| 摘要 |
PURPOSE:To miniaturize an electronic device without changing its performance, by securing such an array that a switch circuit can be switched to a light load from no load and then to a heavy load. CONSTITUTION:For a power supply circuit 50, a state of application is set for OFF-radio-TV via a mobile terminal 12c of a control knob 12b for power supply selector switch. Thus the selection is possible between no connection load-a circuit 51 exclusive for radio receiver and an audio circuit 52-a TV exclusive circuit 53 and the circuit 52. The working currents IR and It are supplied from a power supply circuit 50 in use of a radio receiver and a TV receiver respectively. Here the arraying order of selector switches of the power supply are set as mentioned above. This can reduce the maximum value of the cut-off capacity of the switch by IR as shown in It-IR. |
