![said jellouli](/img/default-banner.jpg)
- Видео 10
- Просмотров 139 630
said jellouli
Добавлен 12 дек 2009
Видео
Malak Singing at her School's Variety Show
Просмотров 3848 лет назад
Malak with Mickey singing a duet. The song is "Drive" by Halsey.
Phasor Diagrams Second Video
Просмотров 1518 лет назад
This video shows you what a phasor diagram should look like in an AC circuit that has a resistor in series with an inductor
First Video About Phasor Diagrams
Просмотров 1358 лет назад
This will be the first video about phasor diagrams
Class A B AB Amplifiers
Просмотров 137 тыс.9 лет назад
A short video explaining the differences between class A, B and AB amplifiers.
Malak Manal and Ghizlane in 2002
Просмотров 38610 лет назад
Malak dancing with her cousin and aunt Ghizlane.
Selma Playing on Trampoline
Просмотров 23111 лет назад
Selma got excited because she just got a trampoline.
Selma-Super-Star.mp4
Просмотров 52414 лет назад
Selma doing her super star impersonation. She loves doing this type of stuff. In fact, this is one of her favorite videos.
💗💗💛💛
Superbly explained. Love the blackboard style drawing tool also !!1
Ab is the best of all to forget all the other shit completely
Greetings from Algerian dezert
Thank you, needed the refresher.
very well explained. I just need more explanation on how does the diode bias works.
Very well explained. Thank you so much for the tutorial...
What reference are you using when you say .7v at the base?
Thank you
Hello could you tell me what software you use for your pen. I like your penmanship
I love this explaination
Thank you.Very good explanation.
how can calculate the efficiency ?
What is the minimum value of the DC biasing current in class A output stage?Explain you answer
24:40 as it current flows through RL the assumption about zero volts made on 23:00 can't be true. It's should be current times RL. What did i miss?
How do you explain that the class B amplifier does not conduct when Vi=0? Shouldn't the Vcc power the transistor with a Ib, like it happens with the class A? You mentioned that all the current goes through R1 and R2... but why?
Is class A amplifier and class A push pull same thing?
pls tell the method of selecting and calculating the values of resistor ..
excellent, well explained , so clear
Can i know, what happen to class a and class b if i keep on increasing the dc/ac voltage?
I am like number 888 😊😊😊
worst video
This video is helpful. how can you help in the case where i repaired class AB amplifier, during testing process the amp blows output transistor once input signal is increased. Besides that, what should i measure to ensure that a biasing circuit output voltage and current are optimum for a pre-amp transistors. Thank you
How the positive input voltage forward bias transistor 1 having reversed bias of the upper diode ?
I think he is explaining well but the diagram is wrong.The upper diode should be foreward biased
Really awesome lecture.
for the Class AB amp. what is a typical DC current that this driver can produce? How much current needed to drive 8ohm speaker?
Thank you so much sir, it's good explanation and thank to showing us current flow, thank you so much sir
Great video, thanks very much
Thanx
Extremely helpful!! Thank you so much
Really artistic writing
I think the class B amplifier won't have the two resistors (R1,2) AS they would result in current irrespective of the input signal.
Brilliant !
Hello M. Jellouli. This is the clearest and most engaging video on the subject that I have seen. Thank you so much. I am sure your students enjoy your lectures greatly. Regards.
Thanks for the video, Need to put something in mind and make it clear for all is that. The efficiency of Class A is 25% and Class B is 78.5%. there is huge gap between 78.5 and 50%...
great lecture sir
This helped a lot ! Thank you !
So why in case of Class A the transistor conducts for both cycles even though negative cycle cannot turn the transistor ON?
This is amazing, what a performance 😍🙏🙏 from india
awesome video!!
tnx
I know it is just an abstract, but why if the max efficiency is 30% would you show Ic going to zero on a Ic/Vce curve @4:30? I learned this before but in pieces.
Didn't knew Morgan Freeman has a Electronics degree
Thnq🙏🙏
The efficiecy of class A is 20% less than that of class B 50% so B is better than A despite the distortion???
WTF, u have a very good hand writing in letter V
WHY we need the resistor r1 and r2?????and why the transistor will not on as we have Vs onnected ,,it can take voltage from there!!why ont it be on "on" state??
You explained so clearly , thank you so much , nice tutorial sir.
sir class AB amplifier's efficiency is 50 to 78.5%
If you say so!
what u mean by???
Awsome explanation