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Topic: BLDC motor control (Read 142 times) previous topic - next topic


Feb 12, 2018, 05:25 pm Last Edit: Feb 13, 2018, 01:43 pm by Nimi_4299
we are doing a project which involves using bldc hub motor (3 phase, 250w ,36v,with sensors) can we use Arduino for controlling motor.


You can use the Arduino to sequence the motor and set the PWM level, but you'll need a motor driver circuit
(a 3-phase discrete MOSFET bridge at the very least).  There are motor driver chips designed to do the job
just by adding 6 MOSFETs and a few discretes, and some will do the commutating and PWM for you.

But first you need to realize a pre-build solution (full motor controller) is a much easier option, at these
power levels you need good protection designed into the controller, since this size of motor will have a stall
current towards the 100A range, and its all too easy to explode MOSFETs if you aren't paying attention to
fast-acting protection circuitry.

If you want to get into developing driver circuits for BLDCs, start at lower power levels!  If not, find a controller
that will do what you want.

But you haven't said what you want, "involves using" doesn't help us work out if you want bidirectional
control, speed control, high torque at low speed, or what.  If you want to implement a control loop for
a balancing robot for example, then say so, we can't guess!
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

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