tvåport

A tvåport is a concept in electrical engineering referring to a circuit or device with two ports, meaning it has two distinct pairs of terminals where electrical current can enter or leave. Each port consists of two terminals, so a two-port network has a total of four terminals. These ports are typically considered the input and output of a system, allowing for analysis of how signals are transmitted or transformed.

The behavior of a two-port network can be described by a set of parameters that relate the voltages and currents at its ports. Common parameter sets include impedance parameters (z-parameters), admittance parameters (y-parameters), and hybrid parameters (h-parameters). These parameters allow engineers to characterize the network without needing to know the internal details of its components. For example, z-parameters relate the voltages at each port to the currents entering the other port.

Two-port network analysis is a fundamental tool for understanding and designing a wide range of electronic circuits. This includes amplifiers, filters, transmission lines, and passive networks. By treating complex circuits as interconnected two-port networks, engineers can simplify their analysis and predict circuit behavior more easily. The concept is essential for both theoretical understanding and practical application in electrical and electronic engineering disciplines.