| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging system capable of accurately confirming whether an incorporated power source is brought into an overdischarge state, by accurately detecting a voltage of the incorporated power source before starting charging, without newly providing a power source in an electronic apparatus.SOLUTION: A charging system 100 comprises: a charging circuit 28 for charging an incorporated power source 24; a voltage detection circuit 26 for detecting a voltage V of the incorporated power source 24; a charging control circuit 27 for controlling start and stop of a charging operation of the charging circuit 28 on the basis of a detection result of the voltage detection circuit 26; and an overdischarge protection circuit 25. Power is supplied from a charging device 60 to the charging control circuit 27 and the voltage detection circuit 26 and when a functional part of an electronic apparatus 1 is disconnected from the incorporated power source 24 by operating at least the overdischarge protection circuit 25, the charging control circuit 27 does not immediately start supplying power from the charging circuit 28 to the incorporated power source 24 even if power is supplied from the charging device 60 in the case of charging, while detecting the voltage V of the incorporated power source 24 before charging by the voltage detection circuit 26. |
