Title :
Fully-integrated 86 mV–1V step-up converter for energy harvesting applications
Author :
Bender Machado, Marcio ; Cherem Schneider, Marcio ; Sawan, Mohamad ; Galup-Montoro, Carlos
Author_Institution :
UFSC - Fed. Univ. of Santa Catarina, Florianopolis, Brazil
Abstract :
In this paper, we present a fully-integrated step-up converter for energy-harvesting applications able to operate from supply voltages below 4kT/q ≅ 100 mV. Expressions for the operation of the main blocks of the topology, the enhanced swing ring oscillator and the Dickson charge pump operating at ultra-low-voltages, are derived. A fully-integrated converter design implemented in a 130 nm CMOS technology confirmed the ultra-low-voltage operation of the converter, generating a DC output of 1V at a current consumption of 1 μA from an input voltage of 86 mV.
Keywords :
charge pump circuits; energy harvesting; oscillators; power convertors; CMOS technology; Dickson charge pump; current 1 muA; energy harvesting; fully integrated step-up converter; size 130 nm; swing ring oscillator; voltage 1 V; voltage 86 mV; Charge pumps; Energy harvesting; Inductors; Load modeling; Oscillators; Topology; Transistors; Dickson charge pump; energy harvesting; enhanced swing oscillator; ultra-low-voltage DC-DC converters; ultra-low-voltage circuits; zero-VT MOSFET;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2014 IEEE 12th International
Conference_Location :
Trois-Rivieres, QC
DOI :
10.1109/NEWCAS.2014.6934080
