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Zero power lighting control device and method

  • US 9,510,428 B2
  • Filed: 08/11/2010
  • Issued: 11/29/2016
  • Est. Priority Date: 08/13/2009
  • Status: Active Grant
First Claim
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1. A zero power lighting control system for electrically coupling to a load circuit, the zero power lighting control system comprising:

  • a) a sensor unit for detecting motion and sending control signal to a load controller, wherein the load controller opens the load circuit when there is no motion detected by the sensor unit after a first time delay and the motion sensor unit powers down to draw zero current after a second time delay, such that the motion sensor unit is disabled and unable to detect motion;

    b) a separate switch device for closing the load controller; and

    c) a control circuit for powering the motion sensor unit “

    On”

    when the switch device is activated to close the load controller, such that the sensor unit is reenergized and capable of detecting motion.

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