The 1K resistor was to the input of the fet driver, not the input of the FET, I used a 4.7 ohm resistor to input of FET, Apparently putting a resistor in line helps with ringing prevention.

To all those that are interested in the outcome - I dont know yet - however it's working well enough on low voltage, I havent had the guts or time to plug it into 240V yet.

The solution was to drive the motor top and bottom it was somthing I didn't want to do, however the FET drivers make things pretty easy these days driving high sides. The only issue I seem to have now is when the motor gets overdriven the voltage on the bus caps shoot up and will blow them if I let it, so I have to implement an active resistor system, or somehow try and feed it back into the mains.


I believe the newer Fisher and Paykel washing machines feed power back into the supply when slowing the drum down from spin cycle so shouldnt be too expensive to implement - maybe a little complex for me tho.

I also need to learn about quenching big spikes, when drive is under significant load transients are all over the place causing issues.

Thanks to all that took the time to respond