What Is a Pulse Width Modulator Circuit?
A pulse width modulator circuit, or PWM circuit, is a circuit that modulates a signal by varying the pulse width of the input signal.
Typically, it generates a pulse voltage with a variable duty cycle, and by changing the width of this pulse train, it transmits or controls the signal’s information. For example, it can convert analog signals to digital signals using a pulse train with a variable duty cycle, or it can be used for power control in power conversion circuits.
PWM circuits are used in various applications, particularly playing important roles in fields such as power control, communication, and motor control. The design of PWM circuits varies depending on the application, and in some cases, high precision and fast response are required.