[sdiy] OT: Wisdom

KATAYAMA pata at ieee.org
Tue Nov 23 12:44:27 CET 2010


Hi Velonica and the lists

I think all the outputs are high-rail saturation voltage, because each 
OPamp has positive feedback and positive voltage is fed to non-inverting 
input terminal.

...Or, did you mistake that input terminal?

Taku

(2010/11/23 20:27), Veronica Merryfield wrote:
> I wonder if the collected masses, who seem to have a decent handle on this sort of stuff, could take a quick look at the below ASCII art schematic.
>
> Assuming all tOhe resistors are the same, what would the output be of the two op-amps?
>
> Thanks
>
> 3.3v-----
> 	|
> 	\
> 	/
> 	\
> 	/    ---/\/\/\---
> 	|   |            |
> 	|-----|+         |
> 	|     |opamp  -----
> 	\  0v-|-
> 	/
> 	\
> 	/
> 	|
> 	|
> 	|
> 	\
> 	/
> 	\
> 	/
> 	|   ---/\/\/\---
> 	|  |            |
> 	 ----|+         |
>               |opamp ------ ????
>            0v-|-
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>


-- 
=========================================
KATAYAMA, Takuya
Muse Music Synthesizer Laboratory, Japan



More information about the Synth-diy mailing list