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Author Topic: 2A (or more) power supply that can run EP and Exdos (Read 1065 times)

Offline John Fante

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2A (or more) power supply that can run EP and Exdos
« on: 2018.July.18. 08:49:01 »
I am looking for a min. 2A power supply that can supply both my EP and Exdos card (with drive) so I only need one supply. I have the standard 1,3A but it is not enough to power both.

Any recommendations?
« Last Edit: 2018.July.18. 09:00:05 by Zozosoft, Reason: Corrected the unit (W->A) »

Offline pear

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #1 on: 2018.July.18. 09:12:06 »
Try this
Attention, reverse polarity, so the connection only via the EXDOS card (on my card there are a diodes rectifier up to 5A).
« Last Edit: 2018.July.18. 10:22:34 by pear »

Offline gflorez

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #2 on: 2018.July.18. 11:04:03 »
The "standard" English PSU has 2A output, while the German one has a lower output. Zozo said it on an old thread but I can't find it.

I think it is better to feed the EP+EXDOS with the original PSU(probably you will have enough with 1,3A), and the floppy drives with the additional PSU only(with +5v and +12v outputs you can connect older 5-1/4 drives).

Offline Zozosoft

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #3 on: 2018.July.18. 11:33:31 »
Are you want a use a real drive? Not just a HXC?

Offline John Fante

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #4 on: 2018.July.18. 15:33:20 »
I am using my HxC. I understood from pear that it was recommended to have a little bigger power supply than the 1,3W in the original if you power the computer through the controller.

I have not yet testet if the original 1,3W is enough. I do not yet have a the correct power cable to connect the floppy power output from the controller to the HxC. At the moment I am using an old and BIG external powersupply for the HxC. It works but I would like a more stable and smaller solution :-)

Offline gflorez

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #5 on: 2018.July.18. 18:23:56 »
If you are only connecting the HxC then you have enough power. Search for a +5v and ground points on the board, or better ask Pear where you can take the power.

Offline pear

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Offline gflorez

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #7 on: 2018.July.18. 20:06:16 »
No, sorry... I mean a stock EP+Pear's compact EXDOS+HxC... I think it is enough with the stock PSU.

Then I mean, where on your compact EXDOS card can John take +5v and ground safely?


Offline pear

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #8 on: 2018.July.18. 20:09:34 »
The card has a standard Molex socket with +5V power supply for the FDD drive.
« Last Edit: 2018.July.18. 20:12:48 by pear »

Offline Zozosoft

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Offline gflorez

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #10 on: 2018.July.18. 20:28:37 »
Aha...! I remember, you have put a bigger FlashRom in this EXDOS-Compact version. Then it is easy to put there the HxC Manager Rom.

Offline Zozosoft

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #11 on: 2018.July.18. 20:30:34 »
The card has a standard Molex socket with +5V power supply for the FDD drive.
Not a Molex, it is a Berg. Molex is the 5.25" power connector.

Offline Zozosoft

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #12 on: 2018.July.18. 20:32:12 »
Aha...! I remember, you have put a bigger FlashRom in this EXDOS-Compact version. Then it is easy to put there the HxC Manager Rom.
I suggested to John Fante order it is with big Flash ROM with lot of ROMs.

Offline Zozosoft

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #13 on: 2018.July.18. 20:34:40 »
You mean recovering the power of over 6 W from the power supply ?
And his machine already have a 1M SRAM board, which is also do some power reduction, like this machine.

Offline John Fante

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Re: 2A (or more) power supply that can run EP and Exdos
« Reply #14 on: 2018.July.19. 08:13:31 »
Sorry for messing up W and A. A mistype from many years of PC power supply usage where everything is measured in W. :oops:

I will try with the original power supply and see if it can take the load and report back.

Thank you!