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Created March 23, 2013
Last modified March 24, 2013
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PWM with 555. Timer gens triangle waveform; op amp modulates it.


555 produces square wave. Simple low pass converts to triangle waveform. Op amp modulates input into pulse train. Needs improvement in triangle generation to improve linearity ... hoping for suggestions. Faster op amp for real world application, slew rate mis-forming output pulses.


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