Programming instructions

Voltage Limiter
 National Instruments Corporation 1-37 Multisim Component Reference Guide
1.35 Voltage Limiter
This is a voltage “clipper”. The output voltage excursions are limited, or clipped, at
predetermined upper and lower voltage levels while input-signal amplitude varies widely.
In the example shown below, the upper voltage limit is set to +5V and the lower limit is set to
- 5 volts. These settings provide symmetrical clipping on the positive and negative peak
excursions of the input waveform when these peaks exceed the set limit (clipping) values.
The 10 v RMS (14.14v peak) input is limited at +/-5V.
Note If the input peak voltages are within the set limiting voltages, the input signal is passed
through the limiter circuit undistorted.
Unsymmetrical clipping is selected by setting the limit voltages to different values (i.e. +5V
and -2V). This technique may be used to produce non-standard waveshapes, starting with
sine, triangle sawtooth and other symmetrical waveforms.
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