I can't believe after searching so many videos finally i got the perfect and accurate 100% explanation type of video... Thank you thank you so much for making this video... Your hard work paid off...
when Q4 is On ,its base is at .7 w.r.t ground .Q4 gets base drive from Q2 ,So when Q4 is On ,Q2 has to be On . Therefore Collector-Emitter volt Vce-2 is .3 (saturation value). Hence Vb3 =Vc2=.7+.3=1 v For Q3 to be On it's base-emitter junction must be forward biased. If Q4 and Q3 want to be conducted simultaneously ,D 1 needs to Active . so the base volt of Q3 must be Vb3= Vce(sat) + Vd1 + Vbe3 =.3+.7+.7=1.7 Since ,Vb3 only 1 V when ,Q4 is active . Hence , it can be said that Q3 And Q4 can't be conducted simultaneously .
the way you say "stage" is completely ununderstandable... have a look at the "-ge". Thanks for the video :) The same with "voltage", you say "voltace" and "stace"
It's bcoz if Q3 will be 0 then Q4 will be 1 ,reason is transistor Q2, which acts as switch... just remember at a time only one of the two transistor in tottem pole i.e Q3 and Q4 , only one can be high...
I can't believe after searching so many videos finally i got the perfect and accurate 100% explanation type of video... Thank you thank you so much for making this video... Your hard work paid off...
You are a savior.
Great. After hours of searching finally got the best one.
The best video for TTL in youtube!... Thankyou sir!!!
Brother with your help i have attempted ttl three input nand gate in paper,
Thanks alot bhai....☺☺
aweome and very well explained that our teachers in colleges cannot not explain like this
THANK U VERY MUCH
ALE NATARAJ
Very well done!
I loved this video. Play it at 0.75x speed
Brother ,Thank you very much....This topic is in out syllabus....Thanks......
Great explanation!
This is really nice, thank you
...... Excellent explanation.........
very good explanation sir
Thank you sir, you made it really easy to understand.
proud of you.
#iiucian
very well explained sir!
Perfect lecture sir
Well explained..
Please reduce the speed
thanks sir...its very helpful for me..
i will score full marks tommorow in 3rd sem papers
Bro you rock☺
how q2 acts as phase splitter
Why the current dont flows trought the base of Q3 when Q2 is ON?
when Q4 is On ,its base is at .7 w.r.t ground .Q4 gets base drive from Q2 ,So when Q4 is On ,Q2 has to be On . Therefore Collector-Emitter volt Vce-2 is .3 (saturation value). Hence Vb3 =Vc2=.7+.3=1 v
For Q3 to be On it's base-emitter junction must be forward biased. If Q4 and Q3 want to be conducted simultaneously ,D 1 needs to Active . so the base volt of Q3 must be Vb3= Vce(sat) + Vd1 + Vbe3 =.3+.7+.7=1.7
Since ,Vb3 only 1 V when ,Q4 is active .
Hence , it can be said that Q3 And Q4 can't be conducted simultaneously .
@@raselrahman3822 u have mention vsat which transistor vsat are u talking about?
Cool :)
Bro,this is amazing.Its really very helpful for me..but don't mind plz explain your concept in slow..don't be fast..
Ha ha....I actually talk fast...Could not help with that....
the way you say "stage" is completely ununderstandable... have a look at the "-ge". Thanks for the video :) The same with "voltage", you say "voltace" and "stace"
good, keep it up.
ACHA RE,.
sir can you have a tutorial on How to design 4 bit parallel adder using IC 7483 and NAND gates only plz plz plz sir plz do a tutorial on this
this a very imp ques may i can have it in my ques paper in semesters plz sir do a tutorial on this
Maybe you should work for your degree instead of asking others to do it
sir pls tell me which transistors is used in this circuit...
shruti tripathi common emmiter
NPN Transistor
What is the importance of D1 diode?
Totem pole configuration
That's it
osm sir
At 2.05 min, when base of Q 3 is zero Why is base of Q4 one
It's bcoz if Q3 will be 0 then Q4 will be 1 ,reason is transistor Q2, which acts as switch... just remember at a time only one of the two transistor in tottem pole i.e Q3 and Q4 , only one can be high...
Bhest video sir
Our teacher should learn how to teach the subject
Cant understnd what you say😑
bad luck then...
you speak too fast