| 摘要 |
PURPOSE:To conduct transmission and distribution of power by one loop-shaped wiring, to reduce the space and the cost of the wiring and to prevent accidents of leak and short circuit by connecting a plurality of loads to one loop-shaped wiring and by allotting a feeding time for the loads properly. CONSTITUTION:A main control device 2 is attached to a power source 1 and it exchanges information with a control device of each load and makes the timing of transmission of power to each load appropriate. Besides, the main control circuit 2 has a function of operating a switch 3 so that a current may flow only when the load is connected and that a short-circuit current may not flow on the occasion of no-load. The control device 6 is attached to the load 2 and it operates an electronic switch 7 at a high speed and thereby brings forth alternately a state wherein the current flows through the load 5 and a state wherein the current does not flow through the load 5, but flows directly through the switch 7. By adjusting the ratio between these states, a power in a necessary amount is supplied to the load 5. |
