Electronic Devices and Circuits - Engineering

Q1:

In given figure a silicon diode is carrying a constant current of 1 mA. When the temperature of the diode is 20°C, VD is found to be 700 mV. If the temperature rises to 40°C, VD becomes approximately equal to

A 747 mV

B 660 mV

C 680 mV

D 700 mV

ANS:A - 747 mV

Id = Io(eVD/ηVT - 1) By considering , then = eVD/ηVT Id is constant according to question, VD a T .