[sdiy] Source for good power supply schematics

[Seb Francis]

Hi,

You will find 2 here:
http://www.elby-designs.com/asm-1/psu/psu-about.htm

If you are only running a small application then you will probably find 
the "Low-cost" one good enough.  It is +/-15V .. to make it +/-12V just 
use 7812 & 7912 instead of 7815 & 7915, and lower the transformer 
voltage accordingly.

The more complexe LM723 design can also be changed from +/-15V to +/-12V 
very easily - just by changing 2 resistor values (and use a lower 
voltage transformer of course).  See the LM723 datasheet for more info.

Seb



Jesse Yoder wrote:

>I am looking for good schematics for DC power supplies, one regulated
>at +/- 12V and one regulated at +/- 15V.  I had to design power
>supplies in electronics class in college, but that was a long time ago
>and I really don't remember much of anything,
>
>Thanks,
>~~Ponyboy
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