POWER CONTROL FOR HAIR IRON HAVING CERAMIC HEATERS
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United States of America Patent
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Issued Date -
Apr 6, 2023
app pub date -
Oct 6, 2021
filing date -
Oct 6, 2021
priority date (Note) -
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Abstract
A hair iron includes two longitudinally extending arms each having a ceramic heater. Users place hair between the heaters during use. A controller coordinates timing and voltage conditions to heat the heaters to avoid light flicker and power harmonics. Thermistors provide current heater temperatures of the heaters and a controller calculates a desired heating power. The heating power includes application to the heaters of various half-cycles of AC power from an external AC line voltage.
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Family
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