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Forum: 702. Power Supplies

Mon 16 February 2009, 13:15

Replies: 77

making sure a power supply is correct

Views: 85,652

Posted By bradm

Hector, I homebrewed my power supply from parts I...

Hector, I homebrewed my power supply from parts I had lying around; I had an existing 70v 300va toroidal transformer, but it has an input option for 120 or 240v primary. I wired the 240v primary to...

Forum: 702. Power Supplies

Fri 09 January 2009, 07:44

Replies: 77

making sure a power supply is correct

Views: 85,652

Posted By bradm

I'm no transformer or winding expert, but it will...

I'm no transformer or winding expert, but it will be a combination of factors. The limiting issue is I believe, heat dissipation.

You certainly need sufficient gauge wire, or you'll burn out the...

Forum: 702. Power Supplies

Thu 16 October 2008, 06:51

Replies: 77

making sure a power supply is correct

Views: 85,652

Posted By bradm

I agree with that

Dave, I'm running a G540 with OM motors and a 7.2 geardown, and I'm happy. So it looks to me like your reasoning is sound.

Forum: 702. Power Supplies

Wed 15 October 2008, 19:12

Replies: 77

making sure a power supply is correct

Views: 85,652

Posted By bradm

Mostly Right!

Dave, you're doing great.

I think you have two challenges with those motors and a G540: The G540 won't put out the 4A / phase (3.5A max), and the inductance is outside the Gecko's sweet spot.
...

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