| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve design flexibility of a main body. <P>SOLUTION: This computer main body 11 is provided with a USB receptacle into which a USB plug exclusively connected to either USB equipment or AC adaptor 40 is inserted. The computer main body 11 is provided with a power source controller 125 for generating system power from a DC power to be supplied by the AC adaptor 40; a DC limiter 202 for supplying the power to the USB equipment; a USB controller 119A for communicating with the USB equipment; and an input/output switching circuit 201 for supplying external power to be supplied from the power source input/output pin to a power source controller 125 when an external power source input function is selected by a switch 71, and for supplying power from the current limiting circuit 202 to the USB equipment when a power supply function is selected by the switch 71. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
