Hi everyone, just a quick question regarding the design of the linear power supply for the stepper motors. I'm going with a transformer power supply and know to take into account the mains power supply variations to calculate the DC output but what margin should you leave for the voltage rise caused by the motors back EMF. Also I'm using quite a large toroidal transformer as I've got 4 motors to power, does anybody use inrush current limiting, as there are some nice looking 16A Sedlbauer current limiters on eBay at the moment for £30. Thanks in advance for any help.


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