An efficient power management unit for μwatt thermoelectric generators

Mohammad Alhawari, Dima Kilani, Baker Mohammad, Hani Saleh, Mohammed Ismail

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

2 Scopus citations

Abstract

This paper presents an efficient power management unit (PMU) that supports μWatt load range for TEG-based applications. The PMU consists of an inductor-based DC-DC converter that boosts a small TEG voltage and followed by two switched capacitor-based buck converters which are used to drive a μWatt-SoC. The PMU generates a regulated 1.1V and 0.6V output voltages. Pulse frequency modulation scheme is utilized to regulate the output voltages. SPICE simulation results in 65nm CMOS technology show that the maximum end-to-end efficiency of the PMU is 68% at an output power of 62μWatt. The PMU occupies an area of less than 0.9mm2. The switched capacitor circuit enables the usage of dynamic voltage scaling (DVS) that helps the PMU to operate in ultra-low power modes.

Original languageBritish English
Title of host publication2015 International Conference on Information and Communication Technology Research, ICTRC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages148-151
Number of pages4
ISBN (Electronic)9781479989669
DOIs
StatePublished - 14 Jul 2015
Event1st International Conference on Information and Communication Technology Research, ICTRC 2015 - Abu Dhabi, United Arab Emirates
Duration: 17 May 201519 May 2015

Publication series

Name2015 International Conference on Information and Communication Technology Research, ICTRC 2015

Conference

Conference1st International Conference on Information and Communication Technology Research, ICTRC 2015
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period17/05/1519/05/15

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