Vi Graph For Diode. After the point V P the tunnel effect is reduced and current flow starts to decrease even though increase in voltage ie negative resistance region. Current must not pass through it for a very long time.
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The diode should not be short-circuited. Current must not pass through it for a very long time. Dec 16 2017 Tunnel Diode VI Characteristics.
Whereas if the diode is reversed biased it acts as an open switch as shown in the figure below.
Whereas if the diode is reversed biased it acts as an open switch as shown in the figure below. The VI characteristics of a zener diode is shown in the below figure. When the diode is forward biased it acts like a closed switch as shown in the figure below. In the beginning the current changes very quickly for a small change in voltage and reaches the saturation current.
