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Q Explain about 'Darlington Amplifier'?
DARLINGTON AMPLIFIER : A CC stage followed by another CC stage has an input resistance of about (b + 1) 2 times the emitter resistance of the second stage. More precisely, using the b transform, it is
If RE1 is removed, the second term is about b2 times RE2. Furthermore, if the collectors are connected together, the result is a Darlington stage, as shown below.
This stage can be viewed as a "Darlington transistor" because it has three terminals and an equivalent b of about b2 . Darlington BJTs can be used in any of the three BJT configurations.
Q. A source of impedance ¯ Z S = R S = 100 has an open-circuit voltage v S (t) = 12.5 cos ωot and drives a 75- transmission line terminated with a 75- load. Find the current
We shall demonstrate load-line analysis to find the diode current and voltage, and then compute the total power output of the battery source in the circuit of Figure (a), given the
Design a 4-bit synchronous counter that has the following sequence: 0 ?4? 9?12 ? 14 ?15 and repeat using: i) JK FF ii)D FF
We now have an equation for the magnetic field H at a distance r from a conductor carrying a current I amps And Ampere's experiments show that the force per unit lengthbetw
Q. Three single-phase 100-kVA, 2400:240-V, 60-Hz transformers (each ofwhich has an equivalent series impedance of 0.045+j0.16 referred to its low-voltage side) are connected to fo
Q. Consider an RC parallel circuit excited by (a) i(t) = 20e -2t A, and (b) i(t) = 20 A. Find the forced component of the current through the capacitor for R = 2 and C = 2F.
what is Zener diode ? give some uses of it .
Input output The parallelogram symbol is used to represent the input output process as shown below. IN01H
Q Determine the effective input noise temperature of a long piece of waveguide (that connects an antenna to a receiver) with a loss of 3.4 dB at 12 GHz and a physical temperature o
Given the INPUT: • An array of 64-bit unsigned integer elements stored in the memory starting at a known location SOURCE. • The size of the array (i.e., number of elements) stored
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