GATE EC 2022: Analog Circuits Quiz 1
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In a forward biased region of a pn junction diode:
A p-n junction diode has a reverse saturation current rating of 50 nA at 32°C. Assuming
at 32°C is 26 mV. The dynamic AC resistance of the diode at 32°C and forward voltage drop of 0.5 V
Assuming diode are ideal in figure the current in diode D1
Determine the region of operation of silicon transistor shown in circuit below:
[Assume: β = 150, VBE (sat) = 0.8 V, VBE (active) = 0.7 V, VCE (sat) = 0 V, VD for diodes D1 & D2 is 0.7 V]
For the given transistor comment in which region the transistor is operating?
In the circuit shown in figure below:
The minimum value of β such that transistor is in saturation is
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