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VARIABLE FREQUENCY HEATING CONTROLLER

  • US 20100294751A1
  • Filed: 05/22/2009
  • Published: 11/25/2010
  • Est. Priority Date: 05/22/2009
  • Status: Abandoned Application
First Claim
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1. An apparatus comprising:

  • a heating element configured to heat a target element;

    a temperature sensing device configured to be thermally coupled to the heating element or the target element to provide an output proportional to a temperature of the heating element or the target element to which the temperature sensing device is thermally coupled; and

    a controller configured to modulate an amplitude, duration and frequency of individual current pulses of a series of current pulses applied to the heating element, based at least in part on the output of the temperature sensing device.

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