How much do you know about Electrodynamic Wireless Power Transfer (EWPT) systems...
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Questions and Answers

What is the frequency range used in electrodynamic wireless power transfer (EWPT) systems?

  • Radio waves
  • High-frequency magnetic fields (>1 kHz)
  • Low-frequency magnetic fields (<1 kHz) (correct)
  • Microwaves

    • What is the critical coupling coefficient in EWPT devices?

  • The frequency difference between the transmitter and receiver devices
  • The efficiency of the electromechanical transduction scheme
  • The distance between the transmitter and receiver devices
  • The magnitude of power transfer between the transmitter and receiver devices (correct)

    • What are the three regimes of wireless power transfer between coupled resonators with the same resonant frequencies?

  • Over-coupled, critically coupled, under-coupled (correct)
  • High-coupled, medium-coupled, low-coupled
  • Strong-coupled, weak-coupled, moderate-coupled
  • Tightly-coupled, loosely-coupled, moderately-coupled

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