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MICROCHIP DSPIC最新AC-DC解决方案

Table of Contents
Preface ........................................................................................................................... 1
Chapter 1. Introduction
1.1 System Specifications  .................................................................................... 7
1.2 Block Diagram  ................................................................................................ 8
1.3 Multi-Phase Synchronous Buck Converter ................................................... 19
1.4 Listing of I/O Signals for Each Block, Type of Signal and
Expected Signal Levels  .......................................................................... 21
Chapter 2. Hardware Design
2.1 PFC Boost Converter  ................................................................................... 25
2.2 Full-Bridge ZVT Converter  ........................................................................... 30
2.3 Single-Phase Synchronous Buck Converter  ................................................ 41
2.4 Three-Phase Synchronous Buck Converter  ................................................. 43
2.5 Auxiliary Power Supply ................................................................................. 45
Chapter 3. Software Design
3.1 Overview  ...................................................................................................... 51
3.2 Structure of the Control Software  ................................................................. 52
3.3 Primary Side Control Software (PFC_ZVT) .................................................. 54
3.4 Secondary Side Control Software (DC_DC)  ................................................ 61
3.5 Auxiliary Software Routines  ......................................................................... 64
Chapter 4. System Operation
4.1 System Setup  ............................................................................................... 67
4.2 System Operation ......................................................................................... 72
Appendix A. Board Layouts and Schematics
A.1 Introduction  .................................................................................................. 75
A.2 SMPS AC/DC Reference Design Layout  ..................................................... 75
A.3 SMPS AC/DC Reference Design Schematics  ............................................. 77
Appendix B. Test Results
B.1 Soft-Start and Overshoot  ............................................................................. 93
B.2 Dynamic Load Response  ............................................................................. 95
B.3 Output Voltage Ripple .................................................................................. 99
B.4 Input Current  .............................................................................................. 101
B.5 Efficiency .................................................................................................... 103
B.6 Input Current Total Harmonic Distortion (ITHD) ......................................... 103
B.7 Power Factor .............................................................................................. 103
B.8 Test Results Table  ..................................................................................... 104
Appendix C. References
Index ...........................................................................................................................111
Worldwide Sales and Service  ...................................................................................114
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veloce
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2
2009-04-02 13:50
自已踩一下
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green157
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2009-04-02 15:14
@veloce
自已踩一下
借贵地推销下自己,呵呵
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jacky_lin
LV.2
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2010-04-24 11:40
请问您有代码吗?请发给我:lyw149291535@163.com  本人对数字电源很感兴趣主要是反馈算法
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LV.1
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2010-04-28 09:08
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