Linear Circuits 1 - 23 - Operational Amplifiers, Part 3

Name: Linear Circuits 1 - 23 - Operational Amplifiers, Part 3
Rating: 4.8 (50 reviews)

Even More Examples of How to Use the Three Laws of Ideal Operational Amplifiers to Solve Any Op Amp Circuit

Created byMark Budnik, Mark M. Budnik

Last updated 9/2020

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What you'll learn

What are the three laws of ideal operational amplifiers?
Why don't I recommend memorizing all those other op amp equations?
How can you use the three laws of ideal operation amplifiers to solve a circuit?
How to solve even more examples

Course content

1 section • 10 lectures • 33m total length

Agenda0:03
A Word on Linear Circuits Textbooks....0:19
Review3:57
Review three laws for ideal op amps and refresh Ohm's law, power, and source behavior; apply nodal analysis, linearity and superposition, and source transformations to simplify circuits.
Three Ideal Op Amp Laws0:54
Explore three ideal op amp laws: the input voltages are equal, no current flows into the input terminals, and the output voltage adjusts to enforce the first two laws.
First Example4:43
Explore an op-amp circuit with two voltage sources, analyze input currents, and apply voltage division to find a 333 millivolt input and an output of -5.19 volts.
Second Example6:10
Analyze an op-amp circuit using voltage division and node voltages to find the output. The calculation shows zero input current and yields Vout = -9 volts.
Third Example3:14
Determine the op amp output by identifying both inputs at two volts, applying ohm's law to the 2 ohm and 3 ohm paths, and calculating a 7.33 volts output.
Fourth Example (Deceptively Simple)4:25
Solve an op-amp circuit with two voltage sources and resistors using Ohm's law, KCL, KVL, and ideal op-amp rules to find an output of two volts.
Fifth Example (Big Circuit with Two Op Amps!)9:02
Solve a large two-op-amp circuit by applying Ohm's law and Kirchhoff's laws, assuming ideal op-amps and zero input current, to determine node voltages and currents step by step.
Summary1:10
Learn the three ideal op-amp laws: input voltages are at the same potential, no current flows into the inputs, and the output adjusts to satisfy the first two.

Requirements

High School or College Physics
We Also Recommend Our Previous Linear Circuits Classes

Description

Day 23 of Linear Circuits. Operational amplifiers are some of the most essential building blocks of electric circuits. While the circuits themselves can be imposing, we show you three basic laws that hold true for all ideal op amps that allow you to quickly simplify and solve op amp circuits. After a quick review, we show you how to solve even more examples.

The material covers all of the lecture material from an twenty-second lecture in a traditional, sophomore-level linear circuits class.

Who this course is for:

Beginner Engineering and Physics Students