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Incandescent light bulb life extending apparatus

  • US 20050248292A1
  • Filed: 05/04/2004
  • Published: 11/10/2005
  • Est. Priority Date: 05/04/2004
  • Status: Active Grant
First Claim
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1. An incandescent light bulb life extending apparatus, comprising:

  • a fixed phase control circuit for connection between standard 120V AC power source and an existing incandescent lighting circuit, said fixed phase control circuit including a low pass filter coupled to said 120V AC power source, a triac coupled to said lighting circuit, and a diac coupled between said low pass filter and triac for gating said triac, said fixed phase control circuit operating to wave shape the A.C. power from said source as applied to said lighting circuit at a specific phase that does not change.

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