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TEXAS INSTRUMENTS
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Understanding Boost Power
Stages in Switchmode
Power Supplies
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Application Report ________________________________________________________________________ Contents 1 Introduction 2 Boost Power Stage Steady-State Analysis 2.1Boost Steady-State Continuous Conduction Mode Analysis 2.2Boost Steady-State Discontinuous Conduction Mode Analysis
2.3Critical Inductance
3 Boost Power Stage Small Signal Modeling
3.1Boost Continuous Conduction Mode Small Signal Analysis
3.2Boost Discontinuous Conduction Mode Small-Signal Analysis
4 Variations of the Boost Power Stage
4.1Synchronous-Boost Power Stage
4.2Forward Converter Power Stage
5 Component Selection
5.1Output Capacitance 5.2Output Inductance
5.3Power Switch
5.4Catch Rectifier
6 Example Designs
7 Summary
8 References |