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Power PSoC 101: Intro to Power Converters

Power PSoC 101: Intro to Power Converters. Section 1: Power Converter Overview. Section 2: Power Converter Circuit Elements. Section 3: Operating Principle. Section 4: Converter Topologies. Section 5: Converter Transfer Functions. Section 6: Control Techniques . Course Outline.

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Power PSoC 101: Intro to Power Converters

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  1. Power PSoC 101: Intro to Power Converters

  2. Section 1:Power Converter Overview Section 2:Power Converter Circuit Elements Section 3:Operating Principle Section 4:Converter Topologies Section 5:Converter Transfer Functions Section 6:Control Techniques Course Outline

  3. Define the functional requirements for a power converter Identify power converter variants and their constituents Explain the principle of operation of power converters List basic topologies and their transfer functions Explain the concept of commonly used control techniques Course Objectives At the end of this course, you should be able to:

  4. 1 Power Converter Overview

  5. What is Power Converter? Apowerconverterisanelectroniccircuitthatprocessespowerinitsavailableformandconvertsittotherequiredvoltage/powerlevelsthatthedevicesspecificallydemand

  6. Common Converter Characteristics • Voltage regulation • Efficiency • Noise, Distortion, Power Factor • Communications interface • Size • Safety • Protection

  7. 2 Power Converter Circuit Elements Power Converter Circuit Elements

  8. Power Converter Components Semiconductor Switch • Unidirectional • Bidirectional

  9. Power Converter Components

  10. Steady state average voltage across the inductor equals zero. Power Converter Components • Inductor • Lossless reactive circuit element • Stores energy in its magnetic field • Instantaneous voltage proportional to rate of change of current

  11. Power Converter Components • Capacitor • Lossless reactive circuit element • Stores energy in its dielectric field • Instantaneous current proportional to rate of change of voltage • Steady state average current through the capacitor equals zero.

  12. 3 Operating Principle Operating Principle

  13. Operating Principle

  14. 4 Converter Topologies

  15. Power Converter Topologies Buck: Vo <= Vi Boost: Vo >= Vi Buck-boost: Vo <=> -Vi

  16. 5 Converter Transfer Functions • Converter Transfer Functions

  17. Steady State Transfer Function - Buck Vo = D.Vi

  18. Steady State Transfer Function - Boost Vo = Vi/(1-D)

  19. Steady State Transfer Function – Buck-Boost Vo = -D.Vi/(1-D)

  20. 6 Control Techniques • Control Techniques

  21. Control Techniques – Voltage Mode

  22. Control Techniques – Peak Current Mode

  23. Overview to power converters and its common characteristics basic circuit elements used in a power converter operating principle of converters 3 basic topologies the buck, boost and buck-boost state transfer functions for the basic converter types Peak Current and voltage mode techniques Course Summary

  24. On-Demand Training • Hands-On Workshops • Webinars • Learn More about PSoC hardware design tools and PSoC-based solutions at www.cypress.com/psoc NOW www.cypress.com/training Technical Resources www.cypress.com/designresources Technical Reference Manual Datasheets/Application Notes Reference Designs Support www.cypress.com/support Online Support CYPros Phone Hotline, (425) 787-4814 Next Steps

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