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AC light emitting diode and AC LED drive methods and apparatus

  • US 20070273299A1
  • Filed: 02/25/2005
  • Published: 11/29/2007
  • Est. Priority Date: 02/25/2004
  • Status: Active Grant
First Claim
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1. A lighting system comprising:

  • two or more LED circuits each LED circuit having at least two diodes connected to each other in opposing parallel relation, at least one of which such diodes is an LED;

    at least one capacitor being connected to and being part of each opposing parallel LED circuit, the capacitor having only one end connected to the opposing parallel LEDs;

    a driver connected to the one or more LED circuits, the driver providing AC voltage and current to the one or more LED circuits, the driver and the LED circuits forming a driven circuit and the driver and the LED circuits being configured such that LED circuits may be added to or subtracted from the driven circuit;

    (a) without significantly affecting the pre-determined desired output range of light from any individual LED; and

    , (b) without the need to;

    (i) change the value of any discrete component;

    or, (ii) to add or subtract any discrete components, of any of the pre-existing driven circuit components which remain after the change.

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