passivityrelated

Passivityrelated is an adjective used in scholarly writing to describe properties, criteria, or results that pertain to the concept of passivity. Passivity is a property of a system, device, or material that does not generate net energy over a closed cycle, and in many contexts implies an energy inequality that bounds input and stored or dissipated energy. The term is sometimes written passivity-related in more conventional English.

In electrical engineering and control theory, passivity is a common model assumption for circuits and dynamical systems. Passivity-related topics include passive network elements, dissipative systems, and energy-based stability criteria. A passive system satisfies an energy-dbalance inequality, where input power does not exceed the rate of change of stored energy, and interconnection of passive systems tends to be stable. Passivity-related methods include passivity-based control, which uses energy shaping and damping injection to guarantee robust stability.

In other domains, passivity-related analyses appear in physics, materials science, and signal processing. For example, passive materials or sensors respond without active actuation, whereas passive network analysis uses concepts such as positive realness to characterize feasible energy transfer. In numerical methods, designing passivity-preserving discretizations helps maintain stability and physical fidelity when simulating continuous-time systems.

See also: passivity, dissipativity, passive circuit, passivity-based control.