ECE212H1 Chapter Notes - Chapter 14.1-14.4: Phasor, Resistance 2, Phase Angle
19 Nov 2018
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Complete description of sinusoidal steady-state behavior of circuit as a function of frequency the variation in its behavior with change in signal frequency variation of the gain and phase with frequency. Plot of circuit"s transfer function versus with from = . Transfer function h( frequency-dependent ratio of a phasor output y( ) (an element voltage or current) to a phasor input x( ) (source voltage or current) Express in terms of its numerator polynomial n( ) and denominator polynomial d( ): Roots of n( ) = 0 zeros of h( ) zero value of the function. Roots of d( ) = 0 poles of h( ) value for which the function is infinite. Properties of logarithms: bels = measure the power gain g debibel (db) = 1 / 10 of bel. The logarithms of the reciprocal of a quantity is simply negative the logarithm of that quantity.
