| 摘要 |
PURPOSE:To heat a load judged as inadequate due to a small shape via the selection by a user by providing a switch turning-on/off the output signal of a load detecting device to an oscillation controller. CONSTITUTION:When a load judged as inadequate by a load detecting device 8 is to be heated, a user turns a switch 9 off. Even if the device 8 judges the load as inadequate and outputs the signal, the signal is not inputted to an oscillation controller 7 because the switch is opened, the controller 7 allows the oscillation of a switching element 6, and the element 6 excites a heating coil 4 to heat the inadequate load. The switch 9 is turned on to stop the heating of the inadequate load such as a knife or a fork, the switch 9 can be turned off via the selection by the user to heat the inadequate load having a small shape, safety is secured, and operability can be improved. |
