commercial synth circuits

[Paul Perry]

At 06:39 PM 9/08/98 -0400, terry michaels wrote:

>Using the Franco method doesn't alter the design considerations with
>regards to FET switching time.  The goal is the same - discharge the
>integrating cap as fast as possible. 
>
I cant quite see why one has to discharge the integrating cap in one hit..
wouldn't it make sense to integrate up and then down at the same rate, to 
give a triangle instead of a sawtooth? Isn't this how it is usually done?
Admittedly, one now has to make a sawtooth from a triangle instead of 
vice-versa, but this is no worse..

paul perry melbourne australia