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System and method of extending useful life of power supply

  • US 9,474,027 B2
  • Filed: 11/25/2013
  • Issued: 10/18/2016
  • Est. Priority Date: 11/25/2013
  • Status: Active Grant
First Claim
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1. A method of internally heating a power supply of a portable electronic device in reduced temperatures comprising:

  • positioning an antenna of the portable electronic device proximate to the power supply;

    receiving a temperature signal from a temperature sensor coupled to the power supply, where the temperature signal is a function of a temperature of the power supply;

    determining whether the temperature is within a reduced operating-temperature range, wherein the reduced operating-temperature range is defined as a range of 0 degrees Celsius (°

    C.) to −

    18°

    C.;

    automatically sending a first amount of current through the antenna in response to the temperature being within the reduced operating-temperature range;

    automatically sending a second amount of current through the antenna in response to the temperature being lower that the reduced operating-temperature rangeandterminating the sending of current through the antenna in response to determining that a predetermined level of useful life of the power supply is reached.

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