Abstract: A detection target judgment section (12) in a heating apparatus for cooking judges a type of each detection area. The type is selected in three types of detection areas: A direct detection area where only a target food (9) is detected; A boundary detection area where both a part of the target food (9) and a background are detected simultaneously; and a background detection area where only the background is detected. The heating process control section (13) preciously calculates a temperature of each part in the target food (9) based on the temperature in each of the above detection areas calculated by a temperature calculation section (11) in order to control a thawing and heating process for the target food (9).

Abstract: In a magnetron drive apparatus a high frequency voltage converted and outputted by a frequency converter is inputted to a primary winding of a transformer and a high voltage power outputted from a secondary winding of the transformer is rectified and supplied to an anode of the magnetron and a power outputted from a heater winding of the transformer is supplied to a heater of the magnetron. The magnetron drive apparatus comprises a magnetic flux leakage device disposed in a magnetic path formed by the primary and secondary windings of the transformer and increasing a leakage magnetic flux in the magnetic path; and a device for winding the secondary winding and the heater winding therearound in a position opposite the primary winding with the magnetic flux leakage device arranged therebetween.