Solid-state lamp with integral occupancy sensor

Author

Cooley, John J. ; Vickery, Dan ; Avestruz, Al-Thaddeus ; Englehart, Amy ; Paris, James ; Leeb, Steven B.

fYear

2010

fDate

21-25 Feb. 2010

Firstpage

2305

Lastpage

2313

Abstract

Previous work demonstrated a retrofit proximity detector for fluorescent lamps using the lamp´s own stray electric fields. This paper extends the retrofit sensor system to a solid-state (LED) lamp. The design and implementation of a suitable driver (Â¿ballastÂ¿) for the LED lamp is presented. Design considerations for the ballast include those relevant to lighting (e.g. color cast and dimming levels) as well as those relevant to sensing of human occupants. Two electro-quasistatic modeling approaches for the lamp sensor are discussed. Experimental data from the LED lamp sensor are presented and compared to one of the proposed quasistatic models.

Keywords

LED lamps; lamp accessories; optical sensors; LED lamp sensor; ballast; electroquasistatic modeling approach; fluorescent lamps; integral occupancy sensor; retrofit proximity detector; retrofit sensor system; solid-state lamp; stray electric fields; Electric variables measurement; Electrodes; Electronic ballasts; Fluorescent lamps; Frequency; LED lamps; Low-frequency noise; Sensor systems; Solid state circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Conference_Location

Palm Springs, CA

ISSN

1048-2334

Print_ISBN

978-1-4244-4782-4

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2010.5433558

Filename

5433558