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PWM and comparing waveform (sawtooth or triangle)
PWM and comparing waveform (sawtooth or triangle)
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Old 12th December 2006, 04:41 PM   #1
rtarbell is offline rtarbell  United States
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Join Date: Sep 2005
Default PWM and comparing waveform (sawtooth or triangle)

This could be under power supplies as well...

I was wondering, when using PWM (either for designing a SMPS, or a modulated waveform, as in a class-D amplifier), some circuits compare the input waveform with a triangle wave, and other circuits compare the input waveform with a sawtooth wave.

What is the difference, and when would you use one or the other?
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