| 摘要 |
An electronic device (100) includes a power supply circuit selectively providing an external power source or an internal power source (133), a first part (175a) determining whether the external power source is selected, a second part (175b) detecting a type of a functional unit used in the electronic device, and a third part (161) which controls to supply the functional unit with electncity from one of the external and internal power sources on the basis of determination results obtained by the first and second parts. <IMAGE> |
