How do PWMs work? A theoretical and practical overview

We have referenced Pulse Width Modulation or PWMs multiple times in many of our tutorials but in this one, we decide to actually explain what it is. We go through the different aspects of pulse width modulation such as duty cycle, frequency, cycle period, and pulse height, while also discussing the various ways that PWMs can be used. After that, we show what a Pulse Width Modulated signal looks like on an oscilloscope using a frequency generator and how it varies with different frequencies and duty cycles.

This video tutorial is actually loosely based on one of our EEFAQs on CircuitBread, go check out the written portion that Jayesh did here: https://www.circuitbread.com/ee-faq/what-is-a-pwm-signal

0:00 Introduction
0:52 Conceptual overview and introduction of terms
2:42 Usages of PWMs
4:30 Frequency considerations
6:38 Practical view of a PWM
9:14 Overview and summary
11:50 The toast will never pop up

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