Explain about darlington amplifier, Electrical Engineering

Assignment Help:

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

1395_Explain about Darlington Amplifier.png

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.

412_Explain about Darlington Amplifier1.png

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.


Related Discussions:- Explain about darlington amplifier

Calculate sending-end voltage at 0.9 pf lagging, A three-phase, 34.5-kV, 60...

A three-phase, 34.5-kV, 60-Hz, 40-km transmission line has a per-phase series impedance of 0.2+j0.5/km. The load at the receiving end absorbs 10 MVA at 33 kV. Calculate the follow

Calculate the impedance, What is the impedance Z between terminals A and B ...

What is the impedance Z between terminals A and B of the networks shown below? Express your answers in polar form. Three voltages represented by v 1 (t)=100cosωt, v 2 (t)=7

Ac machines, AC Machines: We have learnt the fundamental concepts of t...

AC Machines: We have learnt the fundamental concepts of the transformer, induction motors and special type fractional kilowatt (kW) machines. In the section of transformer you

Calculate the value in ohms of the rotor resistance, The synchronous speed ...

The synchronous speed of a wound-rotor induction motor is 900 r/min. Under a blocked-rotor condition, the input power to the motor is 45 kW at 193.6 A. The stator resistance per ph

How transistor will be used as an amplifier, (a) How transistor will be use...

(a) How transistor will be used as an amplifier? (b) Give relation between α and β? (c) Show the biasing arrangement for the PNP transistor in common base configuration, so t

Differentiate between a clamper and clipper, Q. What is a clamper? Differen...

Q. What is a clamper? Differentiate between a clamper and clipper. Clamping network shifts (clamps) a signal to a different dc level, i.e. it introduces a dc level to an ac sig

Illustrate breakpoint analysis, Q. Illustrate Breakpoint Analysis? When...

Q. Illustrate Breakpoint Analysis? When a circuit consists of two or more ideal diodes, it will have several distinct operating conditions resulting from the off and on states

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd