Self-Powered Sun Sensor Microsystems
article
An analog sun sensor has been designed based on shade profile proportional to the angle of incidence of incoming light projected onto a 2×2 array of photodiodes. This concept enables an autonomous self-powered optical system with two the main functions (electrical power generation for the amplifier and the optical position measurement) implemented in the photodiodes, by having these operated simultaneously in the photovoltaic and photocurrent mode respectively. The low-power current-to-voltage converter is used to readout the differential photocurrent, while powered from the photodiodes at minimum supply voltage level. Test structures have been designed, fabricated and used for validation of the concept. © 2009.
TNO Identifier
272537
ISSN
18766196
Source
Procedia Chemistry, 1(1), pp. 1363-1366.
Pages
1363-1366
Files
To receive the publication files, please send an e-mail request to TNO Repository.