Pulse Modulation is a technique used in communication systems to encode information into a series of pulses. It involves varying certain characteristics of these pulses, such as their width, height, or position, to represent different data values. This method is commonly used in digital communication, where it helps transmit information efficiently over various media. One popular form of pulse modulation is Pulse Width Modulation (PWM), which adjusts the width of the pulses to convey information. This technique is widely used in applications like motor control, audio processing, and LED dimming, allowing for precise control and efficient energy use in electronic devices.