ENB205 Lecture Notes - Lecture 5: Rl Circuit, Rlc Circuit, Complex Differential Form
Document Summary
Frequency response of a circuit is the changes in its behaviour with change in signal frequency. Frequency respones are important in some applications such as communication and electric filters. Frequency response of a circuit can be represented as: It indicates the relationship between input and output of a system, be it electrical or mechanical. It is usually defined as the ratio of output to input. In mechanical systems, input/output could be force, energy, heat etc. In electrical systems, input/output are usually voltage, current or power. Dc circuit with resistor network. e. g. circuit with time-varying components. It is more of our interests as the input of different frequencies may induce different response from the system. In physical terms, it depends on the number of energy-storage components in the system (i. e. l and c in circuits). We only look at 1st and 2nd order systems. Frequency response: how the system behaves under a wide range of input frequencies.
