UNTRANSLATED .. 4.5

RC Integration & Differentiation

Objective

RC circuits can integrate or differentiate a voltage waveform with respect to time. A square wave is integrated to get a triangular wave and differentiated to get spikes at the transitions.begin_inset Separator latexparend_inset

_images/RCintegration.svg _images/RCsteadystate.svg

Procedure

  • Select WG triangular wave option
  • Set WG to 500Hz (T = 2~ms), R = 1~k\Omega and C = 1~\mu F
  • Adjust the horizontal scale to view more than 4 cycles.
  • Repeat the same for RC differentiator, at 50~Hz.

Discussion

Integration of a triangular waveform gives parabolic shape and differentiation gives a square shape. The differentiation can only be shown at lower frequency. Try these for other wave shapes, for example a squarewave. Integrating a square wave should give a triangular wave.

_images/RCintegration.png _images/RCdifferentiation.png