If some one want to get more information about VESC, you can also contact with me, I’m Grace, from Flipsky, we also design and manufactures ESC base on VESC, here’s our latest dual ESC based on VESC6 Producthttps://flipsky.net/collections/electronic-products/products/flipsky-dual-fsesc-6-6-based-upon-vesc®-6-heat-sink
The dual FSESC6.6 can reach 100A continuous.
Did you use a Vesc 6 and cool it with mineral oil? Or did you dump the idea?
I’ve done it with a Vesc 4.XX and it blew up. The oil was usually used for cooling computers, ultra low electrical conductivity but it blowed anyway.
It should be the same for the Vesc 6.
Why did it blow up? Short circuit or overheating? I didn’t expect it to short in oil, but on the other hand the voltages in a computer are very low.
I finished my version for the VESC6 for in-thruster application. I am looking for beta testers (you have to purchase one) if anyone is interested. This should be able to perform at a very high level, while avoiding common ESC problems like overheating and overcurrent.
What about Sabvoton ebike controllers? There are few 150A for 300-400$ with shipping. Comes with lcd, current limit, phaze current limit, cruise, hall sensor etc, at hefty 2.2kg. Not sure is it tessted well.
I was looking the Kelly controller as well , but i think erpm will be a problem… Running a 56mm sss motor 500kv (6 poles) on 12s gives a erpm : 500x50x3: 75000
Kelly has the option : 40000 , 70 000 and ultra high speed
No information about sabvoton , i read max 40 000
That is not the right calculation!
The max RPM of the motor assuming no losses would be 500 x 12 x 4.2 = 25200
Yes correct and erpm = rpm x nb of pair of pole
No problem with vesc type but not the ev controller type 
Pricedrop got my mind in clouds, i always forget about that erpm chip. Ugh 
My bad you were correct 
The kelly’s can do up to 100000erpm for the ultra high speed.
@50V, 360kv 6pole is barely over the limit 
54 000 , pair of poles …
Oh soo its 3 pole PAIRS. Idk why i thought 6 poles. So if their “drv” chip can handle 70k+ erpm, it should be worth a try?
I guess yes
A sabvoton 48150 for a direct drive type 80-100
A Kelly high speed for a geared 56mm
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Finally available on pre-order. A bit overkill for most foils, but robust and with plenty of headroom.
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Ya, that’s a powerhouse, really nice ESC, nice job Trampa!
These high powered VESC’s are opening the doors to really increble new builds!
I had my own (16S) 75v 200A VESC designed specifically for efoiling, it runs a true 100A continuous without water cooling, and up to 200A continuous with water cooling. Plus tons of built-in custom features like automatic half power throttle when volts reach low-level signaling you to start heading to shore, water cooling, inline anti-spark, reverse polarity protection, built in BEC, CAN port for communication with other arrays, PPM port, automated max current throttling if ESC starts to run too hot, waterproof high current ON/OFF button, USB link, and more…
This is not a china design esc, but real quality, more efficient, and true power ratings, built with the best parts available, and from a VESC specialist and robotics engineer who has been using this esc for a while but I had it altered to make it plug-in-play and added features just for efoilers for a foolproof DIY ESC. They will go into production in Feb and be available on our website with expected price $500 USD just in time for spring riding!
Some impressions… The 75/300 running a very beasty super low inductance inrunner.
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Very nice work, no doubt.
But:
Is there some video available with real 75V 300A? The housing is clamped to an aluminium block and gives up after some minutes reducing power to below 7kW. Talking about high current in the phases, the battery and capacitors can relax. Such tests we have seen before, with D-current, motors under water, a great inspiration, but power is not held because of much more heat and other problems in reality tests. With low dutycycle experiments we cannot see the effect. [] What would the motor winding look like if it consumes 300A at 75V constantly? Please show us what happens between 60-100% Dutycycle.
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