I also have this equation from Wikipedia for finding the voltage over time which is less obvious how I'd use it. I know the AL value and I'll have a certain number of turns on the primary coil presumably. So in order to calculate that I found the meaning behind AL here which has it as L = n^2 * AL, where L is the inductance, n is the number of turns and AL is stated as "The relationship between the inductance with a given core and the number of turns on it is called its AL value." I've been told the voltage in the primary inductor (in the magnetic field I think?) will be much higher than 9V. When the switch is turned on the primary coil gains a magnetic field and then when it turns off the primary coil oscillates with the capacitor or is it designed to protect the switch so that a spark doesn't jump across it? I'm confused about that part.Īfter analyzing that I'm wondering something else about the ignition coil. It connects the secondary coil with the primary coil which I noticed a lot of ignition coil circuits do.
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