| 摘要 |
PURPOSE:To improve igniting performance by obtaining an angle advancing characteristic by an angle signal in an expected range of the number of revolution of an engine and bypassing the angle signal through a control circuit corresponding to an operation signal of an ignition time operating circuit based on the angle signal over the expected range of the number of revolution. CONSTITUTION:An output from a magneto-power generating coil 106 is reduced by an armature reaction at a high speed revolution of an engine, but an independent signal coil 10 can compensate the output as its number of windings is smaller than that of the coil 106 and is less influenced. On the other hand, an inverse polarity signal (b) becomes an angle signal to energize a thyrister 7, but nothing but an advancing angle characteristic can be obtained only with said signal. Then, by obtaining the second angle signal from a signal coil 8 and bypassing an ignition signal G for a desirable period of time at high revolution by an ignition timing operating circuit 15, a delay angle characteristic can be obtained. |
