| 摘要 |
PURPOSE: A charging circuit for mobile terminal equipment is provided to allow the mobile terminal equipment to be charged with power supplied from AC/DC adapter allocated to other mobile terminal equipment, through communication network like LAN. CONSTITUTION: A charging circuit comprises a main controller(21) for carrying out communication with a plurality of mobile terminal equipments(22A-22C) through LAN, perceiving whether or not mobile terminal equipments are connected to AC/DC adapters(23A,23B), and outputting control command to allow the power from the AC/DC adapter allocated to the other mobile terminal equipment to be supplied, through LAN, to the mobile terminal equipment to which AC/DC adapter is not allocated; mobile terminal equipments for informing the main controller whether AC/DC adapter is connected, and which switch internal power network so as to directly receive power from the allocated AC/DC adapter or supply the power of the allocated AC/DC adapter to the other mobile terminal equipment, through LAN; and AC/DC adapters allocated to each of mobile terminal equipments and supplies DC power.
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