| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-frequency heating cooker capable of accurately determining a load state taking a variation factor per product into consideration.SOLUTION: A control circuit 21 stores, in advance before shipment, an input current reference value detected by an input current detection circuit 24, an input voltage reference value detected by an input voltage detection circuit 25, and an anode current reference value detected by an anode current detection circuit 26 when the maximum input current was flowed into an inverter circuit 6. Then, when a magnetron 14 is actually operated at a shipment destination, a threshold value working as reference to determine a load state is set on the basis of the anode current reference value different per product. Because this threshold value is set considering the inverter circuit 6 and the magnetron 14 that vary per product, if the anode current detection value detected by the anode current detection circuit 26 when the magnetron 14 is operated is compared with the threshold value, the load state can be accurately determined taking a variation factor per product into consideration. |
