Charging System, Electronic Apparatus, Charge Control Method, and Program

摘要

A charging system, electronic apparatus, charge control method, and program applicable also to a movable-coil-type charging system are provided. A power receiving unit includes a charging section charging a secondary battery by using current induced in a power receiving coil; a charge state determining section monitoring a charge state of the secondary battery to determine whether charging of the secondary battery is required to be stopped; a command transmitting section stopping an operation of charging when determined that charging of the secondary battery is required to be stopped and transmitting a command to a power transmitting unit; a recharge determining section determining, while charging of the secondary battery is stopped, whether the secondary battery requires recharging; and a coupling releasing section temporarily releasing coupling of the power receiving coil and a power transmitting coil by electromagnetic induction when determined that the secondary battery requires recharging.

主权项

1. A charging system comprising:
a power transmitting unit including a power transmitting coil and a power receiving unit including a power receiving coil that can be coupled to the power transmitting coil by electromagnetic induction, the power transmitting unit including power transmitting section driving the power transmitting coil when the power receiving coil is positioned near the power transmitting coil and transmitting electric power to the power receiving coil, command receiving section receiving a predetermined command transmitted from the power receiving unit, and stopping section stopping a power transmitting operation of the power transmitting section when the predetermined command is received, and the power receiving unit including charging section charging a secondary battery by using a current induced in the power receiving coil, charge state determining section monitoring a charge state of the secondary battery to determine whether the secondary battery is in a state that charging of the secondary battery is required to be stopped, command transmitting section stopping the charging section from performing an operation of charging the secondary battery when it is determined by the charge state determining section that the secondary battery is in a state that charging of the secondary battery is required to be stopped and transmitting the predetermined command to the power transmitting unit, recharge determining section determining, while charging of the secondary battery is being stopped, whether the secondary battery is in a state requiring recharging, and coupling releasing section temporarily releasing coupling of the power receiving coil and the power transmitting coil by electromagnetic induction when it is determined by the recharge determining section that the secondary battery is in the state requiring recharging.