[sdiy] My first schematic, me too

René Schmitz uzs159 at uni-bonn.de
Tue Jan 2 08:24:26 CET 2007


Hi Harry and all,

harry bissell wrote:
> I'd predict
> the reset time (perhaps with a comparator that is set just below the normal
> reset point, then use a track-hold circuit to ride out the glitch.  Woah 
> its pretty
> complex but looks workable. 

Thats probably overkill.

The technique I used in my VCO3 is quite effective. The Rectifier that 
turns the saw into a triangle is inverting, and I add a highpass 
filtered version of the sawtooth to the output of that. Effectively 
subtracting two glitches. So despite the finite reset time I got a much 
cleaner triangle to begin with, and consequently a better sine.

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159




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