Current Soure Ramp Generator with Manual Discharge Switch

This circuit is designed to be ran in 'Interactive' mode where you open and close the switch S1 by clicking on it. The circuit features a current source charging a capacitor which creates a steady ramp voltage. The diode D1 clamps the voltage to its forward voltage. Closing the switch discharges the cap and until the swich is closed, the process repeats. A unity gain buffer is placed betwen the ramp generator and an RC low-pass filter , whoes output is also shown. This circuit was intended for entertainment .