Steady rState Large Signal Analysisweb.eecs.utk.edu/.../ECE581/Fall2020/lectures/L41_slides.pdf ·...
Transcript of Steady rState Large Signal Analysisweb.eecs.utk.edu/.../ECE581/Fall2020/lectures/L41_slides.pdf ·...
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Steady State Large Signal Analysis
0In steady state,
Gives explicit solution for steady state operationof any switching circuit
Small Signal Modeling
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Small Signal Modeling
Small Signal Modeling
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Complete Small Signal ModelThis completes the small signal model
where
with in steady state
Example Results Ts/2
L. Corradini et. al. Digital Control of High Frequency Switched Mode Power Converters, Section 3.2
Ts/10
Averaged ModelDT Model
* Includes td=760ns ofdelay in feedback loop
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Inclusion of Delay
Averaged Model with DelayDT Model
L. Corradini et. al. Digital Control of High Frequency Switched Mode Power Converters, Section 3.2
†
Current Control
L. Corradini et. al. Digital Control of High Frequency Switched Mode Power Converters, Section 3.2
Averaged ModelDT Model
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Discrete Time Analysis: Results
• Valid for any switched circuit, as long as1. Inputs, , are constant or slowly varying2. All times are known3. Every subinterval can be described by a linear circuit
• Requires no dedicated analysis other than finding and• Decisively not a design oriented equation