| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem of damaging a cooking material in a pot because of an over-supply of power when cooking is continued after the specific number of pans out of a plurality of pans placed on induction heating coils are removed during cooking. <P>SOLUTION: The electromagnetic induction heating cooker is provided with: a plurality of induction heating coils forming a direct current resonance circuit together with a resonance capacitor; an inverter circuit which supplies a current to the induction heating coils; a power calculating circuit which calculates an input power value of the inverter circuit as well as a power setting circuit which sets an input power value; a power controlling circuit which controls a power calculating signal to become equivalent to a power setting signal; an output current detecting circuit which detects an output current of the inverter circuit; and a manual current setting circuit which sets a current setting signal manually, based on an output current value shown according to a power setting signal when pans are placed on all of the induction heating coils, as well as a current controlling circuit which controls a current to become almost equivalent to a value of the current setting signal when the number of pans is reduced and a value of an output current detecting signal becomes bigger than the value of the current setting signal. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
