Digital Electronics -- Encoders - Decoders - Multiplexors

[@amor8973]

thank you so much am a rookie. trying to get done with school. just an Associates really appreciate your time to make these videos. Thank you

[@MovieHQ]

+Angelica Morales Never say "just an associates". It takes hard work to get there and you should never think lesser of it. Besides, you might go on to get a higher degree later. Or you might work somewhere and make more many than many people that have higher degrees. :)

[@tuhadaapnaveer2731]

You are the only tutor who explains really well....

[@MovieHQ]

+tuhada apna veer Thank you.

[@Bits32]

Your method of content delivery is good. This lesson was very easy to follow up. Thank you for your efforts.

[@MovieHQ]

Thanks!

[@AI-ro2bm]

Thank you so much for uploading the digital electronics series. I am studying electrical engineering at university, this series has been invaluable to me. By far the best online tutor for digital electronics on youtube.

[@MovieHQ]

Thank you very much. Spread the word!! :)

[@rohmaxy9901]

Sir, I genuinely appreciate your effort and time invested in making this video. I was struggling to understand this topic. I now have a better grasp and its all thanks to you! Best Regards from Singapore

[@MovieHQ]

Thank you.

[@danielrodriguez9987]

You are the best professor! am lucky enough to have him as my teacher :)

[@MovieHQ]

Thanks. I apricate that!

[@khaled_ismail]

Thank you so much for this video. Your explanation is direct to the subject with no further ado . Greetings from Egypt :)

[@MovieHQ]

Thank you. And a reply greeting from the US - Kentucky!

[@vrajp123]

Your videos are quite helpful! Thanks for taking the time to make them.

[@SurgedGraphics]

Please continue doing great work. Your videos are very helpful!

[@MovieHQ]

Thanks!

[@Barbz]

You're great, thank you so much for taking the time to make these videos.

[@MovieHQ]

+Dan Barbarito Thank you!

[@nimrahyousuf3617]

EXCELLENT EXPLANATION THOUGH. KEEP IT UP.

[@MovieHQ]

Thanks!

[@TrionityIr]

Alligator eats the biggest one. First time hearing that version of inequalities

[@MovieHQ]

That is how I learned it in grade school.

[@george1703]

Great video! The N at the end of chip number just means through hole. ND is typically for SMD.

[@MovieHQ]

+George Foster Thanks!! I have never looked it up to know. So now I know.. :)

[@abhishekm1903]

Excellent videos and very nice explaination!!!Thank you sir

[@MovieHQ]

Thanks!

[@msjedyaqtaash4711]

great job sir keep uploading such videos .... from Afghanistan

[@MovieHQ]

+MSjedy Aqtaash Thank you for watching and the comment.

[@Leon-pn6rb]

+MSjedy Aqtaash How are things in Afg? I hope things have gotten better after american military left...

[@MovieHQ]

Thanks!

[@SahilKoundal1394]

Great effort sir....really helpfull

[@MovieHQ]

Thank you.

[@tawfiktawil925]

great job i appreciate your help

[@MovieHQ]

Thanks for watching!

[@sssfasih]

Thank You

[@MovieHQ]

You are welcome.

[@shriharimadhav]

WOW !!!...very helpful..

[@MovieHQ]

Thank you very much!

[@mbisetakobana]

these are very helpul sir can you please do more videos on MUX and DEMUx and parity generators and chekers as well,even half and full adders

[@MovieHQ]

Thank you. Unfortunately, these are probably going to be all the digital videos I will make.

[@james77011]

at time 15:32 on grey code, is the LSB being incremented by one? or is the last two bits increment by one?

[@MovieHQ]

Grey code follows a very specific pattern. Only one bit at a time changes. This is unlike regular counting where multiple bits change sometimes.

[@cfaion341]

thanks a lot man. really helpful :)

[@MovieHQ]

You are welcome. Glad I could help.

[@james77011]

Are u planning on making a video about grey code? I really didn't get it here. and i would love to understand grey code a little better. Or do u know of any nice videos on grey code?

[@MovieHQ]

I don't have plans to make one. Basically, grey code is used to represent data but only has one bit change for each count. For example, in binary when we go from 011 to 100 we have 3 bits change. In grey code, you would never have that. It is usually used to represent location data for an coded wheel. We used it in some old school robotics at one time. www.allaboutcircuits.com/technical-articles/gray-code-basics/

[@james77011]

@@MovieHQ so, the action of moving bits one at a time, is that similar to how a shift register work?

[@MovieHQ]

@@james77011 It is similar. For a multiplex/demux you would have serial data coming into the inputs and on the other end have serial data out.

[@TheArmando00]

On minute 5:15. It says that the out will be A > B if 85 >32. But on 35 > 31 he has to look to the other numbers inside of the 7485. Why?

[@james77011]

On the encoders can u input the number 12 in decimal and get out an 8 bit BCD? ( 4 bits for the decimal number 1 and another 4 bits for the decimal number 2)

[@MovieHQ]

I honestly do not know. There might be a chip that does that. I only have used the very basic 4 bit BCD ones.

[@solomonthell7589]

Great video! Are all encoders active low?

[@MovieHQ]

Solomon TheCursedOne Thanks!! Not necessarily. You really need to look up the part number and see how that particular chip is set-up. They are all designed for different uses.

[@fairyherb]

Sir, could you explain for me why we have to use bubbles ( invertion) in chip 74 147 N. For example, we can represent input of 5 by 000010000 instead of 111101111. Thanks Sir,

[@MovieHQ]

Thanks for watching! The active low (inverted) outputs are part of the chip itself. I did not add those. My best guess as to why they are active low is that we can use more current with a LOW than a HIGH.

[@arshadali104]

Good method

[@MovieHQ]

Thanks!

[@ahmadabboud8796]

what about the multiplexors? the video covers encoders and decoders only

[@MovieHQ]

Multiplexor is at 11:40

[@TheArmando00]

What class is this? I am in BCTC student.

[@MovieHQ]

ELT 120 and 220

[@girishgirish007]

74147N's outputs on the chart are all A's not B C and D why ?

[@MovieHQ]

Sorry. Sometimes input and outputs are labeled as ABCD and sometimes A0 A1 A2 A3 etc. I just used them both. A0 is the same as A, A1 is B, A2 is C...

[@james77011]

@ time 14:01 is impedance defined as the opposition to current? 🤪🤷

[@MovieHQ]

Yes. For this circuits is is very high so in effect is disconnected.

[@james77011]

Where will a comparator circuit be used in the real world?

[@MovieHQ]

You may want to compare 2 sets of sensors or data sets. Maybe you need to know if something is synchronized and you would compare those 2 signals. Pretty much anything.

[@girishgirish007]

what are demultipleaxers ?

[@MovieHQ]

They are on the opposite end of a multiplexer and work exactly the same just backwards. A single line into the chip with multiple outputs. Generally you synchronize the 2 together.

[@pogotv93]

not bad

[@Leon-pn6rb]

I find this topic amazingly boring. I understand what you say , but as soon as you move on to the next IC , I forget everything. I understood this whole video while I was watching this but I am still not sure of the functioning of an encoder and decoder' I hate this so much , I cant even...............

[@MovieHQ]

Some of it is pretty boring. Unfortunately, many times one thing builds on the other. Just stuck with it.

[@Leon-pn6rb]

thanks for being nice. I get really frustrated when I dont understand something,simply because I can't focus on boring stuff. idk how to make this more interesting...I guess I am doomed to fail x(

[@thefirst512]

12345a think of spiderman homecoming and tony making Peters web shooter. this shit can make that stuff real