TY - GEN
T1 - An illuminance sensor integrated with analog digital converter using pulse density modulation
AU - Yamada, Shunsuke
AU - Toshiyoshi, H.
PY - 2017/12/21
Y1 - 2017/12/21
N2 - A ring oscillator and a photovoltaic cell are combined for the first time to develop a battery-less illuminance sensor of high sensitivity. The photovoltaic cell works as a photo detector and a power source for the ring oscillator, which digitalizes the analog output value from the cell into digital value by pulse density modulation. The developed sensor detects luminance from 25 lx up to 25,000 lx, varying its oscillation frequency from 21 kHz to 7.7 MHz, corresponding to a dynamic range of 58 dB.
AB - A ring oscillator and a photovoltaic cell are combined for the first time to develop a battery-less illuminance sensor of high sensitivity. The photovoltaic cell works as a photo detector and a power source for the ring oscillator, which digitalizes the analog output value from the cell into digital value by pulse density modulation. The developed sensor detects luminance from 25 lx up to 25,000 lx, varying its oscillation frequency from 21 kHz to 7.7 MHz, corresponding to a dynamic range of 58 dB.
KW - battery-less sensor
KW - luminance sensor
KW - photovoltaic cell
KW - pulse density modulation
KW - ring oscillator
UR - http://www.scopus.com/inward/record.url?scp=85044254805&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044254805&partnerID=8YFLogxK
U2 - 10.1109/ICSENS.2017.8234408
DO - 10.1109/ICSENS.2017.8234408
M3 - Conference contribution
AN - SCOPUS:85044254805
T3 - Proceedings of IEEE Sensors
SP - 1
EP - 3
BT - IEEE SENSORS 2017 - Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE SENSORS Conference, ICSENS 2017
Y2 - 30 October 2017 through 1 November 2017
ER -
