发明名称 |
Contactless battery charger, electronic device, battery pack, and contactless charging system |
摘要 |
A contactless charging system is made up of an electronic device and a contactless charger 200 that recharges the electronic device in a contactless manner. The electronic device transmits a full charge command indicating completion of charge. Upon receipt of the full charge command, the contactless charger shifts to a charge stop state in which charge of the electronic device is not performed. In the charge stop state, the contactless charger generates a load check signal for checking whether or not the electronic device is placed in the contactless charger in a rechargeable state, and transmits the signal. Further, the contactless charger also generates a charge restart check command for checking whether or not the electronic device requests recharge in a charge stop state, and transmits the command. |
申请公布号 |
US9407109(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
US201213667839 |
申请日期 |
2012.11.02 |
申请人 |
Panasonic Intellectual Property Management Co., Ltd. |
发明人 |
Takahashi Hiroyuki;Oku Hiroyuki;Oshimi Masanori |
分类号 |
H02J7/04;H02J7/02;H01M10/44 |
主分类号 |
H02J7/04 |
代理机构 |
Seed IP Law Group PLLC |
代理人 |
Seed IP Law Group PLLC |
主权项 |
1. A contact-less charger which, in operation, charges, in a contact-less manner, an electronic device using a secondary battery as a power source, the contact-less charger comprising:
a driver circuit; a controller coupled to the driver circuit, wherein the controller, in operation, controls the driver circuit to intermittently transmit a load check signal for checking whether or not the electronic device is placed on the charger, while the contact-less charger is in a charge stop state in which the charger does not charge the electronic device; wherein the controller checks a load in response to the load check signal, and controls the driver circuit to intermittently transmit an authentication request command for requesting an authentication of the electronic device; wherein, in a case that the controller authenticates the electronic device based on a signal received in response to the transmission of the authentication request command, the controller controls the driver circuit to start charging to the electronic device; and wherein a transmission interval of the load check signal is larger than a transmission interval of the authentication request command. |
地址 |
Osaka JP |