| 摘要 |
PURPOSE:To transfer multiple charge data and power control data with a small number of connection members by providing parallel/serial conversion circuits for a unit main body and an AC adapter and executing serial wireless transmission between the unit main body and the AC adapter. CONSTITUTION:At the time of transmitting data from the unit main body 2 to the AC adapter 1, the parallel/serial (P/S) conversion circuit 17 converts parallel data into serial data. Data is transmitted from the data line 102 to the P/S conversion circuit 13. The P/S conversion circuit 13 converts serial data into parallel data and gives it to the power/charge control 11. A control signal from the power/charge control 11 is converted into serial data in the P/S conversion circuit 12, transmitted to the AC adapter 1 through the data line 102, converted into a parallel signal in the P/S conversion circuit 16 and is used for power/charge control. This, data can be transmitted with the small number of the transmission lines. |
