Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, Compact Discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude o

Pulse Width Modulation (PWM) is dramatically different form PAM in that it performs sampling in time whereas PAM provides sampling in amplitude. Consequently, the information is coded into the pulse time position within each switching interval. PWM o

Pulse Width Modulation (PWM) is dramatically different form PAM in that it performs sampling in time whereas PAM provides sampling in amplitude. Consequently, the information is coded into the pulse time position within each switching interval. PWM o