Wk_14_Lecture_1 - BME311 Roadmap DC Circuits (Ch.1-8) AC...

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1 BME311 Roadmap • DC Circuits (Ch.1-8) • AC Circuits (Ch.9-10) – Transform the circuit to phasor/frequency domain – DC circuit laws still holds • Ohm’s and Kirchhoff’s Law • Superposition, and source transformations • Nodal analysis mesh analysis 1 BME 311 Network Theory John X.J. Zhang, UT Austin Nodal analysis, mesh analysis • Thevenin’s theorem, Norton’s Theorem – Transform the circuit back to time domain Sinusoidal Steady-State Analysis Sinusoids and Phasors Time-domain v(t)=V m cos( t+ ) Instantaneous/time Phasor-domain V =V m  F( t t Time dependent Real term Frequency (constant) Not time dependent Complex term 2 BME 311 Network Theory John X.J. Zhang, UT Austin V m , , t + , , T, f Rec./polar/exp. Forms Euler’s identity
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2 * 3 BME 311 Network Theory John X.J. Zhang, UT Austin * 4 BME 311 Network Theory John X.J. Zhang, UT Austin
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3 v(t)=V m cos( t+ ) V =V m  v(t)=V m sin( t+ ) ?
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Wk_14_Lecture_1 - BME311 Roadmap DC Circuits (Ch.1-8) AC...

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