| 摘要 |
PURPOSE:To aim at the obviation of a starting failure due to microprocessor trouble, by setting up two-system methods to impress pulser signals to a marine ignitor, and one of which having no microprocessor is so as to be used in times of engine starting and trouble happening. CONSTITUTION:In times of engine starting and trouble happening, if either a magnet switch operation detecting signal 21 or a trouble detecting signal 22 is set motion, a pulser control circuit 19 fitted with a control terinal comes into a state of being turned on by the output of an OR circuit 23. At the same time, since output of the OR circuit 23 is connected to a control terminal-built- in amplifier circuit 17 via an inversion circuit 20, the amplifier circuit 17 comes into a state of being turned off whereby pulser signal 6-9 are transmitted to an ignitor 18 via the pulser control circuit 19. That is to say, both the amplifier circuit 17 and the pulser control circuit 19 are controlled by output of the OR circuit 23 and its inversion output so that both of them will never come into a state of being turned on simultaneously i.e., when one side is ON, the other side turns OFF without fail. |
