SOI circuit technology for batteryless mobile system with green energy sources

Author

Hama, N. ; Yajima, A. ; Yoshida, Y. ; Utsunomiya, F. ; Kodate, J. ; Tsukahara, T. ; Douseki, T.

Author_Institution

Commun. Device R&D Dept., Seiko Epson Corp., Nagano, Japan

fYear

2002

fDate

13-15 June 2002

Firstpage

280

Lastpage

283

Abstract

Energy-extracted circuit technology for green energy sources and ultralow-power SOI circuit technology with 1 mW level power dissipation provide self-powered operation of mobile equipment. A variable-stage switched-capacitor-type DC-DC converter scheme makes it possible to supply a constant voltage to LSIs for green energy sources. A 1-V 300 MHz-band voltage-controlled SAW oscillator circuit and a 0.5-V CPU fabricated with 0.35-/spl mu/m FD-SOI process are described. We verify the effectiveness of these circuits at self-powered wireless mobile system.

Keywords

DC-DC power convertors; VLSI; low-power electronics; power integrated circuits; silicon-on-insulator; surface acoustic wave oscillators; switched capacitor networks; voltage-controlled oscillators; 0.35 micron; 0.5 V; 1 V; 1 mW; 300 MHz; DC-DC converter scheme; FD-SOI process; SOI circuit technology; batteryless mobile system; energy-extracted circuit technology; green energy sources; self-powered operation; self-powered wireless mobile system; variable-stage switched-capacitor type converter; voltage-controlled SAW oscillator circuit; DC-DC power converters; Power dissipation; Power generation; Power supplies; Solar power generation; Switched capacitor circuits; Switches; Switching circuits; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits Digest of Technical Papers, 2002. Symposium on

Conference_Location

Honolulu, HI, USA

Print_ISBN

0-7803-7310-3

Type

conf

DOI

10.1109/VLSIC.2002.1015105

Filename

1015105