Lecture 3: Steady-State Converter...
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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
Transcript of Lecture 3: Steady-State Converter...
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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
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DTs Ts
vL(t)
ic(t)
t
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