Instructions for Pulse Width Modulation (PWM)

Step 1: Click on 'Generate Message' button to generate input message signal
Step 2: Then click on 'Generate Carrier' button to generate carrier signal. You can change the message and carrier signal frequencies from the input field. The carrier frequency has to be more than the message frequency
Step 3: Click on 'Generate PWM Signal' button to generate Pulse Width Modulated (PWM) Signal

Message Frequency in Hz:

Square Carrier Frequency in Hz:

Instructions for Pulse Width Demodulation

Step 1: Ramp generator produces a ramp signal that either increases or decreases linearly. And Converts pulse width information into a varying voltage. Adder combines the ramp and PWM signals into a composite signal carrying the original information and then low-pass filtering
Step 2: You can Demodulate the PWM Signal clicking on the 'Demodulate PWM Signal' button
Tip: Pulse Width Modulation (PWM) settings auto-transfer to the Pulse Width Demodulation tab. No need to re-enter values. Keep both tabs open, or demodulate immediately after modulation.

Cut-off Frequency (Hz)