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Schematic Circuits

Zener Diode Signal Limiter

Zener Diode Signal Limiter   Zener diode has been commonly used as  signal limiter. With a single diode and a resistor, the limiter will limit the half cycle of a signal to it’s forward bias and  and the other half cycle to its reverse breakdown voltage.

 

zener signal limiter FC2BZ.gif

Using two back-to-back Zener diodes, the limiter will now limit full cycle symmetrically. In audio application, limiting an audio signal before power amplification will prevent a destructive high power output at the speaker.


Keywords : Zener, Diode, Signal, Limiter
Writer : nicola  |
8 Feb 2011 Tue   
|  11.391 Views
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