[SI-LIST] Re: DC Power supplies Connected in parallel
- From: steve weir <weirsi@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Sat, 11 Aug 2012 02:37:10 -0700
On 8/11/2012 2:13 AM, Erfan wrote:
> Hai Everyone,
>
>
> I have few questions regarding the DC power supplies.
>
>
>
> What happens when 2 DC-power supplies are connected in parallel which has 2
> different voltages let say one has 12V and other has 5V.
It depends on the power supply designs. If they are not current
limited, you replace the fuses and perform other necessary repairs.
> What happens to
> their voltage and current, current has to get added up to my knowledge does
> it really happen in this case?
Ohm's Law prevails.
> What happens to voltage do I see 12V or 5V?
> what happens in case of grounds are isolated and not isolated?
> If I have to
> generate more current using 2 DC supplies in parallel then what care or
> configuration I should use. Wanted to know the practical limitations of
> using them.
>
Use supplies designed to share current.
>
>
> Kindly through some light in this regard.
>
>
>
> Regards,
>
> Erfan
>
>
>
>
>
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