Phasor representation of signals from "summary" of Electronics - Circuits and Systems by Owen Bishop
The phasor representation of signals is a powerful tool used in the analysis and design of electronic circuits. It allows us to simplify the mathematical description of sinusoidal signals by combining both magnitude and phase information into a single complex number, known as a phasor. By representing sinusoidal signals as phasors, we can perform mathematical operations such as addition, subtraction, multiplication, and division more easily than working with the sinusoidal functions directly. This simplification arises from the fact that phasors behave like vectors, allowing us to use vector algebra to manipulate them. In the phasor representation, the magnitude of the phasor corresponds to the amplitude of the sinusoidal signal, while the angle of the phasor represents the phase shift of the signal relative to a reference. This way, we can represent a sinusoidal signal with a single complex number, rather than having to work with separate cosine and sine functions. P...
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