| 摘要 |
PURPOSE: To provide a charge control circuit, a charger, a power supply circuit, an information processing device and a battery pack in which a current measuring sense resistor at the charger side is dispensed with, and thereby the charge efficiency of the power supply circuit or the like is improved, costs are reduced, and also sizes are reduced. CONSTITUTION: Since a charging current flows in the current sense resistor RS installed inside the battery pack 4A at the time of charging, the charging current is detected by detecting voltages at both ends of the resistor, and the charge control circuit 8A controls the charging current to be in a prescribed range by using the detected value, thus aggregating resistors for current detection in one closed circuit formed at charging in the power supply circuit 1A into one resistor.
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