Clipping using PN junction diodeΒΆ

A PN junction diode conducts when the anode voltage exceeds the cathode voltage by an amount greater than the forward voltage of the diode. We can feed an AC voltage to the anode through a resistor and clip a part of it by applying a DC voltage at the cathode.

Objective

Demostrate clipping of an AC signal at different levels, using a PN junction diode

Procedure

_images/clipping.svg
  • Make connections on a bread board as shown in the figure
  • set WG to 1000 Hz
  • Change PV1 to change the clipping level
  • Reverse the direction of the diode to clip the opposite side
_images/clipping-screen.png

Discussion

The clipping level is decided by the applied DC voltage and the diode drop.