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What is reverse saturation current Why is it constant?
Since this current is due to minority carriers and these number of minority carriers are fixed at a given temperature therefore, the current is almost constant known as reverse saturation current ICO. This is due to surface leakage current. The surface of diode follows ohmic law (V=IR).
What is the formula for reverse saturation current?
Hint: We know that the current that flows in reverse bias PN junction diode is called reverse saturation current. From the diode current equation I=Is(eVηVT−1) the current should decrease as the temperature is increased but the opposite happens.
What is the meaning of saturation current?
: the limiting current through an ionized gas or an electron tube such that further increase of voltage produces no further increase in current.
What is maximum reverse current?
Maximum reverse current = IR, the amount of current through the diode in reverse-bias operation, with the maximum rated inverse voltage applied ( VDC ). Sometimes referred to as leakage current. Ideally, this figure would be zero, as a perfect diode would block all current when reverse-biased.
What is reverse saturation current in p-n diode?
In a PN junction diode, the reverse saturation current is due to the diffusive flow of minority electrons from the p-side to the n-side and the minority holes from the n-side to the p-side. when voltage breakdown occurs,current remains constant and not increase eventhough there is increase of voltage.
What is the reverse current?
Definition of reverse current. : flow of direct electric current in a reverse direction or of alternating current in phase opposition to normal.
What is saturation voltage?
saturation voltage, collector-emitter ( VCE (sat)) The voltage between the collector and emitter terminals under conditions of base current or base-emitter voltage beyond which the collector current remains essentially constant as the base current or voltage is increased. (Ref.