What Is a Pulse Modulator?
A pulse modulator transforms information signals into pulses, playing a pivotal role in power control, communication, measurement, and industrial control systems.
Notable for their efficiency, precision, noise immunity, and compact design, pulse modulators are categorized by their modulation technique: pulse width modulation (PWM), pulse amplitude modulation (PAM), and pulse frequency modulation (PFM). Each type is tailored to specific applications based on its unique method of encoding information.
For instance, PWM is commonly used in motor and lighting control, PAM is preferred for digital audio and TV broadcasting, and PFM finds applications in speed and distance measurement tasks. Choosing the right modulator depends on the specific requirements of the application.