Re: gEDA-user: mosfet design help

[carzrgr8@xxxxxxxxxxxxx]

Yep, that works ok Dan.  Let's file that under the "D'OH!" since I didn't try it myself :)  I sort of liked the mosfet idea from the perspective that no matter what the 
power amp supply, the feedback voltage (from the inverter) is always the same.  That makes the feedback circuit a constant.  Now, should the supplies change, 
then the resistor divider needs to change as well.  No biggie, now that I think about it.  Also, the topology changes a little to get the phase correct.  That too, is not 
a big deal.

thanks!

gene
----- Original Message -----
From: Dan McMahill 
> Ok, dumb question to follow here....  Why even bother with the 
> level 
> converter?  Is there a way to size your filter components to 
> allow you 
> to drive 50 V directly?    Obviously you have to watch out for 
> transients.  If nothing else your particular circuit looks like 
> a 
> voltage divider would work quite well, just replace R1 with a 
> series R 
> to the 50V and a shunt R to ground.  Size them to give 4.12k 
> looking 
> back into it and to give the required attenuation.
> 
> -Dan
> 
> 
> 
> _______________________________________________
> geda-user mailing list
> geda-user@xxxxxxxxxxxxxx
> http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
> 


_______________________________________________
geda-user mailing list
geda-user@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user