Pulse Width Modulation (PWM)

Auditory Display: The "Listen as Tones" button plays a 400 Hz tone for a fraction of the period representing the duty cycle percentage (the variable pulse width) and a second tone that ranges from 0 to 400 Hz representing the average voltage level.

For information about Pulse Width Modulation here are some useful resources:

• BYJU's Pulse Width Modulation
• Geeks for Geeks Pulse Width Modulation
• desmos PWM Control simulator A more detailed PWM sim.

Simulator created by Steven Sahyun, University of Wisconsin - Whitewater, Physics Department using MATLAB to graph, converted with ChatGPT and then additional editing and coding. 3/10/2025