Lecture (L3-1,2) Node Voltages

  • Due Sep 23, 2021 by 11am
  • Points None

Text ## Lecture (L3-1,2) Node Voltages

We have now learned several methods of solving circuit equations.  Our EE toolbox now includes Ohm's law (to relate V-I-R), combining resistors in series and parallel to simplify the circuit, voltage and current dividers, and Kirchoff's voltage and current laws to solve for V and I in the circuit.  The Node Voltage method is another way of calculating V and I in a circuit.  Specifically, Node Voltages lets us calculate (surprise, surprise!) Node Voltages in the circuit.  This is a very popular method, because (1) Node Voltages are easy to measure (so we like to calculate them, so we can compare with measurements to see if our circuit is built correctly), and (2) there are generally fewer nodes than branches in a circuit (Kirchoff calculates branch currents), so the number of equations (size of matrix to be solved) is generally smaller than for KVL/KCL.

Questions of the Day (Learning Objectives)

  1. How can you solve for unknown currents and voltages in a circuit using the Node-Voltage method?
  2. What about dependent sources?
  3. What are super nodes, and how do you use them?

Readings & Reference Materials

  1. Textbook sections:  Ulaby 3-1, 3-2

    Download Cookbook_4NodeVoltageMethod.docx

In Class

Bring your notes. We'll start on your homework.

Lecture 3-1 in class.pptx Download Lecture 3-1 in class.pptx

handout1.docx Download handout1.docx

Extra practice (if we have time) handout2.docx Download handout2.docx

Remember, solutions are available under files/homework solutions do not post.

 

 

 

 

 

 

 

 

 

 

 

 

 

1632416400 09/23/2021 11:00am