Induction heating cooker
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United States of America Patent
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Nov 21, 2017
Grant Date -
Aug 27, 2015
app pub date -
Mar 13, 2013
filing date -
Oct 30, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
When an inverter circuit is driven at a predetermined driving frequency, an amount of current change per predetermined period of time of an input current or a coil current is detected, and a heating period from a start of control until the amount of current change becomes a set value or less is measured. Then, the inverter circuit is controlled to reduce high frequency power to be supplied to a heating coil in accordance with a length of the measured heating period.
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