Hello Everyone, I found this forum on my search for a problem, Here it is,
I am looking to build a ignition coil tester for the purpose of testing car ignition coils under load while on the bench, Most newer cars use a single coil for each cylinder and they can break down under higher RPM's and that makes it hard to duplicate while the car is in the service bay.
What I was hoping to do and keep the project simple is use a GM ignition module for the switching voltage, these already have the necessary components built into them to power a car ignition coil and simply need 12 volts DC for power and to be mounted on some metal for a heat sink.
The part I need help with is the trigger signal that causes the module to switch, On the cars it is simply a pickup coil of wire that magnets pass by to create the 0-5 volt a\c signal and cause the module to switch power to the coil.
I would like to have this circuit variable to test the coils at various rpm ranges so I can visually watch the spark from the ignition coil jump across a large gap and load the coil, bad ones will arc internally in that situation and be visible by sound and noise. Any ideas? Thank You!
I am looking to build a ignition coil tester for the purpose of testing car ignition coils under load while on the bench, Most newer cars use a single coil for each cylinder and they can break down under higher RPM's and that makes it hard to duplicate while the car is in the service bay.
What I was hoping to do and keep the project simple is use a GM ignition module for the switching voltage, these already have the necessary components built into them to power a car ignition coil and simply need 12 volts DC for power and to be mounted on some metal for a heat sink.
The part I need help with is the trigger signal that causes the module to switch, On the cars it is simply a pickup coil of wire that magnets pass by to create the 0-5 volt a\c signal and cause the module to switch power to the coil.
I would like to have this circuit variable to test the coils at various rpm ranges so I can visually watch the spark from the ignition coil jump across a large gap and load the coil, bad ones will arc internally in that situation and be visible by sound and noise. Any ideas? Thank You!