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

DC generators, 3. Why the external characteristics of a DC shunt generator ...

3. Why the external characteristics of a DC shunt generator is more drooping than that of a separately excited generator?

compute the cavity , Consider the optical cavity shown below. (...

Consider the optical cavity shown below. (a) Compute the photon lifetime. (b) Compute the cavity Q (assume that the wavelength region of interest is 500nm). (c) Su

What is the voltage gain of common gate amplifier, Q. What is the voltage g...

Q. What is the voltage gain of common gate amplifier? The controlled source gmVgs is connected from drain to source with rd in parallel.The resistor is connected Rs is connecte

Sequential circuit, a 4 bit synchronous counter uses flip flops with propag...

a 4 bit synchronous counter uses flip flops with propagation delay times of 15ns each. what will be the maximum possible time requires for change of state?

Explain biased and double clipper circuits, Q. Explain biased and double c...

Q. Explain biased and double clipper circuits.   Clipper can be either forward biased or reverse biased. If a battery is connected in series with the diode in a positi

Fourier deries, how to compute the fourier series expansion of a rectangula...

how to compute the fourier series expansion of a rectangular pulse train

Evaluate circular aperture of receiving antenna, Q. A satellite radio trans...

Q. A satellite radio transmitter has P in = 3 W and G t = 30 dB. The receiving antenna has a circular aperture with radius r at the ground station 30,000 km away. Find r in meter

Critical rate of rise of voltage - thyristor , Critical Rate of Rise of Vol...

Critical Rate of Rise of Voltage It  depends on  the junction temperature higher  the junction  temperature lower  the critical rate of  rise of  voltage. It is also known  as

Need of microphone in telephone hand set, Q. Need of Microphone in telephon...

Q. Need of Microphone in telephone hand set? Microphone: For all practical purposes, microphone is transmitter for telephone. The microphone converts acoustical signals in the

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