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4kW dsPIC33C Phase-Shifted Full-Bridge DC-DC Demonstration Application User Guide
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3
Theory of
Operation
Introduction
1
Demonstration Application Overview
2
Topology Selection Process
3
Theory of
Operation
3.1
Phase-Shifted Full-Bridge with Current Doubler Rectifier
3.2
PSFB-CDR Commutation Phases in Detail
3.3
ZVS Soft Switching (Zero-Volt-Switching)
3.4
Phase-Shifted Full-Bridge, Fixed Leg
3.5
Phase-Shifted Full-Bridge, Phase-Shifted Leg
3.6
PSFB-CDR Transformer Design
3.7
Current Doubler Rectifier Stage
3.8
Rectification (Synchronous vs Asynchronous)
3.9
Load Transients and Reverse Current Protection in Current Doubler Stage
4
Digital Control Implementation
5
Description of Functional Blocks
6
Plug/Drop-In Modules
7
Sockets
8
Appendix A. Schematics
9
Appendix B. Assembly
10
Appendix C. Layout
11
Appendix D. Bill of Materials
Microchip Information
3
Theory of
Operation
