PURPOSE: To provide a driving circuit for a branch switch capable of operating an operation switch for a driving coil without considering a switching timing.
CONSTITUTION: A plurality of series connection circuits, each constituted of two C-coils C11, C12 having a different winding direction and a different number of winding from each other and an operating switch SW1, are connected to each other in parallel, and the same number sets of two M-coils M11, M12 having a different winding direction and a different number of winding from each other are provided so that all of them are connected to each other in series. A relay RLY1 is formed of two C-coils and two M-coils so as to open/ close one relay contact point, and a plurality of relays are incorporated to constitute a branch switch. One end of the above coils in parallel connection is connected to one side of a power source E and the other end of the same coils is connected to the other side of the power source E via the coils in series connection.
FUTAMI MASAAKI
NAKAMURA SADAJI
