[iyonix-support] Re: Some Guidance Required Please
- From: Steve Fryatt <lists@xxxxxxxxxxxxxxxxxx>
- To: iyonix-support@xxxxxxxxxxxxx
- Date: Thu, 28 Apr 2011 19:46:59 +0100
On 28 Apr, Julie wrote in message
<51cb21b2ebjulie@xxxxxxxxxxxxxxxxxxxxxxx>:
> On 28 Apr, charles <charles@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> > surely a diode would drop the supply voltage by 1.2v which would give a
> > 4v supply to the motherboard.
>
> 0.7V if it's silicon, 0.2V if it's germanium, but even that might be too
> much.
In theory. In practice, working out the actual voltage drop will be "a
little more complicated than that".
I'm not even sure what the diode is supposed to achieve: the smoothing will
happen without it (using just another output cap), and adding sufficiant
capacitance to have any useful effect will still break the PSU's startup to
the point that either it or the Iyonix are likely not to start at all.
--
Steve Fryatt - Leeds, England
http://www.stevefryatt.org.uk/
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