I'm installing 3 x Nema 34s. 5A 60vdc drivers.

Rough numbers without knowing what peak currents my drivers might pull, well I am looking at 900w huh if all three are maxed out which is plausible.

I've read that a non filtered power supply is the better way to go for steppers? To not cut out at peak current demands. Is this correct?

I already have a 1200w switching power supply now. Is there an advantage by purchasing a decent transformer, put it through a rectifier and feed that into my drivers? I guess it sounds a bit rough but keen to hear thoughts. Actually a driver that might accept ac might be an advantage too I have seen those around. B

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