Hello,
I made a little circuit to convert a single push button to a switch, just using a 4017 IC, and a
555 IC (monostable) to trigger and give some pulse to the 4017 clock.
It worked fine in my protoboard, but after connecting it to my son's motorcycle (12v), I think something is wrong. It remained on after turning the engine ON.
I saturate a pnp transistor ==> relay.
Maybe I would have to filter the power supply (12v battery + alternator).
Any help with some basic filter?
Using a 78XX would help?
Thank you.
I made a little circuit to convert a single push button to a switch, just using a 4017 IC, and a
555 IC (monostable) to trigger and give some pulse to the 4017 clock.
It worked fine in my protoboard, but after connecting it to my son's motorcycle (12v), I think something is wrong. It remained on after turning the engine ON.
I saturate a pnp transistor ==> relay.
Maybe I would have to filter the power supply (12v battery + alternator).
Any help with some basic filter?
Using a 78XX would help?
Thank you.