U-Force version 4 released.

[TheSteve]

I just noticed this evening that firmware version 4 has been posted to Schulze's website. Version 4 could be a very worth while upgrade for users running 4S Lithium or higher nicd/nimh cell counts. It seems they have added overvoltage protection during braking.

When you brake the motors energy is converted into heat in the controllers mosfets, obviously high voltages can be generated and I assume its possible for them to exceed the maximum voltage rating of the mosfets - this could of cours e could be fatal for the controller. It seems if the controller detects a high voltage during braking version 4 firmware will dump the voltage into the battery pack, which will in turn limit the maximum voltage the mosfets see.

http://www.schulze-elektronik-gmbh.de/download/UFORCE75_V4.zip
http://www.schulze-elektronik-gmbh.de/download/UFORCE50_V4.zip

[Craps]

Steve
Do you think it will help with run time for those of using the TP8000-2S4P batteries in our longer races?

I just got in 2 brand new U-Force 75 ESCs from Starluck and I may check to see if they are Version 4s.

[TheSteve]

Hey Craps
I don't think you will see a difference as you're running a lower voltage - but you could always compare a v3 and a v4 and see if you can detect a difference. The build date and version are always printed on the Schulze label, so you can check for it there.(until its been flash updated of course, my primary U-Force was born as V1, was upgraded to V3 and is now V4)