S-100 power supply voltage ranges
dkelvey at hotmail.com
Sat Feb 28 10:13:47 CST 2009
Look at the minimum level of the ripple. Most linear
regulators specify 3volts of head room. Add a little for
If regulated lines, I'd suspect that 15v for a 12v line is enough.
If simply filtered, you'll need heavy filters or you'll drop below
the 3v line.
> From: lynchaj at yahoo.com
> To: cctalk at classiccmp.org
> Date: Sat, 28 Feb 2009 10:03:10 -0500
> Subject: S-100 power supply voltage ranges
> Hi! What are acceptable voltage supply ranges for an S-100 power supply? I
> am assuming 115VAC input. My intended application is a small home brew
> S-100 backplane.
> I have seen the S-100 voltage rails vary but I believe +15VDC, -15VDC, and
> +9VDC would be sufficient. Herb's S-100 page lists the voltages as +18VDC,
> -16VDC, and +8VDC but I have seen other voltages used.
> Thanks and have a nice day!
> Andrew Lynch
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