Available active power of the N-port AC Thévenin source: A simple behavioral derivation

The available active power of a circuit component under AC operation is defined from the behavioral point of view. Then, the complete investigation of the N-port AC Thévenin source is carried out using the simplest tools of linear algebra. Finally, the diagrams (normalized active power delivered and efficiency vs normalized current) pertaining to the one-port AC Thévenin source with finite available active power are presented, in case of both real and complex parameters values.