Discuss the use of PWM (Pulse Width Modulation)

Pulse Width Modulation (PWM) is a technique used to control the power delivered to electrical devices by varying the width of the pulses in a pulse train. Key uses include:

1. **Motor Control**: Adjusting motor speed and torque.

2. **LED Dimming**: Controlling brightness levels of LEDs.

3. **Signal Generation**: Creating analog signals from digital sources.

4. **Heating Control**: Regulating heating elements by modulating power.

5. **Communication**: Encoding information for transmission in various applications.

PWM enables precise control of power and efficiency in various electronic systems.