DC Load Power Computation

Given the Thevenin Voltage, Thevenin Resistance, and Load Resistance, this script will calculate the power dissipated by the load resistance connected to a Thevenin equivalent circuit. It will also compute for the power transfer efficiency.
Enter the Thevenin Voltage (Vth) = volts
Enter the Thevenin Resistance (Rth) = ohms
Enter the Load Resistance (Rload) = ohms

The current is = amperes
The power dissipated at the load (Pload) is = watts
The power transfer efficiency is = %

Norton to Thevenin Converter

The calculation below helps transform a practical current source into a practical voltage source.
Enter the Norton Current (In) = amperes
Enter the Norton Resistance (Rn) = ohms

The Thevenin Voltage (Vth) is = volts
The Thevenin Resistance (Rth) is = ohms

Thevenin to Norton Converter

The calculation below helps transform a practical voltage source into a practical current source.
Enter the Thevenin Voltage (Vth) = volts
Enter the Thevenin Resistance (Rth) = ohms

The Norton Current (In) is = amperes
The Norton Resistance (Rn) is = ohms

Question: What does a "dead circuit" in Thevenin's and Norton's theorem mean?


Answer:

A "dead circuit" means that all independent sources have been zeroed out. Zeroing out a source means that independent voltage sources are converted to short circuits while independent current sources are converted to open circuits.

Question: What technique is applied to convert a Thevenin equivalent circuit into a Norton equivalent circuit or vice versa?


Answer:

Source transformation is applied. A voltage source in series with an internal resistance is equivalent to a current source in parallel with the same internal resistance.

V thevenin = (I norton) x (R internal)
I norton = (V thevenin) / (R internal)
R internal = (V thevenin) / (I norton)