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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. Show Process of Speed Control of DC Motors? Equation showed that the speed of a dc motor can be varied by control of the field flux, the armature resistance, and the armatur
A step-down transformer has primary turns Np = 100; secondary turns Ns = 10; primary winding resistanceRp = 100 ?; secondary winding resistance Rs = 2 ?. Assume that there is no l
Introduction: The scheduling system that is followed by the maintenance department is not well established and is dependable on employee's personal judgment. There were a lot o
The critical temperature above which the ferromagnetic materials lose their magnetic property is known as (A) Hysteresis. (B) Curie point.
What is the main difference between 16 bit and 32 bit versions of C/C++ while using in line assembler. The 32-bit applications are written by using Microsoft Visual C/C++ for t
Bronze is an alloy of (A) Copper and Tin. (B) Copper and Steel. (C) Copper and Mercury. (D) Copper and Aluminium. Ans: Bronze is an alloy of Cop
(a) Some antennas have a physical aperture area A that can be identified and is related to the effective area A e by A e = ρ a A, where ρ a is known as the aperture efficiency.
design a single phase distribution circuit from a supply point to a load
Explain the construction and working of a calomel electrode?
can you differentiate the alpha,beta and gamma
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