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powering a F8

Started by jerryinmich57, May 07, 2017, 04:45:59 AM

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jerryinmich57

I have a 12 volt 360 watt power supply with 3 sets of + and - outputs, And I see the F8 board has one input and a 30 amp fuse on the input side.
My question is can I pull all the power off one set of output terminals or do I need to run three sets of wires to get 30 amps out of the P.S.?
And are all of the + or the - hooked together in the P.S.?
Jerry

AAH

The 3 sets of wires on power supplies is mainly for convenience. As long as the cable is at least 2.5mm2 - 4mm2 (no idea of AWG) then you will only need 1 pair of power wires from power supply to F8

Bill Ellick

As Alan said, as long as you have the correct wire size to carry 30 amps, then you can run one pair of wires.  I would say that since it is 30 amp "capable" and that meaning at least 10 AWG for those of us here in the US, that I would probably run one pair of 10 AWG stranded wire or two runs of 12 AWG.

IF you are concerned about the single terminals on the power supply being able to supply 30 amp through them, you can get terminal straps to tie two terminals together or use wire jumpers to "hook" the terminals together and run a single wire from each (+ and -) to the F8 terminals. 
The terminals on the power supply are all hooked together internally "almost always" in the power supplies but sometimes not.  I would say with a 99.9% certainty that you have one that is! ;D  Only say this because I have seen isolated power supplies that have separate terminals but it is not a common thing anymore.

jerryinmich57

Thanks for the quick replies that's what I thought or I would think the F8 input would have split in 3 inputs.
Jerry

sklankowski

10 awg works well in these high current applications and fits in power inlets effectively. 

ChristmasBug

sklankowski -- Are you using 2 30AMP power supply's in that picture?
Raspberry pi - 1 Main
1 x F16V2-R Pixel Controller

jnealand

Let us not forget that we are talking about 30amps of DC power and not 30 amps of AC power.
Jim Nealand
Kennesaw, GA all Falcon controllers, all 12v Master Remote Multisync with Pi and BBB P10 and P5

Lights on Edgewood

Is one of the eight outputs on the F8-Distro enough to power a 4-string differential receiver board?  I assume yes as each output for the receiver board is rated to 5A the same as the F8.  Could I successfully run eight 4-string differentials from one F8 connected to one 350W power supply?


K-State Fan

Quote from: Lights on Edgewood on January 22, 2019, 07:54:50 PM
Is one of the eight outputs on the F8-Distro enough to power a 4-string differential receiver board?  I assume yes as each output for the receiver board is rated to 5A the same as the F8.  Could I successfully run eight 4-string differentials from one F8 connected to one 350W power supply?
It would depend on how many pixels are on that board.

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