This chapter presents basic concept of describing functions, calculation of describing functions of common nonlinear elements and how to use describing functions to predict the existence of limit cycles.

Chapter Contents:

• 3.1 Fundamentals
• 3.2 Describing functions for common nonlinear components
• 3.3 Describing function analysis of nonlinear systems

Inspec keywords: nonlinear control systems; describing functions; control system analysis; limit cycles

Other keywords: nonlinear system analysis; nonlinear elements; describing function analysis; limit cycles

Subjects: Nonlinear control systems; Stability in control theory; Control system analysis and synthesis methods