Operational Amplifier Tutorial - Basic Op Amp (Part 1)

http://www.FreedomUniversity.TV. A series of videos on the operational amplifier. For more videos on these and other technical topics. contact Professor Santiago at john@e-liteworks.com or visit the above website.

Category:

Education

Tags:

• operational amplifier
• basic op amp
• op amp
• circuit analysis
• voltage
• current
• non-inverting
• inverting

[sayyedhammad]

boss why Vp = Vn?

[drjctu]

@sayyedhammad An ideal op amp is modeled with infinite gain A where vo=A(vp-vn) where v0 is the opamp output.. Then, vo/A=0=vp-vn when A is very large. This in turn implies vp=vn. Hope this helps! Dr J

[midhunrahul1]

dude u say Vp=Vn,thn Vo=A(Vp-Vn),thn output of the amplifier must be zero ryt....xplain pls

[drjctu]

@midhunrahul1 An ideal op amp is modeled with infinite gain A. vo/A=0=vp-vn. This in turn implies vp=vn. Hope this helps! Dr J

[shuwukong]

excuse me, the current in both inputs can't be zero right? otherwise there would be no use at all

[drjctu]

@shuwukong Ideally, when these input currents at the inverting and noninverting are zero, it makes the op amp analysis easier. Practically, these currents are very close to zero. Also, if these input currents are not identical an output voltage will resut from this imbalance. That's why a potentially is used in some op amp applications to zero out the output voltage resulting from this imbalance. Dr J

[grawler88]

good job, keep up the good work ;)

[trance183]

I love this guy. He is so helpful. :D

[321boileranimal]

I'm Learnding

[USMANHEART]

@MathMatz thanx

[MathMatz]

@USMANHEART Just read the title of the window ;)

[tahirjibranjatt]

@USMANHEART janab bari study ho rahi hai

good keep it up

[USMANHEART]

I need the same software that u used in this video. plz tell me the name or link of the software.

[julikiman]

So hard,so good...

[gustavocostaholanda]

Great Video. Thank you.

[johnss]

1 person failed their ECE test

[rdcook89]

Thanks for the great video, saving my butt in Electrical Engineering Core Course!

[wseeback]

Ummm, I am dumb...