Peak Current-Mode Control: Simple Model-Introduction to Current-Mode Control
Introduction to the Course
Peak Current-Mode Control: Simple Model-Introduction to Peak Current-Mode Control
Introduction to Peak Current-Mode Control
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MATLAB and LTspice examples
Peak Current-Mode Control: Simple Model-Simple Model for Peak Current-Mode Controlled Converters
Simple Approximate Model
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Small-signal Model Based on Simple Approximation
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Design Example: Synchronous Buck POL Converter
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PI Compensator: Op-Amp Implementation
Peak Current-Mode Control: Simple Model-Stabilization Using Artificial Ramp
Oscillation for D > 0.5
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Stabilization with Addition of an Artificial Ramp
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Design Example Revisited: Inclusion of Artificial Ramp
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Peak Current-Mode Control: More Accurate Model-More Accurate Modeling of Peak Current-Mode Control
More Accurate Average Model
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Peak Current-Mode Control: More Accurate Model-Average Circuit Modeling and Simulations
Average Spice CPM Subcircuit
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Design Verification Using Average Circuit Simulations
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Peak Current-Mode Control: More Accurate Model-Small-signal AC modeling
Small-signal AC Equivalent Circuit Models
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Transfer Functions of CPM Controlled Converters
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Analysis Example: CPM Controlled Boost Converter
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Comparison of Frequency Responses of Duty-cycle and Current-mode Controlled Converters
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High-Frequency Effects in Peak Current-Mode Control-Motivation for High-Frequency Modeling of Current-Mode Controlled Converters
Motivation for Modeling of High-Frequency Effects
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High-Frequency Effects in Peak Current-Mode Control-Sampled-Data Modeling of Switching Converters
Pulse-Width Modulator as a Sampler
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Overview of Sampled-Data Systems
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Sampled-Data Modeling of Switching Converters
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High-Frequency Effects in Peak Current-Mode Control-High-Frequency Modeling of Peak Current-Mode Controlled Converters
Introduction to Sampled-Data Modeling of Peak Current-Mode Controlled Converters
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Development of Sampled-Data Model
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Frequency Responses of Sampled-Data Models
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1st Order Approximation
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2nd Order Approximation
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Summary and Conclusions
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Average Current-Mode Control-Average Current-Mode Control
Introduction to Average Current-Mode Control
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Transfer Functions of Average Current-mode Controlled Converters
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Average Current-Mode Control-Modeling and Design of Current and Voltage Control Loops
Design Example: ACM Controlled Boost dc-dc Converter
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Design Verification by Average Circuit Simulations
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Design of the Voltage Control Loop
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Design Example: ACM Controlled Boost dc Voltage Regulator
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