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ACTIVE RECTIFIER AND WIRELESS POWER RECEIVING APPARATUS USING THE SAME THAT CAN REDUCE REVERSE CURRENT LEAKAGE

  • US 20150263534A1
  • Filed: 03/13/2015
  • Published: 09/17/2015
  • Est. Priority Date: 03/14/2014
  • Status: Active Grant
First Claim
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1. An active rectifier, comprising:

  • first and fourth switches turned on while a voltage of an alternating current (AC) input is negative, and configured to apply a current of the AC input to a rectifying capacitor;

    second and third switches turned on while a voltage of the AC input is positive, and configured to apply a current of the AC input to the rectifying capacitor; and

    a synchronization control unit configured to compensate for a delay time of the comparator for detecting zero-crossing of the AC input so as to switch the first to fourth switches.

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