CONTACTLESS BATTERY CHARGER, ELECTRONIC DEVICE, BATTERY PACK, AND CONTACTLESS CHARGING SYSTEM
First Claim
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.
4 Assignments
0 Petitions
Accused Products
Abstract
To provide a contactless charging system that provides superior usability and allows for a reduction in power consumption and a safety measure, as well as to provide an electronic device, a contactless charger, and a battery pack for an electronic device which are used in the system.
A contactless charging system is made up of a mobile phone 100 that is an electronic device and a contactless charger 200 that recharges the mobile phone 100 in a contactless manner. The mobile phone 100 transmits a full charge command indicating completion of charge. Upon receipt of the full charge command, the contactless charger 200 shifts to a charge stop state in which charge of the mobile phone 100 is not performed. In the charge stop state, the contactless charger 200 generates a load check signal for checking whether or not the mobile phone 100 is placed in the contactless charger 200 in a rechargeable state, and transmits the signal. Further, the contactless charger 200 also generates a charge restart check command for checking whether or not the mobile phone 100 requests recharge in a charge stop state, and transmits the command.
101 Citations
14 Claims
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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:
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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, and wherein time intervals at which the charge restart check command is generated are larger than time intervals at which the load check signal is generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A battery pack attachable to an electronic device that uses, as a power source, a secondary battery which can be charged by a contactless charger for effecting charge in a contactless fashion,
wherein the electronic device includes a control section that generates, in response to completion of charge of the secondary battery, a full charge command indicating that the contactless charger is shifted to a charge stop state in which the electronic device is not charged, and wherein the battery pack includes: -
the secondary battery; and a coil for transmitting the full charge command to the contactless charger. - View Dependent Claims (12)
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13. A contactless charging system including an electronic device and a contactless charger for charging the electronic device in a contactless fashion, wherein
the electronic device transmits a full charge command indicating that charge of the electronic device is completed; -
the contactless charger shifts to a charge stop state in which charge of the electronic device is not performed, upon receipt of the full charge command; the contactless charger 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 state where the electronic device can be recharged, and transmits the load check signal; the contactless charger further generates, in the charge stop state, a charge restart check command for checking whether or not the electronic device requests recharge, and transmits the command; and wherein 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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14-15. -15. (canceled)
Specification