The EBMX high current layout is more simple and better. Less inductance, less heat, more conventionnal like other like sevcon, Kelly, Rinehart... and many current EV inverters
I have seen a few pics of it. I'm concerned it's the same bad design work of everything else currently from KO. That center aluminum plate is a mosfet board. It can't be cooled very well. The main power stage is possibly the same as we have already seen. I have a lot of skepticism that it's better than the other KO controllers. However, I know I'm getting through to KO with my content. They don't like what I tell them, but they can't ignore me and are in fact making changes. Where that will be in 6 months is any ones guess!
BAC4000 not really. BAC8000 is more comparable. BAC8000 is cheaper to make than the X-9000. It's better than the Pro/FSPEC in every way you can imagine.
Oh man, where are the guys now who were swearing on they mums the power stages were direct copies of each other with just a few components missing from the KO board
I haven't heard the ZSX clone BS in at least a week. I'm sure someone will bring it up again, but my hope is that this has been thoroughly debunked by now! KO OTOH is in fact the exaxt same power stage in the Pro and FSPEC.
I'm in that boat too. VESC or don't bother. I will agree that there are more optimal designs than the X-9000. With a dual board design however, you can't do a lot better than this and dual board is more complex than is multi-layer single board. With a multi-layer board instead of MCPCB, you could optimize more and put copper planes inside and that would make the need for copper reinforcing less important if not irrelevant. Then again, that's an entirely different controller design approach too! Frank and I were talking about using TOLL and massive vias under them with multi-layer to optimize for no external copper. I think he's onto something. I'd like to see a layout with TOLL and something similar to the Trampa 100-250. It has VERY SHORT current paths. I have not seen tighter optimization than the Trampa controllers. It does create it's own compromises for low side only current sensing.
