Circuit Theory-2 #27 | Two-Port Networks: z and y Parameters

Instructor: Dr. Süleyman Burak ÇELİK

In this Circuit Theory-2 lesson we introduce two-port networks and the two most useful parameter descriptions for linear circuits: z parameters and y parameters. You will learn: - Why a two-port is a reusable block with two terminal pairs - How the port voltage and current reference directions are defined - How z parameters use currents to predict voltages - Why z parameters are measured with open-circuit tests - How y parameters use voltages to predict currents - Why y parameters are measured with short-circuit tests - When z parameters are more convenient than y parameters - How reciprocity and symmetry appear in two-port parameter matrices - A practical workflow for choosing a model, measuring the parameters, and reusing the block Timestamps: 00:00 Two-port networks 00:03 From one-port equivalents to reusable blocks 00:25 Port variables and sign convention 00:45 z parameters: voltages from currents 01:04 Measure z with open-circuit tests 01:26 y parameters: currents from voltages 01:45 Measure y with short-circuit tests 02:07 Choose the model that fits the problem 02:27 Reciprocity and symmetry checks 02:52 Two-port workflow 03:15 Summary Next lesson: transmission parameters and cascaded two-port networks. Part of the Circuit Theory-2 playlist by AcEdumy.