An efficient thermal energy harvesting and power management for μwatt wearable BioChips

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

doi:10.1109/ISCAS.2016.7539033

An efficient thermal energy harvesting and power management for μwatt wearable BioChips

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

Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

26 Scopus citations

Abstract

This paper presents an efficient thermal energy harvesting IC (EHIC) that supports a battery-less μWatt system-on-chips. The EHIC consists of an inductor-based DC-DC converter that boosts a low input voltage to a suitable output voltage level. Further, a switched capacitor buck converter is utilized to regulate the boost converter output voltage and to support multiple output voltage levels, namely 0.6V, 0.8V and 1V. In low energy mode and to enhance the efficiency, the EHIC is capable of bypassing the switched capacitor so that the load is driven directly from the boost converter. The prototype chip is fabricated in 65nm CMOS and occupies an area of less than 0.46mm2. Measured results confirm an efficiency of 65% at 0.6V output voltage and 42μW. In addition, the end-to-end peak efficiency is 71% at 0.8V output voltage and 182μW.

Original language	British English
Title of host publication	ISCAS 2016 - IEEE International Symposium on Circuits and Systems
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2258-2261
Number of pages	4
ISBN (Electronic)	9781479953400
DOIs	https://doi.org/10.1109/ISCAS.2016.7539033
State	Published - 29 Jul 2016
Event	2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada Duration: 22 May 2016 → 25 May 2016

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2016-July
ISSN (Print)	0271-4310

Conference

Conference	2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
Country/Territory	Canada
City	Montreal
Period	22/05/16 → 25/05/16

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

boost converter
dynamic voltage scaling
Energy harvesting
Internet-of-Things
power management unit
switched-capacitor

Access to Document

10.1109/ISCAS.2016.7539033

OpenUrl availability

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Cite this

Alhawari, M., Kilani, D., Mohammad, B., Saleh, H., & Ismail, M. (2016). An efficient thermal energy harvesting and power management for μwatt wearable BioChips. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems (pp. 2258-2261). Article 7539033 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2016-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2016.7539033

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title = "An efficient thermal energy harvesting and power management for μwatt wearable BioChips",

abstract = "This paper presents an efficient thermal energy harvesting IC (EHIC) that supports a battery-less μWatt system-on-chips. The EHIC consists of an inductor-based DC-DC converter that boosts a low input voltage to a suitable output voltage level. Further, a switched capacitor buck converter is utilized to regulate the boost converter output voltage and to support multiple output voltage levels, namely 0.6V, 0.8V and 1V. In low energy mode and to enhance the efficiency, the EHIC is capable of bypassing the switched capacitor so that the load is driven directly from the boost converter. The prototype chip is fabricated in 65nm CMOS and occupies an area of less than 0.46mm2. Measured results confirm an efficiency of 65\% at 0.6V output voltage and 42μW. In addition, the end-to-end peak efficiency is 71\% at 0.8V output voltage and 182μW.",

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author = "Mohammad Alhawari and Dima Kilani and Baker Mohammad and Hani Saleh and Mohammed Ismail",

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Alhawari, M, Kilani, D, Mohammad, B , Saleh, H & Ismail, M 2016, An efficient thermal energy harvesting and power management for μwatt wearable BioChips. in ISCAS 2016 - IEEE International Symposium on Circuits and Systems., 7539033, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2016-July, Institute of Electrical and Electronics Engineers Inc., pp. 2258-2261, 2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016, Montreal, Canada, 22/05/16. https://doi.org/10.1109/ISCAS.2016.7539033

An efficient thermal energy harvesting and power management for μwatt wearable BioChips. / Alhawari, Mohammad; Kilani, Dima; Mohammad, Baker et al.
ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Institute of Electrical and Electronics Engineers Inc., 2016. p. 2258-2261 7539033 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2016-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Alhawari, Mohammad

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PY - 2016/7/29

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N2 - This paper presents an efficient thermal energy harvesting IC (EHIC) that supports a battery-less μWatt system-on-chips. The EHIC consists of an inductor-based DC-DC converter that boosts a low input voltage to a suitable output voltage level. Further, a switched capacitor buck converter is utilized to regulate the boost converter output voltage and to support multiple output voltage levels, namely 0.6V, 0.8V and 1V. In low energy mode and to enhance the efficiency, the EHIC is capable of bypassing the switched capacitor so that the load is driven directly from the boost converter. The prototype chip is fabricated in 65nm CMOS and occupies an area of less than 0.46mm2. Measured results confirm an efficiency of 65% at 0.6V output voltage and 42μW. In addition, the end-to-end peak efficiency is 71% at 0.8V output voltage and 182μW.

AB - This paper presents an efficient thermal energy harvesting IC (EHIC) that supports a battery-less μWatt system-on-chips. The EHIC consists of an inductor-based DC-DC converter that boosts a low input voltage to a suitable output voltage level. Further, a switched capacitor buck converter is utilized to regulate the boost converter output voltage and to support multiple output voltage levels, namely 0.6V, 0.8V and 1V. In low energy mode and to enhance the efficiency, the EHIC is capable of bypassing the switched capacitor so that the load is driven directly from the boost converter. The prototype chip is fabricated in 65nm CMOS and occupies an area of less than 0.46mm2. Measured results confirm an efficiency of 65% at 0.6V output voltage and 42μW. In addition, the end-to-end peak efficiency is 71% at 0.8V output voltage and 182μW.

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KW - dynamic voltage scaling

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KW - Internet-of-Things

KW - power management unit

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ER -

Alhawari M, Kilani D, Mohammad B , Saleh H, Ismail M. An efficient thermal energy harvesting and power management for μwatt wearable BioChips. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems. Institute of Electrical and Electronics Engineers Inc. 2016. p. 2258-2261. 7539033. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS.2016.7539033

An efficient thermal energy harvesting and power management for μwatt wearable BioChips

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

OpenUrl availability

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