PWM Signals
PWM (Pulse Width Modulation) signals are a digital technique used to simulate analog control by varying the duty cycle of a square wave. They encode information in the width of pulses rather than their amplitude, making them efficient for controlling power delivery to devices like motors, LEDs, and servos. This method is widely used in embedded systems, robotics, and power electronics due to its simplicity and low power loss.
Developers should learn PWM signals when working with embedded systems, IoT devices, or robotics that require precise control of actuators or dimming of lights without analog components. It's essential for applications like motor speed control, LED brightness adjustment, and generating analog-like signals from digital microcontrollers, as it reduces heat dissipation and improves energy efficiency compared to linear regulation.