by Neil E. Cotter

Research Assistant Professor

Last Updated: 7/16/06

 

 

Circuits

Basic DC quantities

Current

Voltage

Power

Basic DC circuits

Passive sign convention

Example 1 | (pdf)

Example 2 | (pdf)

Sources: v, i, independent, dependent

Example 1 (pdf)

Kirchhoff's laws

Current sums at nodes | (pdf)

Voltage loops | (pdf)

Writing v and i eqns

Example 1 | (pdf)

Example 2 | (pdf)

Solving circuits

Example 1 (pdf)

Example 2 (pdf)

Ohm's law

Statement

Series resistors

Parallel resistors

Resistor networks

Example 1 (pdf)

v and i dividers

Voltage divider

Current divider

Example (pdf)

Consistency checks

Node-voltage method

Theory

Current summations

Super-nodes

Dependent sources

Example 1 (pdf)

Example 2 (pdf)

Example 3 (pdf) Matlab (txt)

Example 4 (pdf)

Mesh-current method

Theory

Voltage loops

Super-meshes

Dependent sources

Example 1 (pdf)

Example 2 (pdf)

Example 3 (pdf)

Thevenin equivalent

Thevenin equivalent circuit

Norton equivalent circuit

Thevenin<->Norton xform

Example (pdf)

Deriving Thevenin equivalent

vThev = vout open circuit

RThev derivation

R seen from output

vThev/ishort circuit

1V/iinto circuit

Example (pdf)

Max power xfer

Example (pdf)