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Circuits, systems and methods for integrating sensing and heating functions

  • US 9,664,178 B2
  • Filed: 09/10/2013
  • Issued: 05/30/2017
  • Est. Priority Date: 09/11/2012
  • Status: Expired due to Fees
First Claim
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1. A sensing and heating system comprising:

  • a first element and a second element that form a capacitor;

    a switch configured to selectively connect the first and the second elements together; and

    circuitry coupled to the first and second elements and configured to;

    control the switch to disconnect the first element from the second element to receive a signal from at least one of the first or second elements related to a capacitance of the capacitor formed by the first and the second elements,analyze the signal to detect a condition, andcontrol the switch to connect the first element to the second element together to activate the first and the second elements to provide heat if the signal is indicative of the condition.

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