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Aircraft heating system

  • US 9,046,899 B2
  • Filed: 10/26/2012
  • Issued: 06/02/2015
  • Est. Priority Date: 11/01/2011
  • Status: Active Grant
First Claim
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1. A thermostat for an aircraft heating system supplied with DC power from an onboard source, said thermostat comprising:

  • power-supplying circuitry configured to receive, through a source supply line, DC power from an onboard DC power source, the power-supply circuitry configured to divide the source supply line into a high voltage supply line providing heating power and a low voltage supply line providing operational power;

    processing circuitry receiving operational power from the low voltage line and formulating instructions relating to the heating power;

    heating circuitry controlling supply of the heating power from the high voltage line in accordance with the instructions formulated by the processing circuitry; and

    sensing circuitry conveying a sensed temperature to the processing circuitry for input when formulating the instructions relating to heating power;

    wherein the heating circuitry and/or the sensing circuitry also detect faults and report them to the processing circuitry.

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