Darlington Pair/ Darlington Transistor

  • Thread starter Thread starter Larrytsai
  • Start date Start date
  • Tags Tags
    Pair Transistor
Click For Summary
Darlington transistors are designed to amplify weak signals and consist of two NPN BJTs connected in a specific configuration. To create a Darlington pair, the emitter of the first transistor is connected to the base of the second, and their collectors must also be connected together. Additionally, PNP Darlington pairs can be constructed using PNP transistors. The Sziklai pair, an alternative configuration, may offer certain advantages over the traditional Darlington pair. Understanding these configurations is essential for effective circuit design.
Larrytsai
Messages
222
Reaction score
0
Hey guys,

I just found out about these darlington transistors, and I read that the purpose of these transistors are to "amplify WEAK signals".

After taking a look at the circuit diagram for the darlington pairs, it seems to me that it is just 2 npn bjts with one of the bjt's emitter connected to the base of the other. Well I was wondering is this how you make a darlington pair?, you just get 2 bjts and connect one emitter to the base of the other?
 
Engineering news on Phys.org
Larrytsai said:
After taking a look at the circuit diagram for the darlington pairs, it seems to me that it is just 2 npn bjts with one of the bjt's emitter connected to the base of the other. Well I was wondering is this how you make a darlington pair?, you just get 2 bjts and connect one emitter to the base of the other?
No, the transistors should have their collectors connected together as well. It is also possible to have a PNP Darlington pair.

It's worth noting that the http://en.wikipedia.org/wiki/Sziklai_pair" may have advantages over the Darlington Pair.
 
Last edited by a moderator:

Thread 'What mathematics software should engineering students use?'

What mathematics software should engineering students use? Is it correct that much of the engineering industry relies on MATLAB, making it the tool many graduates will encounter in professional settings? How does SageMath compare? It is a free package that supports both numerical and symbolic computation and can be installed on various platforms. Could it become more widely used because it is freely available? I am an academic who has taught engineering mathematics, and taught the...
View full post »

Similar threads

Engineering Analyzing the output impedance and open loop gain of a IC-741 Op-Amp
  • · Replies 2 ·
Replies
2
Views
3K
Enhancing Circuit Design: Adding a Second Solenoid in Parallel
  • · Replies 3 ·
Replies
3
Views
4K
3 or more transistor darlington
  • · Replies 6 ·
Replies
6
Views
6K
Need help in making my Electronics Project using BJT....
  • · Replies 1 ·
Replies
1
Views
2K
What is causing the unexpected behavior in my Darlington pair circuit?
  • · Replies 5 ·
Replies
5
Views
3K
LTspice: Implementing a Single Balanced BJT Mixer
  • · Replies 17 ·
Replies
17
Views
2K
How does a transistor act as an amplifier?
  • · Replies 6 ·
Replies
6
Views
937
Why do we need multiple amplifier stages in electronic circuits?
  • · Replies 33 ·
2
Replies
33
Views
5K
Limiting output voltage of an electric fence energiser
  • · Replies 22 ·
Replies
22
Views
7K
NPN transistor and how it operates....
  • · Replies 11 ·
Replies
11
Views
2K