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Power supply system for a building

  • US 8,441,216 B2
  • Filed: 09/03/2009
  • Issued: 05/14/2013
  • Est. Priority Date: 09/03/2008
  • Status: Expired due to Fees
First Claim
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1. An electrical system, comprisingan electrical device which operates in response to receiving a DC signal;

  • a light switch assembly which includes a light switch operatively coupled to an AC-to-DC converter, wherein the light switch assembly provides the DC signal to the electrical device in response to the light switch being activated and wherein the light switch assembly drives the DC signal to a level below a threshold level in response to the light switch being deactivated; and

    further includingan electrical controller which provides a control signal SControl modulated with the DC signal to the electrical device.

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