Pulse width modulation (PWM) is a powerful digital technique for controlling analog circuits with a microprocessor’s digital outputs. PWM is employed in a wide variety of applications, ranging from ...

One popular way to reconstruct analog signals in microcontrollers (µCs) is through pulse width modulation (PWM). However, this modulation produces a large number of harmonic components, which limits ...

A pulse signal is defined by its amplitude and pulse width.A periodic pulse train has a frequency, or pulse-repetitionrate, and a duty cycle—the ratio of pulse width to repetitionperiod, varying ...

1. Analog signal and equivalent pulse-width modulation. (Click this image to view a larger, more detailed version) To convert from analog to digital, the analog signal first is sampled at a carrier ...

One widely used approach is pulse-width modulation (PWM), which controls the power switch output power by varying its ON and OFF times. The ratio of ON time to the switching period time is the ...