Integrated capacitive power-management circuit for thermal harvesters with output power 10 to 1000µW

Author

Doms, I. ; Merken, P. ; Mertens, R. ; Van, C.

Author_Institution

IMEC, Leuven

fYear

2009

Firstpage

300

Abstract

Energy harvesters power energy-autonomous wireless sensor systems by converting ambient environmental energy into electrical energy. Thermoelectric generators (TEG´s) are a suitable compact power supply for both on-the-body and industrial sensors. Due to changing conditions, the generated power and voltage vary. Therefore a power management circuit (PMC) has to store the generated energy in a rechargeable battery or capacitor. It contains a DC/DC-converter with variable conversion factor and a controller that sets the conversion factor.

Keywords

DC-DC power convertors; capacitor storage; energy harvesting; energy management systems; secondary cells; wireless sensor networks; DC-DC-converter; capacitors; energy harvesters; energy-autonomous wireless sensor systems; integrated capacitive power-management circuit; power management circuit; rechargeable battery; thermal harvesters; thermoelectric generators; variable conversion factor; Battery management systems; Circuits; Electrical equipment industry; Electricity supply industry; Power generation; Sensor systems; Thermal sensors; Thermoelectricity; Voltage; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference - Digest of Technical Papers, 2009. ISSCC 2009. IEEE International

Conference_Location

San Francisco, CA

Print_ISBN

978-1-4244-3458-9

Type

conf

DOI

10.1109/ISSCC.2009.4977427

Filename

4977427