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    Can over-spinning a small wheel cause over-volt problems?

    My slow EV to fast EV moped conversion is going reasonably well, with some teething problems. It now has a Sabvoton 72150 and 20s7p pack and it goes like a little rocket. However, at the end of a fast section after closing the throttle, the Sab' cuts out and needs rebooting. Is this a common...
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    Is BLDC motor field weakening bad for the magnets?

    My understanding is that field weakening is necessary to run a motor above it's rated speed by reducing the magnetic flux. In a brushed motor the field winding current can be modified to reduce the magnetic flux, but with a brushless motor with permanent magnets, some electronic trickery is...
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    Sabvoton 72150 and 60 degree phase angle solution

    So I've been mis-sold a Sabvoton 72150 as I have a 60 degree motor and the controller is for 120 degree. I'm gutted because I've pinned all my hopes on this amazing controller and I want to keep it! I wanted to replace the controller on my Evomotion 3000 moped with this one, I'm tempted to...
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    Sabvoton 72150 phase testing, no combination works

    I have a Sabvoton 72150 and an Evolution moped hub motor with no information except 3kw, 72v, 60 phase angle. I bought a usb cable and a bluetooth dongle for the Sabvoton. I hooked up to both quite easily. I used the dongle and Mqcon app to run 36 phase wire tests, and the closest I got to a...
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