How Do I Correctly Dimension A Power Supply

[Brenck]

Hi all,

I've read the manuals for gecko drives, I currently have G203v and I' would like to know how to correctly dimension the power supply.

I know that for voltage there is the : 32 * (√mH inductance) = Power Supply Voltage

That is ok but I'm kinda confused about the Amps of the power supply.

Lets say if I run 4 motors both the same rated 6A.

Do I build lets say a 50VDC 6A power supply or a 50VDC 24A (4x6A)?

I know I could just throw a 30Amps so I overkill the thing but I don't wanna do that and the transofrmer gets more expansive as high as you go.

Or it doesn't work that way at all...?

Thank you,

Gustavo

[Dylwad]

You take the sum of the rated current of all motors, and give them around 67% of that. So if your running 4~ 6 amp motors you would want a 16 amp supply.

http://www.geckodrive.com/upload/Step_motor_basics.pdf Page 10

[Brenck]

Hi,

Thank you, I haven't seen this .pdf. It helped a lot.