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Thermal protection circuits for electronic device cables

  • US 8,498,087 B2
  • Filed: 11/03/2009
  • Issued: 07/30/2013
  • Est. Priority Date: 11/03/2009
  • Status: Active Grant
First Claim
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1. A cable, comprising:

  • at least a pair of conductive lines;

    first and second connectors coupled to respective ends of the lines; and

    thermal protection circuitry that includes;

    a cutoff switch interposed in at least one of the lines;

    a fuse, wherein the thermal protection circuitry is configured to close the switch when the fuse is intact; and

    a thermistor configured to blow the fuse through increased current flow in the fuse when temperature of the thermistor has exceeded a threshold temperature.

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