253-1-sinusoids-and-phasors-3 - Impedance You know how to...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
EECE 253: Sinusoids and Phasors Slide 1.3.1 Impedance • You know how to compute equivalent resistance for resistive networks, equivalent capacitance for capacitive networks and equivalent inductance for inductive networks. • We wish to, more generally, take a linear network of passive components, no matter how complicated, and compute an equivalent impedance , a measure of the opposition exhibited by the network to the flow of sinusoidal current.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EECE 253: Sinusoids and Phasors Slide 1.3.2 Impedance and Admittance The impedance (denoted Z , measured in ) of a 2-terminal network is the ratio of phasor voltage to phasor current: I V Z = The admittance (denoted Y , measured in S) of a 2-terminal network is the ratio of phasor current to phasor voltage: Ohm’s law in phasor domain (Ohms) (Siemens) V=ZI V I Z Y = = 1
Background image of page 2
EECE 253: Sinusoids and Phasors Slide 1.3.3 Impedance and Admittance R 1 = Y L j ω 1 = Y C j = Y C L R Admittance Impedance Element Impedances and admittances of passive elements R = Z L j = Z C j 1 = Z
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/20/2009 for the course PHYS physics 10 taught by Professor Goatman during the Spring '08 term at The University of British Columbia.

Page1 / 10

253-1-sinusoids-and-phasors-3 - Impedance You know how to...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online