litz wire - web.eecs.utk.edu
TRANSCRIPT
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Litz Wire
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Chapter 15: Transformer Design
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Transformer Design Constraints
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Minimizing Total Loss
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Calculation of Total Loss
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The Kgfe Method
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2
2
nWKA Au
wk
11 nnnn k
k
Verify Bmax < Bsat
The Kgfe Method
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Switching Frequency Vs. XF Size
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FURTHER TOPICS IN POWER ELECTRONICS
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Practical Issues in PE: Parasitics
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Decoupling
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Real Switching Waveforms
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Input Filter Design
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Damped Input Filters
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Current Programmed Control
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Buck Converter With CPM
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Digital Control of SMPS
• Digital Control can improve noise immunity, element variation, size/cost
• Advanced tuning algorithms can be included to change compensator dynamically or over lifetime
• Can model power stage without averaging assumptions
• Need to include sampling, delay, saturation, and quantization effects