Introduction to the Op Amp Part 1
Why Electrical Engineering Stack Exchange recommends it
Electronics Stack Exchange answerers point people to it as a starting tutorial on op amps and for the nodal analysis approach to op amp circuits.
Recommended by 4 people across 4 different months, 2014 to 2022.
What it is
A 13-minute introductory lecture by Darryl Morrell that introduces the operational amplifier, the ideal op amp model, and how to analyze circuits containing op amps. It is Part 1 of an instructional engineering video series released under a Creative Commons license.
What people said
Recommends Kamil · 2014-11 · Electrical Engineering Stack Exchange · on “Why is a 0V DC point at the output of an op amp critical for feedback?”
Because output circuit must be closed to make current flow possible. Watch this: "Introduction to the Op Amp Part" by Darryl Morrel [this video] (at youtube.com).
Recommends AugustCrawl · 2015-01 · Electrical Engineering Stack Exchange · on “Can I use arduino to feed this circuit instead of an external power source?”
I'd recommend as a first step building up the original circuit using something like [LINK] to get an 'intuition' for how it works. As long as the Arduino has enough power at its output pin ( [LINK] ) this source says 5V and 20ma then you could try and design an new circuit with a boost converter [LINK] to step up to whatever voltages you need. If you are not experienced with circuit design I would try and stick to the original design as much as possible - just replacing the battery section with an op-amp section and leaving everything else the same. Here is a good introduction to op-amps [this video] . This may work out well - it really depends on the specifics of the actual set of components you
Recommends Bhuvanesh Narayanan · 2016-03 · Electrical Engineering Stack Exchange · on “Transimpedance amplifier with a non-ground reference”
Yeah if Vb=0 then you do get the needed answer that you have specified. Also try simple nodal analysis videos related to opmaps in YouTube, you might understand it better. This video series in youtube is good for a start. [this video] Simple nodal analysis are explained here with the opamp basics.
Recommends G36 · 2022-03 · Electrical Engineering Stack Exchange · on “I got a circuit solution but can't understand why I made a mistake”
@UmbertoFontanazza You cannot do that, you need to treat them as independent currents. To be able to see it draw a voltage source between GND and output. As shown here [this video]