[sdiy] filtering out a saw-reset glitch in a triangle shaper

[Ian Fritz]

At 03:17 PM 9/8/2009, David G. Dixon wrote:
> > Another approach is to make a simple counterglitch network to cancel the
> > spike.
>
>And what, pray tell, is this "counterglitch network"?

Simple. Differentiate whatever step is producing the glitch, invert it, and 
add it to the signal wave.  Level and pulse width must be chosen correctly, 
of course, but it works quite well. There are examples in EN.  And I had to 
use it in my Teezer VCO to compensate for pedestal charge in the switching 
FETs.  (Otherwise the up and down ramps have unequal times.)

Ian