Temperature controlling device of heating element and method thereof
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United States of America Patent
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Apr 24, 2012
Grant Date -
Jul 16, 2009
app pub date -
Mar 21, 2006
filing date -
Mar 25, 2005
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Abstract
A kind of temperature controlling device of heating element and method thereof detect the actual temperature of heating body of the heating element, and calculate the descending gradient and frequency of temperature based on the detected actual temperature. The norm signal is formed based on the actual temperature, descending gradient and frequency of the temperature to control the switch power as to achieve the split second control for the electric power of the heating element.
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