COMBUSTION CONTROL CIRCUIT

摘要

PURPOSE: A circuit for controlling burning is provided to reduce a loading current in the beginning of ignition by suing a power circuit which converts AC from a battery or a general power source to DC, thereby preventing the rapid reduction of battery utilization. CONSTITUTION: A circuit for controlling burning includes a valve opening circuit(23) for forcibly opening an electronic safety valve(14) by electromagnetic force to reduce a maximum loading current, a maintenance circuit(24) for maintaining the opened state of the electronic safety valve, an ignition circuit(25) for igniting a burner and a frame rod circuit(26) for detecting the firing of the burner with a frame rod and maintaining the electronic safety valve in the opened state when the burner is firing, wherein the valve opening circuit operates for a first time period and simultaneously the maintenance circuit and the ignition circuit operates for a second time period for ignition, and the operation of the frame rod circuit is initiated as the operation of the valve opening circuit is finished, the first time period being set shorter than the second time period.