1 / 22

BioMedical Instrumentation Lab., BME, Yonsei University

2010. 12. 28. Switching Mode Power Supplies (SMPS). Power Supply CookBook (2 nd ) – Marty Brown. 윤 자 웅. BioMedical Instrumentation Lab., BME, Yonsei University . Contents. Introduction of PWM SMPS The Fundamentals of PWM SMPS The Building – Block Approach Topologies of SMPS

mikasi
Télécharger la présentation

BioMedical Instrumentation Lab., BME, Yonsei University

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2010. 12. 28 Switching Mode Power Supplies (SMPS) Power Supply CookBook (2nd) – Marty Brown 윤 자 웅 BioMedical Instrumentation Lab., BME, Yonsei University

  2. Contents • Introduction of PWM SMPS • The Fundamentals of PWM SMPS • The Building – Block Approach • Topologies of SMPS • “Black-Box”test Method BioMedical Instrumentation Lab., BME, Yonsei University

  3. Intro. SMPS • Pulse Width Modulated (PWM) Power Supplies have been around for a long time. • However, it used from mid-1970s broadly. • Advantages : i) Smaller in Size ii) More Efficient • Disadvantages : i) More difficult to Design ii) Radiate more Electromagnetic Interference (EMI) BioMedical Instrumentation Lab., BME, Yonsei University

  4. The Fundamentals. • Saturation & Cutoff in Power TRs. :ㅣi) Low-V / High-I ii) High-V / Low-I • “Chopping”&“Duty Ratio” • Two Major Type of SMPS 1) Forward-Mode Convertor 2) Boost-Mode Convertor BioMedical Instrumentation Lab., BME, Yonsei University

  5. The Building – Block Approach - Design Flow First, Produce a very good “Paper Design” If you have a good library book or Data Sheet, it will be done within 8 Working hours. BioMedical Instrumentation Lab., BME, Yonsei University

  6. The Building – Block Approach - Functional Block Diagram BioMedical Instrumentation Lab., BME, Yonsei University

  7. Which Topology? • What is the Topology? • A Major decision is Which basic Topology to Use! • Each Topology has its relative merit. • The best choice provides the best performance at the needed cost BioMedical Instrumentation Lab., BME, Yonsei University

  8. Which Topology? - Comparison of PWM SMPS Topologies 500 BioMedical Instrumentation Lab., BME, Yonsei University

  9. Topologies • Buck Converter • Boost Converter • Buck-Boost Converter • Fly-Back Converter • 1T Forward Converter • Push – Pull Converter • Half Bridge Converter • Full Bridge Converter BioMedical Instrumentation Lab., BME, Yonsei University

  10. Topologies - Buck (Step Down) Converter Buck : 날뛰다 , 걷잡을수 없다 BioMedical Instrumentation Lab., BME, Yonsei University

  11. Topologies - Boost (Step up) Converter BioMedical Instrumentation Lab., BME, Yonsei University

  12. Topologies : Buck-Boost Converter BioMedical Instrumentation Lab., BME, Yonsei University

  13. Topologies : Fly-Back Converter BioMedical Instrumentation Lab., BME, Yonsei University

  14. Topologies : 1T – Forward Converter BioMedical Instrumentation Lab., BME, Yonsei University

  15. Topologies : Push-Pull Converter BioMedical Instrumentation Lab., BME, Yonsei University

  16. Topologies : Half-Bridge Converter BioMedical Instrumentation Lab., BME, Yonsei University

  17. Topologies : Full-Bridge Converter BioMedical Instrumentation Lab., BME, Yonsei University

  18. The “Black-Box”Considerations • What is the “Black-Block”test ? • This allows the designer to determine whether the choice of topology is correct BioMedical Instrumentation Lab., BME, Yonsei University

  19. The “Black-Block”Considerations - Sequence • Output Power : • Input Power : • Average Input Currents : • Input Peak Current ; • Selection the Power Switches and Rectifiers (*1) • Estimation Component (Optional) (*2) BioMedical Instrumentation Lab., BME, Yonsei University

  20. (*1)Selection the Power Switches and Rectifiers BioMedical Instrumentation Lab., BME, Yonsei University

  21. (*2) Estimation Component (Optional) BioMedical Instrumentation Lab., BME, Yonsei University

  22. Epilogue – Q&A Thank you for your attention ! BioMedical Instrumentation Lab., BME, Yonsei University

More Related