A Dual-Output Thermoelectric Energy Harvesting Interface with 86.6% Peak Efficiency at 30 μW and Total Control Power of 160 nW
2016 (English)In: IEEE Journal of Solid-State Circuits, ISSN 0018-9200, E-ISSN 1558-173XArticle in journal (Refereed) Published
A thermoelectric energy harvesting interface based on a single-inductor dual-output (SIDO) boost converter is presented. A system-level design methodology combined with ultra-low power circuit techniques reduce the power consumption and minimize the losses within the converter. Additionally, accurate zero-current switching (ZCS) and zero-voltage switching (ZVS) techniques are employed in the control circuit to ensure high conversion efficiency at μW input power levels. The proposed SIDO boost converter is implemented in a 0.18 μm CMOS process and can operate from input voltages as low as 15 mV. The measurement results show that the converter achieves a peak conversion efficiency of 86.6% at 30 μW input power.
Place, publisher, year, edition, pages
IEEE Solid-State Circuits Society, 2016.
Boost converter, energy harvesting, single-inductor dual-output, zero-current switching, zero-voltage switching, dead time, low-power design
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Electrical Engineering
IdentifiersURN: urn:nbn:se:kth:diva-186514DOI: 10.1109/JSSC.2016.2561959OAI: oai:DiVA.org:kth-186514DiVA: diva2:927521
FunderSwedish Research Council
QC 201605172016-05-122016-05-122016-06-21Bibliographically approved