Search found 7 matches

by turkeyspoontaco
Jun 10 2021 6:25pm
Forum: EBike Technical
Topic: building the BESC - 100V, 400A motor controller
Replies: 97
Views: 6036

Re: building the BESC - 100V, 400A motor controller

Hm, that's just UVW, right?

To use a SPI encoder I found this:
https://vesc-project.com/node/950
by turkeyspoontaco
Jun 09 2021 9:44pm
Forum: EBike Technical
Topic: building the BESC - 100V, 400A motor controller
Replies: 97
Views: 6036

Re: building the BESC - 100V, 400A motor controller

I ended up finding some Olimex dev boards for $18 a piece. Unfortunately he ordered them and they shipped already, but thank you for letting me know - I'll keep it in mind. What encoders are you using with them? I'm planning to use AS5047s. The connection should be the same as any other VESC, right?...
by turkeyspoontaco
Jun 06 2021 2:23pm
Forum: EBike Technical
Topic: building the BESC - 100V, 400A motor controller
Replies: 97
Views: 6036

Re: building the BESC - 100V, 400A motor controller

Galp, have you tested 1.1? Just curious if you've built boards from those files. I downloaded the files from his site, v1.1, and finished assembling and programming them a couple weeks ago. No issues here. On another note, anyone have extra STM32F405RGT6? Luckily I had a friend send me the two I ne...
by turkeyspoontaco
May 21 2021 11:07pm
Forum: EBike Technical
Topic: building the BESC - 100V, 400A motor controller
Replies: 97
Views: 6036

Re: building the BESC - 100V, 400A motor controller

I had a hard time sourcing the gate driver, so I settled for the UCC21521DWR. This seems to be the exact same but with an enable instead of disable pin. I ended up using the inverter, U7, so it is useful to probably keep that footprint on the board, with an option of bypassing it via a solder jumper...
by turkeyspoontaco
May 12 2021 9:29am
Forum: EBike Technical
Topic: building the BESC - 100V, 400A motor controller
Replies: 97
Views: 6036

Re: building the BESC - 100V, 400A motor controller

Found another HW bug, R73 and C84 designators are swapped, but this is just filtering for the PPM input, not sure if anyone has used it yet.
by turkeyspoontaco
May 09 2021 5:13pm
Forum: Motor Technology
Topic: IGBT Upgrade?
Replies: 4
Views: 286

Re: IGBT Upgrade?

Still looking for a replacement? They are pretty abundant on eBay. Depending on the switching frequency you'd have no problem swapping it out for the 100 or 150A variant. Those bricks are pretty robust. Semikron also offers 75/100/145 amp versions in the exact same package. They are all identical di...