Quadripoles
Linear circuits - Parametric representation

A quadripole (1) is a part of a linear network with no independent sources, connected to the outside by two ports, each with a pair of terminals. In the most general case, the Q quadripole contains sources linked to quantities internal to the quadripole. In addition, the current entering one connection of an access must exit through the other connection of the same access. We define the four characteristic quantities of the quadrupole V₁, I₁, V₂ and I₂. These quantities are either the Laplace transforms or the complex quantities in the case of the sinusoidal regime and, throughout the following, V_k and I_k will refer respectively and indiscriminately...