ECEN 215, Principles of Electrical EngineeringDr. Mina RahimianLecture# 14 Date: 10/1413To analyze ac circuits, first transform all circuit elements into phasor domain. Then treat the circuit as a resistive circuit.Ex. Use mesh analysis to find I.Ex. Find Io using source transformation.Ex. Calculate Vo(t), using superposition.Ex. Find the Thevenin equivalent circuit.Ex. Find Vs using phasor diagram.Ex. At what frequency is the series combination of a the inductor and capacitor shown below equivalent to an open circuit? At what frequency it is equivalent to a short circuit?Phasor diagramPhasor diagram shows the magnitude of each phasor quantity in the complex number plane.Phase angles are measured counter clockwise from positive real axis.Phasor diagrams give additional insight into the steady state operation of an ac
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