Hi SgtWookie,
Just thought you'd like to know that the 3 phase inverter finally turned the alterantor!
I used some more heavy duty gate drivers capable of delivering 2A to the gate.. left in the 100Ω gate resistor and it worked perfectly.. When I applied 12v to the rotor of the alternator, it stopped dead though... but that turns out to be a too high frequency (450hz)... I experimented and found that 25hz works... I'm not sure if thats the optimal frequency but hey maybe its got something to do with voltage/frequency... but I'll have to go and research that a bit.
Thankyou so much for all of your help... the car headlamp setup was an inspiration... it was invaluable!
Cheers
Shaun
Just thought you'd like to know that the 3 phase inverter finally turned the alterantor!
I used some more heavy duty gate drivers capable of delivering 2A to the gate.. left in the 100Ω gate resistor and it worked perfectly.. When I applied 12v to the rotor of the alternator, it stopped dead though... but that turns out to be a too high frequency (450hz)... I experimented and found that 25hz works... I'm not sure if thats the optimal frequency but hey maybe its got something to do with voltage/frequency... but I'll have to go and research that a bit.
Thankyou so much for all of your help... the car headlamp setup was an inspiration... it was invaluable!
Cheers
Shaun