CONTACTLESS BATTERY CHARGER, ELECTRONIC DEVICE, BATTERY PACK, AND CONTACTLESS CHARGING SYSTEM

  • US 20100066305A1
  • Filed: 11/08/2006
  • Published: 03/18/2010
  • Est. Priority Date: 11/08/2006
  • Status: Active Grant
First Claim
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1. A contactless charger for charging, in a contactless manner, an electronic device using a secondary battery as a power source, the charger comprising:

  • a transceiving section that receives from the electronic device a full charge command indicating completion of recharge; and

    a control section that shifts, upon receipt of the full charge command, the contactless charger to a charge stop state in which charge of the electronic device is not performed,wherein the control section intermittently generates, in the charge stop state, a load check signal for checking whether or not the electronic device is placed on the contactless charger in a rechargeable manner, and the transceiving section sends the load check signal,wherein the control section further intermittently generates, in the charge stop state, a charge restart check command for checking whether or not the electronic device requires recharge, and the transceiving section transmits the charge restart check command,wherein the control section intermittently generates the load check signal and the charge restart check command, andwherein time intervals at which the charge restart check command is generated are larger than time intervals at which the load check signal is generated.

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