Sun January 27, 2013 By: Rishabh Chhari

zener diode

Expert Reply
Sun January 27, 2013
A zener diode is always used in reverse bias. In this diode, when the reverse bias voltage exceed a certain breakdown potential the reverse saturation current increases in this diode very abruptly. Thus for almost same potential across the diode, the current increases manifold. Thus it can be used for providing a regulated voltage in a supply.
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