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Re: gEDA-user: Simple LM741 Op-Amp Example
On Sun, 17 May 2009 19:55:34 -0400, Michael B Allen wrote:
> That's what I ended up doing. I wanted to see if I could get it to work
> with one battery but it seems doing a virtual ground with two resistors
> is not as simple as I thought.
This is how I fabricate symmetric +/- voltages from a single supply:
http://bibo.iqo.uni-hannover.de/dokuwiki/lib/exe/fetch.php?media=eigenbau:pd-ac:pd-ac_v2_schematic.pdf
If you need more than 20 mA current on the rails the OP07 may be replaced
by a power opamp like TDA2030.
---<(kaimartin)>---
--
Kai-Martin Knaak
http://lilalaser.de/blog
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