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

Conditions in which rc circuit behaves as integrator, Q. Explain the condit...

Q. Explain the conditions under which an RC circuit behaves as Integrator? Integrator is a circuit in which the output voltage is proportional to the integral of the input. Out

Determine n-type semiconductor of example which material, N-type semiconduc...

N-type semiconductor is an example of (A)  Extrinsic semiconductor.            (B) Intrinsic semiconductor. (C)  Super conductor.                        (D)  Insulators.

Dc motor control, how thyristor work in speed control??

how thyristor work in speed control??

Find the duty ratio and neglecting friction and windage, A 440-V, 60-Hz, si...

A 440-V, 60-Hz, six-pole, wye-connected, wound-rotor induction motor with a full-load speed of 1170 r/min has the following per-phase parameters referred to the stator:R 1 = R' 2

Activities to preparing long-term plans, Activities to Preparing Long-term ...

Activities to Preparing Long-term Plans 1. Data collection regarding existing loads, forecast of expected loads, operating conditions, and etc. from Grid substation up to cons

Ratio, how do ratos connect to engineering

how do ratos connect to engineering

TRANSISTOR BIASING CIRCUITS, HOW TO FIND THE OPERATING POINT OF THE TRANSIS...

HOW TO FIND THE OPERATING POINT OF THE TRANSISTO IN A COLLECTOR TO BASE BIAS CIRCUIT

Weins bridge oscillator, please give me the ckt for wein bridge oscillator ...

please give me the ckt for wein bridge oscillator with 5KHz frequency using transister (with exact values of resistor and capacitor).

Explain the johnson counters, Explain the Johnson Counters? The Johnson...

Explain the Johnson Counters? The Johnson counters are a variation of standard ring counters with the inverted output of the last stage fed back to the input of the first stage

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