DocumentCode :
1448943
Title :
Capacitive Power Management Circuit for Micropower Thermoelectric Generators With a 1.4 
A Controller
Author :
Doms, Inge ; Merken, Patrick ; Van Hoof, Chris ; Mertens, Robert P.
Author_Institution :
IMEC, Leuven, Belgium
Volume :
44
Issue :
10
fYear :
2009
Firstpage :
2824
Lastpage :
2833
Abstract :
Power autonomy is an important requirement for wireless sensor nodes. Thermoelectric generators can produce sufficient power for low power applications. Due to varying temperature, a power management circuit will be required. This paper presents such a power management circuit, realized in the AMIS I3T80 CMOS technology. It contains a Dickson charge pump with a variable number of stages as a DC/DC converter. A controller optimizes the number of stages of the charge pump, consuming 1.4 muA. The maximum efficiency of the charge pump is 82%, leading to a total efficiency that can reach up to 58%.
Keywords :
CMOS integrated circuits; DC-DC power convertors; charge pump circuits; thermoelectric conversion; CMOS technology; DC-DC converter; Dickson charge pump; capacitive power management circuit; current 1.4 muA; micropower thermoelectric generators; power autonomy; power management circuit; thermoelectric generators; wireless sensor nodes; CMOS technology; Charge pumps; Circuits; Energy management; Power generation; Technology management; Temperature sensors; Thermal management; Thermoelectricity; Wireless sensor networks; Charge pump; power management circuit; thermoelectric generator;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/JSSC.2009.2027546
Filename :
5256977
Link To Document :
