Patent ID: 6307343
Filing Date: 2001-10-23
Classification: F24C,H05B

Abstract:
A driving controlling apparatus of a hood motor comprising:hood motor means rotatably driven for ventilating an inner portion of a system;main controlling means for generating control signals for controlling the operation of said hood motor;sub-controlling means for controlling the driving of said hood motor by sensing temperature changes in said system, said sub-controlling means comprising:a printed circuit board power circuit for generating a certain driving voltage;a voltage dividing circuit for dividing said certain driving voltage from said printed circuit board power circuit into a voltage; anda temperature switch for sensing a temperature rise of said inner portion of said system to a certain degree, said temperature switch being switched on/off for applying said voltage signal divided by said voltage dividing circuit into said driving circuit means driving circuit means for controlling the driving of said hood motor in accordance with said control signals of said main controlling means and said driving controlling of said sub-controlling means, said driving circuit means comprising:a switching regulator for outputting driving pulse signals of a certain frequency by receiving pulse signals from a first transistor of said controlling means; anda second transistor driven by said driving pulse signals generated from said switching regulator for controlling the application of direct current power to said hood motor from a direct current power source, wherein said voltage signal which is divided by said voltage dividing circuit through said temperature switch is applied to said switching regulator.