Hi,
I am trying to drive a unipolar stepper motor (with 6 leads) using a bipolar drive. the drive consists of 4 sets of half bridges (high and low side switches using MOSFETs). I am planning to use only the low side switches to drive the 4 coil end of the stepper motor. The centre-tappings of the coils will be connected to Vsupply as usual.
I am attaching the diagram for you to have an idea.
My concern is whether the unused high side switch protection diode (in pink) will cause failure of the coil due to some transformer action.
Hope it's not too confusing...
I will be waiting for your feedback.
Regards,
Anj.
I am trying to drive a unipolar stepper motor (with 6 leads) using a bipolar drive. the drive consists of 4 sets of half bridges (high and low side switches using MOSFETs). I am planning to use only the low side switches to drive the 4 coil end of the stepper motor. The centre-tappings of the coils will be connected to Vsupply as usual.
I am attaching the diagram for you to have an idea.
My concern is whether the unused high side switch protection diode (in pink) will cause failure of the coil due to some transformer action.
Hope it's not too confusing...
I will be waiting for your feedback.
Regards,
Anj.