Self-powered long-life occupancy sensors and sensor circuits
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United States of America Patent
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Feb 1, 2005
Grant Date -
N/A
app pub date -
May 10, 2002
filing date -
May 15, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Occupancy sensors are provided that do not require an external power source in order to operate. The sensors operate with a low voltage non-rechargeable battery and are fully functional for at least about 15-20 years. The sensors include a relay output capable of switching high or low voltage and high or low current with virtually no generated heat. The sensors require no warm-up period, no minimum load, and no external ground connection. The sensors are always active and are easily installed, having two electrically interchangeable outputs for coupling to, for example, a load and a load power source.
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Family
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Cited Art Landscape
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