I may have found a free hack to get stronger Force Feedback!
Earlier in the thread RDC told me to have a look at the section in the 3950 datasheet regarding the SENSE resistor (Pin 7 to Ground). Initially I didn't understand what I was reading....
However I just read the article below*** and found out it is basically sets the current that the driver outputs to the motor. By removing it and connecting pin 7 directly to ground the full 2.8 amps will be available. I haven't tested this as Im worried about killing the PSU as the more current the driver produces the more the the PSU will need to deliver.
Now if Volts determine how fast the motor spins, and Current determines how much torque it can produce, then simply changing the PSU for a eg: 30/32v 5a one and bypassing the SENSE resistor the FFB should react faster and with more power. Bare in mind if you have the V1 wheel I dont think there is a SENSE resistor (or breakout diodes on the driver output)
I'll order a new PSU asap to test this out and report back
Another thing to consider is that the driver ic will run hotter so might need extra cooling to cope. Otherwise the protection circuits will kick in and the driver will shut down.This post has been edited by mikesnowdon: Aug 4 2012, 08:35 PM