| 摘要 |
PURPOSE:To prevent a package from being damaged and also prevent malfunctioning of a system by using an auxiliary power source and a plurality of inductances, and limiting a rush current during insertion or pulling of a hot line. CONSTITUTION:A set of a main power source 2 and an auxiliary power source 1 for supplying a source current to each of electronic circuits 11, 21, first connectors 31, 34 for connecting the auxiliary power source 1 to each of the electronic circuits 11, 21 via paths P1 to P4 having respective inductances, and second connectors 32, 35 for connecting the main power source 2 directly to each of the electronic circuits 11, 27 are provided. When power is supplied to the electronic circuit 11 from the auxiliary power source 1 via the path P1 the rush current is limited by inductances 16, 17, 18, and when power is supplied to the circuit 11 via the path P2 the rush current is limited by inductances 14, 15, and when via the path P3 the rush current is limited by an inductance 13 and a steady state is gradually achieved from path P1 to path P2 to path P3 to path P4. |
