Universal power management IC for small-scale energy harvesting with adaptive impedance matching

Author

Kong, Na ; Deyerle, T. Shaver, IV ; Ha, Dong Sam

Author_Institution

Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

3859

Lastpage

3863

Abstract

In this paper, we present a universal power management IC for small-scale energy harvesting with adaptive impedance matching. A non-inverting buck-boost converter is adopted to accommodate a wide input voltage range from different energy sources and varying environmental conditions. The circuit dynamically performs the resistive matching to harvest the maximum power. The circuit is fabricated in 0.18-μm CMOS. Simulation and measurement results of the IC verify the operation of the power stage and the function of controller circuit.

Keywords

CMOS integrated circuits; energy harvesting; impedance matching; power convertors; CMOS; adaptive impedance matching; controller circuit; energy sources; environmental conditions; noninverting buck-boost converter; size 0.18 mum; small-scale energy harvesting; universal power management IC; Capacitors; Current measurement; Energy harvesting; Impedance; Impedance matching; Sensors; Switches; DC-DC converter; energy harvesting; impedance matching; power management;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6064293

Filename

6064293