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Charging circuit and method, electronic device, and power supply unit

  • US 20110279078A1
  • Filed: 05/12/2011
  • Published: 11/17/2011
  • Est. Priority Date: 11/14/2008
  • Status: Abandoned Application
First Claim
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1. A charging circuit configured to charge a rechargeable battery, comprising:

  • an input unit configured to support a plurality of forms of connection to an external power supply and to receive electric power supplied from the external power supply;

    a charge unit configured to supply the rechargeable battery with the electric power supplied from the input unit;

    a detection unit configured to detect a charge level of the rechargeable battery; and

    a charge control unit configured to control the charge unit so as to prevent the rechargeable battery from being supplied with the electric power supplied from the input unit supplied with the electric power from the external power supply through one of the forms of connection to the external power supply, in response to the charge level detected by the detection unit exceeding a threshold corresponding to said one of the forms of connection.

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