Category: Z Term: Zener Diode Coupling Element
Description: A Zener diode
used as a direct coupling element between amplifier
stages in an electronic system. When no signal
is present, the resistance of the diode is
extremely high because the direct-current voltages
of the diode-coupled amplifier stages reversebias
the diode to below the avalanche point, and
no current flows from one stage to the next. The
signal raises the voltage enough to cause
avalanche breakdown; the signal is thus readily
transmitted from one stage to the following one.
Date: Aug 25, 2009
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