Linear Circuits 1 - 12 - Dependent Sources, Part 1

Name: Linear Circuits 1 - 12 - Dependent Sources, Part 1
Rating: 4.7 (37 reviews)

What are dependent sources, and how are they used?

Created byMark Budnik, Mark M. Budnik

Last updated 9/2020

English

English [Auto],

What you'll learn

What are dependent sources?
How are dependent sources the same and different from independent sources?
How do I solve circuits with dependent sources?

Course content

1 section • 9 lectures • 38m total length

Agenda0:10
A Word on Linear Circuits Textbooks....0:19
Review2:53
Introduces dependent voltage and current sources, reinforces fundamentals of ohm's law, power, and sign conventions, and shows how to apply kcl, kvl, and series/parallel resistor rules to analyze circuits.
Dependent Voltages Sources and Dependent Current Sources - Still Just One Job4:48
Identify and analyze dependent voltage and current sources, including voltage controlled voltage sources and current controlled current sources, which are diamond shaped and driven by other circuit values.
A Voltage Controlled, Dependent Current Source Example6:22
Analyze a voltage-controlled dependent current source: compute vx across a 4.7 kΩ resistor from a two-million amp source, then derive a 47 A dependent current to the right.
A Current Controlled, Dependent Current Source Example8:32
Analyze a current controlled dependent current source fed by a two-amp independent source, solve with Kirchhoff's current law and Ohm's law to find the top-node voltage of 0.857 V.
Calculating Power with Dependent Sources6:26
Calculate currents I1 and Ix from VE, compute power absorbed by the 1 ohm and 3 ohm resistors, and confirm power balance for independent and dependent current sources.
Another Current Controlled, Dependent Current Source Example7:59
Analyze a current-controlled dependent current source that multiplies the 15 ohm current by four. Apply Kirchhoff's current law and Ohm's law to determine the top node voltage Vx.
Summary1:13
Explore how dependent voltage and current sources differ from independent ones, with supply voltages calculated from values elsewhere and currents determined by other circuit variables.

Requirements

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

Description

Day 12 of Linear Circuits. We introduce dependent sources. While many engineering students are scared of dependent sources, it turns out that they behave exactly like the independent voltage sources and current sources we have seen before. It just turns out that their supply voltage (or supply current) will vary based on something else in the circuit.

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

Who this course is for:

Beginner Engineering and Physics Students