Generators info

Phase response is the relationship between the phase of a sinusoidal input and an output signal passing through any device which accepts an input and produces an output signal such as an amplifier or a filter.

Amplifiers, filters, and other devices, are often categorized by their amplitude and/or phase response. The amplitude response, is the ratio of output amplitude to input, usually as a function of frequency.
Similar, phase response is phase of the output, with the input as a reference. The input is define as zero phase. Phase response is not limited to zero degrees to 360 degrees, as phase can accumulate beyond 360.