Help me with estimating max current for BLDC motor

Tomasz Cybulski wrote 12/23/2020 at 12:56 0 points


I'm using a controller based on L6234D which has max current of 5A. But I can't figure out how to use that information for finding out max voltage I can use for my controller/motors.

The motors I have are gimbal motors with 10ohm per winding. I'm going to drive them with sinusoidal control (or FOC later). Does it mean that 24V should be ok even at full PWM cycle? Should I sum up current going through all 3 windings at any given time?