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CHARGING CIRCUIT AND MOBILE TERMINAL

  • US 20170085108A1
  • Filed: 12/07/2016
  • Published: 03/23/2017
  • Est. Priority Date: 06/01/2015
  • Status: Active Grant
First Claim
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1. A charging circuit, configured to electrically couple a charging interface and a battery, the charging circuit comprising a first circuit, a magnetic coupling element, and a second circuit connected in series, whereinthe first circuit is configured to receive a first current from the charging interface and convert the first current to a second current with at least one of a changed magnitude and a changed direction;

  • the magnetic coupling element comprises a first coil and a second coil, the first coil connecting with the first circuit, the second coil connecting with the second circuit, the first coil and the second coil separated from each other to disconnect a direct-current (DC) path of the charging circuit;

    the magnetic coupling element is configured to transfer energy from the first coil to the second coil in an electromagnetic induction manner by utilizing the second current with the at least one of the changed magnitude and the changed direction to generate a third current; and

    the second circuit is configured to adjust the third current to a fourth current suitable for battery charging to charge the battery.

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