric Energy Harvesting'. Together they form a unique fingerprint.

Cite this