hello,
first and foremost, good work and thanks to share your works.
I’ve read through the discussion and I’m interested in the version indicated, but I have some questions: where can I find the custom fw ?
Except mofsfets parts I don’t see the other components to be changed on the schematic or which ones
Mainly these: 4.7uF 100V 1210 capacitors, 75-80V electrolytic capacitors
SMBJ70A TVS
56k/2.2k voltage dividers
just precise sheet and name of component please.
i plan to order pcb and i 'm looking forward to start
thanks to answer
Hi
This ESC uses original VESC 6 firmware with no modifications. There is no custom firmware. It is 1:1 copy of vesc 6 hardware
only difference, it uses discrete mosfet drivers instead of unreliable DRV8301
If you want to make 80v or 100v version, you will need to:
- change voltage dividers from 39k/2.2k to something else
- change 60v capacitors to 80 or 100v capacitors
- change mosfets
- replace AD8418 with INA240A1DR
- compile your own firmware
I released gerber files and schematics for free, so people can produce their own PCBs. I do not plan to continue development of this small ESC. This project is finished and working reliably, but I no longer ride esk8.0 I am currently working on Sur-ron compatible VESC based on VESC 100/250
2 Likes
thanks to your answer.
i plan to use 13s4p battery(48v)I’m not sure these changes are necessary, are they?
thank you again for taking the time to reply.
Fully charged 13s battery is 54.6v. With over-shoots, that will be around 60v
DC-DC converter (LM5164) and mosfet drivers (UCC 27211 or MP18024) will survive 100v. AD8418 will work up to 70v. Only thing I would replace is mosfets (just to be safe).
For example, you can use these 80V mosfets
MOT8576T, MOT8113T, S400N08TL
If you only change mosfets and nothing else, you can use stock VESC 6 firmware