Hi, I am looking for a circuit for a variable dual tracking power supply that can supply 0 to about 18 v dc at max. 1 amp. The purpose is to play around with some op-amps etc. The idea is that one pot (dual I suppose) controles the voltage. I will probably fit two volt meters and an amp meter as monitoring.
Thank you
R

 

Hello,

Does this schematic help a bit?
http://michaelgellis.tripod.com/power3.html

Greetings,
Bertus

 

Here is a simpler diagram
http://pdf.elenota.pl/pdf/Linear_Technology/1033fc.pdf (page 7)
Dual Tracking 3A Supply ± 1.25V to ± 20V

 

Thanks guys,

Maybe suggestion #2 with more common IC'S ??

Thanks anyway

R

 

Another way to approach the problem...

Creating a Virtual Power Supply Ground

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