Each time the voltage is applied to the coil, the voltage starts to builds the flux, and current is proportional to said flux. And what is significance of ohms law, it sets the current final value for rising edge formula. But it never reaches that value coz driver limits it before reaching it, but nonetheless the natural rising edge does aim at that final value. If ohms law gets to apply more than this afterwards, it means the coil resistance is way too big, and the current setting in the driver becomes irrelevant because simply never reaches it. Other ways saying the driver doesnt get to limit the current wave because the currrent wave is smaller than the driver limiting setting. Which should not happen if the motor and driver make a good pair.
Like for example pairing a 12v psu with a 24ohms coil and setting the driver current to 1A peak, it will never actually reach 1A because the theoretical max is 12v/24r=0.5A, this is dc value even ignoring s*L impedance which would make it much lower at high frequencies. Basically this is what ppls posting here should avoid, and this is why it matters to make a good match between driver and motor.
Like for example pairing a 12v psu with a 24ohms coil and setting the driver current to 1A peak, it will never actually reach 1A because the theoretical max is 12v/24r=0.5A, this is dc value even ignoring s*L impedance which would make it much lower at high frequencies. Basically this is what ppls posting here should avoid, and this is why it matters to make a good match between driver and motor.