| 摘要 |
PURPOSE:To decrease an over-shoot of a cooking temperature at an initial rise heating operation, an excessive decrease in cooking temperature caused by a delay in control at a temperature fall and a decrease in temperature during a repetitive cooking by a method wherein a rate of decrease in temperature sensed by a temperature sensor is calculated and means for sensing a rate of decrease in temperature for outputting a signal for changing over the heating means from its low output side to its high output side to a calorie changing-over means is provided. CONSTITUTION:A temperature sensor 2 may detect a temperature at a bottom part of a cooking container and a calorie changing-over means 10 may change over an output of a heating means 4 heating the cooking container into a high output and a low output. A temperature setting unit 14 may set each of an operating temperature acting as a target value of a temperature control and an initial operating temperature acting as a target value of a temperature control when heated at a lower temperature than the operating temperature during an initial starting time. A comparator circuit 16 may compare a sensed temperature with an operating temperature or initial operating temperature, and in case that the sensed temperature is higher than the set value, a low output changing-over signal is outputted to the calorie changing-over means 10. The means 18 for sensing a rate of decreasing temperature may calculate a rate of decreasing temperature of the sensed temperature and in case that the rate of decreasing temperature is more than the desired value, a high output changing- over signal is outputted to the calorie changing-over means 10.
|
