TY - JOUR
T1 - Capacitive power management circuit for micropower thermoelectric generators with a 1.4 μ A controller
AU - Doms, Inge
AU - Merken, Patrick
AU - Van Hoof, Chris
AU - Mertens, Robert P.
PY - 2009/10
Y1 - 2009/10
N2 - 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 1.4μA. The maximum efficiency of the charge pump is 82%, leading to a total efficiency that can reach up to 58%.
AB - 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 1.4μA. The maximum efficiency of the charge pump is 82%, leading to a total efficiency that can reach up to 58%.
KW - Charge pump
KW - Power management circuit
KW - Thermoelectric generator
UR - http://www.scopus.com/inward/record.url?scp=70350596355&partnerID=8YFLogxK
U2 - 10.1109/JSSC.2009.2027546
DO - 10.1109/JSSC.2009.2027546
M3 - Article
AN - SCOPUS:70350596355
SN - 0018-9200
VL - 44
SP - 2824
EP - 2833
JO - IEEE Journal of Solid-State Circuits
JF - IEEE Journal of Solid-State Circuits
IS - 10
M1 - 25
ER -