| 摘要 |
PURPOSE:To reduce the consumption of an igniting dry cell by a method wherein the normally open switch which is closed for an operating body of preparation procedure for starting of combustion and self-maintaining circuit which is self- maintained by an igniting operation body are interposed between a power supply and a detecting circuit of oxygen deficiency. CONSTITUTION:When the titled device is provided on the oilstove which is ignited and burned by moving the wick up and down according to the rotation of the rotating knob, the normally open switch (microswitch) 20 which is linked with the operation of the rotating knob is closed at the starting of the stove, then the switch 8 is closed by pushing the ignition button. The igniting heater 9 is actuated by the electric current, simultaneously, the output H is generated by the operational amplifier 23, thus, the self-maintaining circuit is formed. The IC37 for the timer is energized by the output of the operatinal amplifier 33. The output of the operational amplifier 42 is kept at the L level during the predetermined time by the said timer 42. The detecting circuit for oxygen deficiency including the detecting sensor 14 for oxygen deficiency is maintained at the non- operating condition until the combustion is stabilized. |
