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Printed circuit for five LEDs in series

  • US 8,246,201 B2
  • Filed: 01/16/2006
  • Issued: 08/21/2012
  • Est. Priority Date: 01/17/2005
  • Status: Active Grant
First Claim
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1. A circuit comprising:

  • a substrate acting as an insulator;

    a first power node having a first polarity;

    a second power node having a second polarity;

    a first conductive etched area on the substrate;

    a second conductive etched area on the substrate;

    a third conductive etched area on the substrate;

    a fourth conductive etched area on the substrate, each of the first, second, third and fourth conductive etched areas being non-contiguous with the other conductive etched areas;

    a first light emitting diode, including an anode connected to the second power node and a cathode connected to the first conductive area;

    a second light emitting diode, including an anode connected to the first conductive area and a cathode connected to the second conductive area;

    a third light emitting diode, including an anode connected to the second conductive area and a cathode connected to the third conductive area;

    a fourth light emitting diode, including an anode connected to the third conductive area and cathode connected to the fourth conductive area; and

    a fifth light emitting diode, including an anode connected to the fourth conductive area and a cathode connected to the first power node,wherein the first power node includes an exterior boundary zone C and the second power node includes an exterior boundary zone A, and the exterior boundary zone A comprises a connection to the second polarity by a contact spring, and the second polarity A is transferred from the exterior boundary zone A towards a central zone B by a mechanical security thermal switch.

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