Node Analysis, Dependent Sources (Lecture 5.2/6.1 - Chap. 3-4)

what are the equivalent of these three situations in a series circuit?

what are the equivalent of these three situations in a || circuit?

(keep the direction of the source that produces the larger current)

dependent source

models the situation where the voltage or current of one circuit elem is proportional to a voltage or current elsewhere

symbols for dependent voltage/current source

two types of dependent voltage sources (DVS)

gain = the constant

two types of dependent current sources (DCS)

gain = the constant

node voltages (v1, v2) and elem voltage (v1 - v2) for different types of circuit elems

• rmbr to respect passive convention → v1 - v2, v1 comes first because the polarity is pos at v1, meaning it has a higher elec potential.

supernode (and when you can make one)

steps to analyzing a circuit using voltage nodes

1. express all voltages (including sources) as equations with voltage nodes

2. create supernodes if possible

3. apply KCL, KVL, with special focus given to unknown variables wanted by the question

4. solve through system of equations