How can I make a motorcycle CDI (capacitor discharge ignition) using a power MOSFET?

Thread Starter

Noxge B

Joined Feb 28, 2018
Is there any way to make CDI (capacitor discharge ignition) using power mosferts,I`ve searched on google but it only shows using SCR


Joined Jun 22, 2012
You need to have an oscillator to make the HV, and a capacitor to store it, most cdi's use a Thyristor to fire the capacitor across the coil, it's the best method as it turns itself off when the capacitor is discharged ready for the next trigger pulse.