A Waveshaper that uses several PWM circuits in parallel to create "staircase" style waveshapes

This module is a waveshaper that uses several PWM circuits (comparators) in parallel to create "staircase" style waveshapes. It has three outputs with differing numbers of steps in the waveform and voltage controls for the threshold points of the comparators. It is completely analog and is compatable in +/-12V or +/-15V systems.

http://www.bartonmusicalcircuits.com/multipwm/