11
•Transform a sinusoid to and from the time domain to the phasor domain:
(time domain) (phasor domain)
9.3 Phasor
(4)
•Amplitude and phase difference are two principal concerns in the study of voltage and current
sinusoids.
•Phasor will be defined from the cosine function in all our proceeding study. If a voltage or
current expression is in the form of a sine, it will be changed to a cosine by subtracting from the phase.