Patent ID: 8330414

Claim:
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 configured to receives from the electronic device a full charge command indicating completion of recharging, wherein the charger shifts, upon receipt of the full charge command, to a charge stop state in which charging of the electronic device is not performed, wherein the transceiving section is further configured to intermittently transmit, 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, wherein the transceiving section is further configured to intermittently transmit, in the charge stop state, a charge restart check command for checking whether or not the electronic device requires recharging, wherein the transceiving section is capable of transmitting the load check signal separately from the charge restart check command, and wherein time intervals at which the charge restart check command is transmitted are larger than time intervals at which the load check signal is transmitted.