Patent ID: 8272376
Filing Date: 2012-09-25
Classification: F23N,F24C

Abstract:
1. A gas cooker control system comprising: an ignition controller comprising a touch button, a resistor, a first comparator, a second comparator and a third comparator, the touch button comprising an end connected to external power source, and the other end connected to first inputs of the first, second and third comparators, the resistor being connected between the inputs of the first, second and third comparators and ground, second inputs of the first, second and third comparators being configured for providing a first reference voltage, a second reference voltage and a third reference voltage respectively, outputs of the first, second and third comparators being connected to an igniter, a gas valve and a system power source, a voltage of the external power source being less than the first reference voltage, the first reference voltage being less than the second reference voltage, the second reference voltage being less than the third reference voltage; a gas valve controller comprising a switch circuit connected to a power source, at least one gas valve circuit connected between the switch circuit and ground, and a protection circuit parallel to the at least one gas valve circuit, the switch circuit being configured for controlling the on or off of the power source and further controlling the at least one gas valve circuit; and a power and ignition controller driving device comprising a power source driving circuit, an ignition driving circuit and a comparison circuit connected between the power source driving circuit and the ignition circuit, the comparison circuit being configured for providing a high level voltage or a low level voltage to control the power source driving circuit and the ignition driving circuit according to an input of delay voltage signal.