Title :
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
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;
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
DOI :
10.1109/ISSCC.2009.4977427
