Abstract: A cooking device having a drawer type automatic door in which delicate control is carried out when the door is opened and closed, whereby influence exerted on an object to be cooked by a shock produced at the time of door opening and closing can be reduced or eliminated. When a before-stop position (full opening detection switch Pso at the time of full opening, intermediate switch Psi at the time of full closing) provided before the stop position of the door is detected, the travel speed of a drawer body is controlled. A speed control is configured to reduce the speed of the drawer body in response to the arrival of the drawer body at a before-stop position and increase the closing speed of the drawer body in response to the arrival of the drawer body at a latch riding position.

Abstract: There is provided a cooking device having a drawer type automatic door in which delicate control is carried out when the door is opened and closed, whereby an influence (falling, overflowing, or the like) exerted on an object to be cooked such as a food by a shock produced at the time of door opening and closing can be reduced or eliminated. When a before-stop position (full opening detection switch Pso at the time of full opening, intermediate switch Psi at the time of full closing) provided before the stop position of the door is detected by specific position detecting means, speed control means controls driving means to reduce the travel speed of a drawer body. For the door opening and closing at the time of start and finish of cooking, a position at which the drawer body is to be stopped automatically (fully opened position Po, fully closed position Pc) is recognized, and the opening/closing speed leading to the stopping is controlled.

Abstract: A switching circuit comprises a first transistor, a second transistor operated to be turn on and off by changing a voltage applied to its gate, and a switching element connected between the first transistor and the second transistor. The switching element is grounded via a first resistor and is connected via a second resistor to a power source for supplying a voltage which is obtained by adding a voltage higher than an estimated noise voltage and a threshold voltage of the second transistor.