Charger and charging system

Charger and charging system

  • CN 101,989,758 A
  • Filed: 07/28/2010
  • Published: 03/23/2011
  • Est. Priority Date: 07/30/2009
  • Status: Active Grant
First Claim
Patent Images

1. a charger sends electric power by utilizing electromagnetic induction to electronic equipment, thereby in the noncontact mode secondary cell that is built in this electronic equipment is charged, and wherein, this charger has:

  • Battery;

    Connecting portion, it connects external power source;

    The power supply switching part, it externally under power supply and the situation that above-mentioned connecting portion is connected, exports the electric power of this external power source, externally power supply not with situation that above-mentioned connecting portion is connected under, export the electric power of above-mentioned battery;

    Coil, it is used to utilize electromagnetic induction to send electric power;

    Drive circuit, it utilizes the output of above-mentioned power supply switching part to drive above-mentioned coil;

    Telecommunication circuit, it obtains the model information of above-mentioned electronic equipment;

    Memory, its electric power transmitting efficiency is the storage that is mapped of the drive condition of maximum above-mentioned coil and the information that is used for determining above-mentioned electronic equipment or its power supply;

    AndControl circuit, it is exported at above-mentioned power supply switching part under the situation of electric power of above-mentioned battery, reads the drive condition of the above-mentioned coil corresponding with above-mentioned information from above-mentioned memory, according to the above-mentioned drive circuit of this drive condition setting of reading and drive above-mentioned coil.

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