Well, now that I thought more about it, seems a very good idea that will work.
I know it this controller have on display temperature of motor but i don't know where should i connect temperature sensor. I don't have cable going out from controller. Tried to find pin on circuit but without success. From my MXUS v3 it's white cable going together with hall sensors.casainho wrote: ↑Dec 09, 2017 7:28 amYou know, this controllers can look at the motor temperature sensor and reduce the power output as the motor temperature increases. And don't you apply a temperature sensor to the mosfets and our OpenSource firmware could be developed to read that value and reduce the power as the temperature increases?
It's good think to consider about. I am going to put the same as i have 4110 mosfets. Right now they are working in pair for high and pair for low line. So new mosfets should not be a problem... but... legs of new mosfet (bottom side) must have the same length as this on upper side..
A lot of good informtion. Thanks. I just didn't finish my mod. It's originally 72v with lvc and regen. I have 8gauge cables and i believe 6,5mm xt150 connectors. I have bought lots of new capacitors 1000F and 3500F. Will fit perfectly on right side in controller. I will add some covers for them for reduce interference. My plan was to install controller with some thermal conductive compound inside box in ebike (upper side). I use mxus 3k but not sure if its 5T. I have ordered 5T. My max speed on 80v was like 65km/h. Battery will depend how much i can fit. I ordered 340 pieces 18650PF so in best scenario 20s17p pack worst 20s14p. This will meter how much i can pull to my controller. Don't want exceed 7A a piece. Just for safety. Did you tried for ex. 90A and 120A. Is it big difference?honya96 wrote: ↑Dec 10, 2017 3:36 amSo it is working? 120A will be fine for the mosfets but you need like 6mm2 silicone cabels atleast, not the 2mm original + xt150 phase connectors and as150 battery will be best, if you dont have precharge paralelel with 2 phase c63 250vdc circuit breaker which I recommend. I think I will be getting hot really fast actually, you need bigger heat sink, search "dense heatsink" on aliexpress. https://m.ebay.com/itm/48V-1500W-Brushl ... 2088804925 they can add reverse for free and you can ask them about temp sensor (ntc 10k only) but I see you use 72v right? You will need to mod. Voltage regulator, LV cutoff resistor, capacitors and fets. Maybe not worth it? http://s.aliexpress.com/byyQjUjU
http://s.aliexpress.com/aeuaMZZZ (they have 72v in stock just not listed) you can get them to EU without tax if you know how..... so you use mxus 3k 5Turn? 20s 18650 pack?
I hope this info I bring is relevant.
This assumes engineering design decisions where made beyond what's the cheapest to function. It may barely be switching the FET's it does have, or it might be fine switching double.
Thanks honya96!! Better dissipate heat and absorb vibration. Actually i have some big sheet used for GPU in laptops.honya96 wrote: ↑Dec 22, 2017 4:33 amWhen fitting the controller to the frame, atleast use some big silicone pad, if you screw it straight to frame just with paste sooner or later it will cause controller failure because of the vibration. Happend to me twice with these. :/ poor smd soldering job from factory.