lecture 3: steady-state converter...

Lecture 3: Steady-State Converter Analysis ECE 481: Power Electronics Prof. Daniel Costinett Department of Electrical Engineering and Computer Science University of Tennessee Knoxville Fall 2013

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Lecture 3: Steady-State Converter Analysis

ECE 481: Power ElectronicsProf. Daniel Costinett

Department of Electrical Engineering and Computer Science

University of Tennessee Knoxville

Fall 2013

DTs Ts

vL(t)

ic(t)

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Chapter 2: Summary

• Converter steady‐state (DC) solution obtained by averaging over a switching period

• Complete steady state solution involves:

– Small ripple approximation (capacitor voltage and inductor currents)

– Volt‐second and cap‐charge balance

– Inductor current and capacitor voltage ripples

• Based on (approx) constant slopes, except in 2nd order filters

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