Hello Arduino people :grin: I have been looking for a device to switch a ignition coil, a 12V, 2.3k ohm one. Because this is a inductive device, I cannot simply connect it through a mosfet, because the mosfet at some point will get "disturbance". Now I could connect all kinds of diodes, caps, etc. …

Opto-isolator, appropriate use

system May 27, 2012, 11:16am 7

Could this one do the trick ?

Kind regards,
Sean.