Method and apparatus for controlling power supply

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide a method and apparatus for controlling power supply.
According to one aspect of the present invention, there is provided a power supply controlling apparatus comprising: a battery being chargeable; supply means for supplying a trickle charge current to the battery; and control means for sampling voltages of the battery and the supply means at predetermined times during trickle charge of the battery and for causing the supply means to stop supply of the trickle charge current to the battery in accordance with a differential voltage value representing a difference between the sampled voltages.
According to another aspect of the present invention, there is provided a power supply controlling method comprising the steps of: determining whether or not a battery is incorporated and whether or not an adapter for supplying a trickle charge current is connected, the battery being chargeable; starting trickle charge of the battery when the battery is incorporated and the adapter is connected; sampling voltages of the battery and the adapter at predetermined time during the trickle charge of the battery; and causing the adapter to stop supply of the trickle charge current to the battery in accordance with a differential voltage representing a difference between the sampled voltages.
The accompanying drawing, which is incorporated in and constitutes a part of the specification, illustrates a presently preferred embodiment of the invention and, together with the general description given above and the detailed description of the preferred embodiment given below, serves to explain the principles of the invention.