[sdiy] Triangle wave DCOs?

[harrybissell at wowway.com]

sounds tricky. errors in the ramp would be in amplitude in one
direction... the triangle could clip at either rail... Asymmetry in
a triangle would be MUCH more obvious than a sawtooth

H^) harry



On Fri, 16 Jan 2009 23:07:35 -0500, Aaron Lanterman wrote
> I was reading through some of the traffic on DCOs (typified by ramp- 
> with-microprocessor-controlled-reset type sawtooth cores), and was  
> wondering... anyone know of any similar designs for triangle cores,  
> where say a microprocessor is responsible for deciding when to 
> switch  the direction of the current going into the integrator? 
> Basically,  something like a Buchla VCO, but with a microprocessor 
> decided when to  trip the switch instead of a comparator.
> 
> I can't think of any particular advantage of such a scheme over a 
> ramp- with-reset, but there might be something I'm overlooking.
> 
> - Aaron
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy


Harry Bissell & Nora Abdullah 4eva