[chbot] pc power supply

Mark Atherton markaren1 at xtra.co.nz
Mon Apr 6 02:32:35 BST 2020


Here is a PSU that features load sharing 
https://www.digikey.co.nz/products/en?KeyWords=281-3356-ND

I do like Synco's observation though :)

On 6/04/2020 1:21 PM, Synco Reynders wrote:
> Wait... is everyone assuming the power-supplies are in parallel? 
> @Chris - is this what you desire? -since if the power-supplies can be 
> in series you can ignore many of the comments.
> /s
>
>
> On Mon, 6 Apr 2020 at 13:09, Charles Manning <cdhmanning at gmail.com 
> <mailto:cdhmanning at gmail.com>> wrote:
>
>     I agree with Volker
>
>     The default answer is NO, unless there are specific capabilities
>     for load sharing.
>
>     Even if it did "work" by luck, there is no guarantee it would
>     continue to work under different temperatures, different load
>     conditions and even different AC power voltages/ power factor etc.
>
>
>
>
>     On Mon, Apr 6, 2020 at 12:59 PM Volker Kuhlmann
>     <list57 at top.geek.nz <mailto:list57 at top.geek.nz>> wrote:
>
>         On Mon 06 Apr 2020 11:53:55 NZST +1200, Mark Atherton wrote:
>
>         > Yes, if they are identical power supplies, and have current
>         sharing
>         > features.
>
>         What kind of current sharing features?
>         What do they look like in PC power supplies?
>
>
>         I think in general, the answer would be no you can't combine them.
>         There's a good chance the output regulation interferes with
>         each other.
>         Best case would be not much output power from each, worst case
>         wild and
>         strange oscillations exceeding output voltage.
>
>         It might be worth a test, but I'm not confident to guarantee
>         that each
>         power supply and the load survive that undamaged.
>
>         Volker
>
>         -- 
>         Volker Kuhlmann
>         http://volker.top.geek.nz/     Please do not CC list postings
>         to me.
>
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> -- 
> Synco Reynders
>   m: +64 21 1825332
>   e: synco.reynders at gmail.com <mailto:synco.reynders at gmail.com>
>
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