on the attached pic of an ignition coil driver R and C need to be determined so that the inductive kick will be below the maximum safe voltage of about 400V for a IRF740 MOSFET. The frequency wont be fixed at 300hz as in the example. my question is, what would be some good starting values for R and C. how would i go about calculating these? i know it says to experiment, but im looking for a ball park value to start with. Thanks
i actually have 3 ignition coils here are primary specs if you need it:
1) 6.7mH 1.5Ohm
2)5.9mH .8Ohm
3)6.8mH 1.5Ohm
i actually have 3 ignition coils here are primary specs if you need it:
1) 6.7mH 1.5Ohm
2)5.9mH .8Ohm
3)6.8mH 1.5Ohm