| 摘要 |
In a power supply system in which a load is connected to a battery, the battery is efficiently charged without degrading the characteristics of the load. When a load that deteriorates in characteristics if a voltage exceeding the rated voltage of the load is applied thereto is connected to the battery (during an on-state of the load), the battery is charged with the rated voltage even if there is a need to charge the battery with a charging voltage higher than the rated voltage. Alternatively, the battery may be charged for a predetermined time at a voltage above the rated voltage and then at or below the rated voltage, or the voltage seen by the load may be converted to a voltage at or below the rated voltage while the battery is being charged at a voltage above the rated voltage. When the load is off, the battery is charged with a voltage higher than the rated voltage.
|
