Title :
An ultra-low-power active AC-DC CMOS converter for sub-1V integrated energy harvesting applications
Author :
Herbawi, Abdalrahman Sayed ; Paul, O. ; Galchev, T.
Author_Institution :
Dept. of Microsyst. Eng., Univ. of Freiburg, Freiburg, Germany
Abstract :
This paper presents the design, fabrication, and testing of an efficient full-wave CMOS (0.35 μm XFAB) active rectifier suitable for integrated energy harvesters, which typically produce output voltages <;1 V and output power levels of tens of μW. It can rectify input AC signals with amplitudes in the range of 0.5-1.2 V with a maximum conversion efficiency of 94% while providing an output current of 30 μA, an output ripple of 40 mV, and voltage efficiency >95%. The overall power consumption of 300-650 nW is accounted for within the stated efficiency. The rectifier can operate with input signals in the range of 5 Hz-10 kHz.
Keywords :
AC-DC power convertors; CMOS integrated circuits; energy harvesting; integrated circuit design; integrated circuit testing; low-power electronics; rectifiers; XFAB suitable; current 30 muA; frequency 5 Hz to 10 kHz; full-wave CMOS active rectifier design; full-wave CMOS active rectifier fabrication; full-wave CMOS active rectifier testing; integrated energy harvesters; power 300 nW to 650 nW; size 0.35 mum; sub-1V integrated energy harvesting applications; ultra-low-power active AC-DC CMOS converter; voltage 0.5 V to 1.2 V; voltage 40 mV; CMOS integrated circuits; Current measurement; Energy harvesting; Generators; Power measurement; Rectifiers; Transistors;
Conference_Titel :
SENSORS, 2013 IEEE
Conference_Location :
Baltimore, MD
DOI :
10.1109/ICSENS.2013.6688610
