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Using a Function Generator to Create Pulse-Width Modulation (PWM) Waveforms

Authored on: Jun 30, 2005 by Bill Griffith

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The use of pulse-width modulation (PWM) continues to increase with the rise in digital control logic. Pulse width modulation offers a simple method for digital control logic to create an analog equivalence. Many microcontrollers have PWM capability built-in. PWM is also used in communication systems, since a digital signal is more robust and less vulnerable to noise. This application note provides a brief overview of PWM and offers ideas on how to use a function generator to create pulse-width modulated signals.

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