Self-powered long-life occupancy sensors and sensor circuits
First Claim
1. A method of coupling a first relay output to a second relay output based on occupancy sensed within a designated area, said method comprising:
- driving a relay driver into a first state in response to said occupancy sensed within a designated area;
coupling said first and said second outputs together in response to said driving; and
powering said driving and said coupling with a non-rechargeable battery providing no more than about 3.6 volts.
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Accused Products
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.
149 Citations
6 Claims
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1. A method of coupling a first relay output to a second relay output based on occupancy sensed within a designated area, said method comprising:
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driving a relay driver into a first state in response to said occupancy sensed within a designated area;
coupling said first and said second outputs together in response to said driving; and
powering said driving and said coupling with a non-rechargeable battery providing no more than about 3.6 volts. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification