the same as employed in the above described conventional ignition apparatus of fig5 the ignition apparatus of this embodiment includes in addition to the above mentioned same components additional elements which will be described below in this embodiment one end of a signal generator 1 in the form of an electromagnetic pickup coil is grounded a current absorber 50 absorbs current i 5 from an ignition signal v i of the pickup coil 1 via a resistor r10 in dependence upon the source voltage v s of a power source 5 in the form of a battery the current absorber 50 includes an npn transistor 51 having a grounded emitter and a collector connected to a comparator 2 and an npn transistor 52 having a grounded emitter a base connected to the base of the transistor 51 and a collector commonly connected to the bases of the transistors 51 52 and to the battery 5 through a zener diode 53 and a resistor r11 a resistor r12 is connected between the collector of the transistor 52 and the battery 5 in parallel with the zener diode 53 and the resistor r11 a current absorption suppressor 60 suppresses the current i 5 absorbed by the current absorber 50 in dependence upon a rpm voltage a which is output by an integration circuit 10 the current absorption suppressor 60 includes an npn transistor 61 having a grounded emitter and a base connected to the cathode of a diode 11 in the integration circuit 10 a resistor 62 is connected between the emitter of the transistor 61 and ground a group of transistors 63 includes a first pnp transistor 63a having an emitter connected to the battery 5 and a collector coupled to.