CHARGING DEVICE CONFIGURED TO REDUCE POWER CONSUMPTION DURING NON-CHARGING PERIOD

摘要

A charging device includes a first connection portion, a charge controller, a power supply circuit and a second connection portion. A secondary battery is connectable to the first connection portion. The charge controller is configured to control selected one of a charging voltage and a charging current. The power supply circuit is configured to supply the charge controller with power. The second connection portion is connectable to external power supply. Supplying power is halted to place the charge controller in a power cutoff state during a period of time from a time when the external power supply is connected to the second connection portion to a time when the secondary battery is connected to the first connection portion and also during a period of time from a time when the secondary battery has become fully charged to a time when the secondary battery is disconnected from the first connection portion.

主权项

1. A charging device comprising:
a first connection portion to which a secondary battery is connectable; a charge controller configured to control selected one of a charging voltage and a charging current and apply the controlled charging voltage or the controlled charging current to the secondary battery through the first connection portion; a power supply circuit configured to supply the charge controller with power for driving the charge controller; and a second connection portion to which an external power supply is connectable, wherein supplying power from the power supply circuit to the charge controller is halted to place the charge controller in a power cutoff state during a period of time from a time when the external power supply is connected to the second connection portion to a time when the secondary battery is connected to the first connection portion and also during a period of time from a time when the secondary battery has become fully charged to a time when the secondary battery is disconnected from the first connection portion.