253-1-sinusoids-and-phasors-4

253-1-sinusoids-and-phasors-4 - such that the net impedance...

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EECE 253: Sinusoids and Phasors Slide 1.4.1 When analysing AC circuits, generally easier to analyze in the frequency domain than time domain. In the frequency domain, voltages and currents are represented by phasors while components are represented by impedances (or admittances). Ohm’s and Kirchhoff’s laws apply to AC circuits in the same way as DC circuits: Impedances in series (or parallel) combine the same way as resistances in series (or parallel). “Take Home Message” (KVL) 0 and (KCL), 0 , k k = = = V I ZI V 1 n 1 2 1 1 1 p n 2 1 s Z Z Z Z Z Z Z Z + + + = + + + = L L and
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