[chbot] pc power supply

Henri Shustak henri.shustak at gmail.com
Tue Apr 7 23:46:55 BST 2020


Hello,

I have done some work with dual battery bank (low voltage (24V/12V) setups. If you have chunky diodes and cables it is doable. Not recommended necessarily but you can make it work!

Henri



> On 6/04/2020, at 1:32 PM, Mark Atherton <markaren1 at xtra.co.nz> wrote:
> 
> 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> 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> 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
>> 
>> 
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