ECOR 1032: Circuits LECTURE 10 Frequency Response

These flashcards cover key terms and concepts related to frequency response and filters in circuits and mechatronics.

Logarithm

The inverse function to exponentiation, representing the exponent to which a base must be raised to produce a given number.

Transfer Function

A mathematical representation, typically a ratio of output to input, that describes the behavior of a circuit with respect to frequency.

Bode Plot

A graphical representation of a system's transfer function that uses a logarithmic scale for frequency and decibels for magnitude.

Decibel (dB)

A logarithmic unit used to express the ratio of a value, such as power or voltage, relative to a reference level.

Passband

The range of frequencies that are permitted to pass through a filter with minimum attenuation.

Stopband

The frequencies that are not allowed to pass through the filter and are thus attenuated.

Cut-off Frequency (fc)

The frequency that separates the passband and stopband of a filter.

Bandwidth (BW)

The width of the passband of a filter, indicating the range of frequencies that can pass through.

Roll-off

The rate at which attenuation increases or decreases after reaching the cut-off frequency in a filter.

Active Filter

A filter circuit that includes an energy source and active components (such as operational amplifiers) in addition to passive components.

Passive Filter

A filter circuit that consists only of passive components (R, L, and C) without any active amplification.

Frequency Response

The response of a circuit to different frequencies of the input signal, indicating how its output varies with frequency.