Multistage Transistor Audio Amplifier Circuit
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- เผยแพร่เมื่อ 18 ธ.ค. 2024
- This electronics video tutorial discusses the basic elements of a multistage transistor audio amplifier circuit. It explains the importance of the bypass capacitors as it relates to voltage gain and distortion as well as the importance of the potentiometers for volume control and managing the input voltages. It also mentions the DC beta and hfe values of a typical NPN transistor as well as the purpose of the coupling capacitors. Finally, it discusses the efficiency of a regular common emitter transistor amplifier vs the class A transformer coupled amplifier.
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Multistage transistor audio? More like "Multi-playlist solid gold", because all of your videos are absolutely outstanding!
Hey men, btw im from philippines, i just want to say thank you cause you help me alot in physics and math :) thanks for teaching us and actually i understand alot from you than in my school ah i dont know what to say but thanks alot keep it up :)
SORRY MY ENGLISH IS BAD
I actually think your English is pretty good!
Very good video. I hope to see more videos in terms of concept like this. Keep doing the good work, mate!
This guy knows everything
At 22:30 , I happen to disagree because capacitive reactance is lower at high frequencies and this will allow high frequencies to pass through and on the other hand, at lower frequencies capacitive reactance is very high and this would block low frequencies,thus the maxim : A capacitor blocks DC and allows AC to pass through
currently preparing for my physics one final on Monday using your videos, will be studying this next semester in physics 2, I guess it never ends
How did your tests and classes go?
@@PunmasterSTP eneded up getting a b- in physics 1, but to be fair my professor was very difficult. Currently in my junior year of electrical engineering with a 3.6/4 gpa
@@Brandon-lx3mf I think a B is good, especially for a hard professor, and I'm glad to hear about your GPA! I was close to EE myself (I did biomedical engineering with a concentration in programming and electronics). How has that been going?
@@Brandon-lx3mf Would you say that this is a good first project to complete as an EE student, I'm still taking intro engineering courses but have been doing a lot of self-studying on the subject
@@fisherofmen489 Yes definitely. If you can understand this well you will do good in your electronic courses
I like the way you teach, it really helps my understanding. I would like to see more videos from you. Excellent job brother. My first like and first comment to this vedio.
For this. thumbs up bro; with regards from Kenya
12:22 if a.c affects distortion in q2 then how can whole circuit sourced by a.c ,q1 also gives out a.c ?
So resistor handles both a.c and d.c?
This was a really great discussion of how all the elements work together - once he explained then I understood it. However, I'm still lacking sorely in my understanding of how circuits are devised. When he added C6 and told us why then I felt like I was watching a magician pull a rabbit out of a hat though I was too distracted watching his sexy lady assistant to understand how and why the feat was accomplished. He needs to do some lectures on circuit design. Starting with simple circuits then to more complex ones.
Coupling is pronounced Cup the "o" is silent. Thanks for posting.
Great video man. I know this is theory but I'd love to see it on a breadboard, especially the transformer.
You are a great teacher!!!
I've been subscribed to this channel for a long time...who actually is this guy? Where's he from? What does he do apart from making great videos? Anyone know? And why 'organic chemistry' tutor?
He is a man of many secrets, the only question is will he ever reveal himself?
I know who he is
@@smashrugged Well based on the replies of that quality and pretend mystery I've lost all interest whatsoever in ever knowing. When you ask a simple question and these are the answers you get you just know it's time to walk away...
How can you solve circuits with complex capacitor layouts, i.e. that they cannot be reduced by using the formula for capacitors in series or in parallel? Does Kirchoff Law applies to capacitors too?
I think that Kirchhoff's rules always apply, but when analyzing alternating currents, you have to remember that capacitors and inductors each have a reactance.
I love ❤️ u dad
How do you integrate (lnx/x)^2
Answer please
Use integration by parts.
U=lnx
Du/dx=1/x
V=1/x^2
When integrate V=-1/x
The formula=uv-integral of vdu
-1/xlnx-1/x^2
The last answer you can remove of vector:
-1/x(lnx+1/x)
7:41 the number example Rc=2000 is better.
13:17 Vbe=0.6
C1, C2, C3 don't need to be that big in practice because of the input and output impedances of the stages. In practice 1uf will be enough and 10uf is overkill
Thanks 😊 keep it up 👍
I'm using these values on a circuit right now. This is not working
😭
Theory never works in real life
Why you use multi staging ampli if you can set the first stage Vce & Ic to half?
Consider Beta is 100 and the current on Ib is 1mA. You can only get 100mA of current on Ic. Multi stage amplifiers are used to increase power in the later stages. I am currently trying to make an RF amplifier circuit, current on the antenna is pretty much nA and takes careful amplification to get a decent signal to decode audio.
Organic Chemist tutor should change us name to Physics tutor. He teaches Physics a lot more than other subject.
I think he could probably change his name to "Almost Everything Tutor" honestly...
This is very organic hahaha
Thank you
What needs to be done for 1mhz.
Good
Love
i fucking love you man
have u ever tried to make a real circuit
There's other videos in this playlist where he demos circuits he's built.
This method is so different to all the others to the point it is confusing.
THat's because there are several incorrect statements in this video.
will you reveal your face soon?
No homo