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PVMD Olindo Isabella Delft University of Technology Learning - PowerPoint PPT Presentation

Electrical components PVMD Olindo Isabella Delft University of Technology Learning objectives DC-DC converter 1. Introduction to electrical conversion 2. Electrical components Switch Inductor Flyback diode Smoothing


  1. Electrical components PVMD Olindo Isabella Delft University of Technology

  2. Learning objectives DC-DC converter 1. Introduction to electrical conversion 2. Electrical components • Switch • Inductor • Flyback diode • Smoothing capacitor 3. Topologies 4. Efficiency of a buck-boost converter DC-AC inverter

  3. Switch (GTO) Gate Turn-Off Thyristors Anode C P 10-100 kHz G N E Gate P D N G Cathode S

  4. Switch (GTO) Gate Turn-Off Thyristors C 10-100 kHz (IGBT) Insulated-Gate Bipolar Transistors G E D (MOSFET) Metal-Oxide-Semiconductor Field-Effect Transistor G S

  5. Inductor Stores energy in the magnetic field Electromotive force + Power Current supply -

  6. Inductor Electromotive force + Power supply -

  7. Flyback diode - + + Power Current Energized inductor supply - - +

  8. Flyback diode Arc across airgap - + + Power Current Energized inductor supply - - +

  9. Flyback diode Current + + - + Power Energized - supply inductor + - -

  10. Smoothing capacitor Smoothed signal Capacitor Load Pulsating signal

  11. Recap Capacitor Load + - Pulsating signal

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