AC Power Supply Circuits for Energy Harvesting

Author

Wenck, Justin ; Amirtharajah, Rajeevan ; Collier, Jamie ; Siebert, Jeff

fYear

2007

Firstpage

92

Lastpage

93

Abstract

Passive energy harvesting from mechanical vibration has wide application in wearable and embedded sensors to complement or replace batteries. Energy harvesting efficiency can be increased by eliminating AC/DC conversion. A test chip demonstrating self-timing, power-on-reset circuitry, and memory for energy harvesting AC voltages has been designed in 180 nm CMOS and tested. Circuit operation is confirmed for supply frequencies between 60 Hz and 1 kHz with power consumption below 130 muW.

Keywords

CMOS memory circuits; DRAM chips; logic design; power supply circuits; AC power supply circuits; AC-DC conversion; CMOS process; DRAM; circuit operation; embedded sensors; energy harvesting efficiency; frequency 60 Hz to 1 kHz; mechanical vibration; memory design; power consumption; power-on-reset circuitry; size 180 nm; test chip; wearable sensors; Automatic testing; Batteries; CMOS memory circuits; Circuit testing; Frequency; Mechanical sensors; Power supplies; Vibrations; Voltage; Wearable sensors; AC power supply; DRAM; energy harvesting; power-on-reset; self-timed;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 2007 IEEE Symposium on

Conference_Location

Kyoto

Print_ISBN

978-4-900784-05-5

Electronic_ISBN

978-4-900784-05-5

Type

conf

DOI

10.1109/VLSIC.2007.4342779

Filename

4342779