Pulse Width Modulation (PWM) or Pulse Duration Modulation (PDM) is a technique of converting analog signals into rectangular waveforms. The width of the waveform varies in proportion with the ...
AN article by J, Kemp (Electrical Communication, 20, No. 2, 1941) shows how the attenuation of electromagnetic waves propagated through the interior of rectangular metal tubes is calculated by the ...
Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit presented here makes it possible to smoothly alter the waveform of ...
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