Transistor emitter follower circuit in tamil

How to Build an Emitter Follower Circuit.
An emitter follower circuit is a transistor circuit in which the voltage at the emitter follows the input voltage. It is a mirror image, so to speak, of the input voltage. Therefore, the voltage at the output is the same as the voltage at the input.
The emitter follower circuit is also called a common collector circuit, because the collector is common with the power supply voltage.
The point of an emitter follower circuit is that it can act as a buffer. Since it has a high input impedance and a low output impedance, it mimics the effect of a buffer.
Therefore, if a voltage line needs to be buffered it can be connected to the input of this circuit and the load that needs to be powered connects to the output of this circuit.
In our circuit, specifically, the input impedance will be over 50KΩ and the output impedance will be about 5Ω. This creates a pretty good buffer effect on any voltage that needs to be buffered.
In order to correctly design an emitter follower circuit, several factors must be taken into account, including how much DC voltage is supplied to the collector of the transistor, how much current is desired to be passed through the transistor, and the frequency cutoff of the AC signals entering the input. We will go over all these concepts in much depth below.
We will show all the components and facets into building an emitter follower circuit that functions very much like a buffer and can be used as a buffer.
This is great when you don't have a buffer chip available or a logic chip that you can convert into a buffer.
With just a single transistor and a few resistors and capacitors, you can have the buffer-like effect.
We will show in this circuit how to configure it and how to choose the values of the resistors and capacitors, which is called transistor biasing.
Thank You for watching

[@prabu6466]

Sir single stage amplifier la common base kooda edukalama Enna adhulayum kooda input impedance low and out put impedance high thaane varudhu.

[@SivaKumar-gd9zk]

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[@THIYAGUMURUGANANDHAM]

What is the role of emitter follower in simple series voltage regulators ?

[@nishaashok3936]

Thank u sir

[@PravinKumar-ph1lg]

Sir can you explain about connected load calculation and what will be the load required from TNEB

[@offscreensingers7644]

தெய்வம் சார் நீங்க

[@Money-of4us]

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[@veronicaaveronicaa4465]

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[@retheeshvkm]

input impedance should be high to avoid source loading

[@sivakumarsivakumar9303]

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