Anyone know where the cogging in BLDC motors comes from?
Hey mate,It comes from applying current to a phase before the rotor reachs the point where maximum torque is applied, so the current in that phase acts like a brake until the rotor passes a certain point and then it accelerates again.
The same thing happens in an internal combustion engine if you fire the spark too many degrees BTDC. It goes by many names, and it is really bad for an engine. Don't think the BLDC motor will be permanently damaged from "cogging"