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OVER-VOLTAGE PROTECTION DEVICE FOR RESONANT WIRELESS POWER TRANSMISSION DEVICE AND METHOD FOR CONTROLLING THE OVER-VOLTAGE PROTECTION DEVICE

  • US 20130176652A1
  • Filed: 12/20/2012
  • Published: 07/11/2013
  • Est. Priority Date: 01/11/2012
  • Status: Active Grant
First Claim
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1. An over-voltage protection device for a resonant wireless power transmission device, the over-voltage protection device comprising:

  • an amplifier for amplifying a transmission signal;

    a resonance signal generator for generating a wireless resonance signal according to the transmission signal amplified by the amplifier;

    a voltage detector for sensing a voltage of the wireless resonance signal generated by the resonance signal generator; and

    a controller for monitoring the voltage detected by the voltage detector to determine whether the voltage repetitively increases and decreases with periodicity when the voltage is greater than a reference voltage and controlling the amplifier to decrease an output of the transmission device by a value according to a result of the determination.

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