| 摘要 |
PROBLEM TO BE SOLVED: To attain power saving of standby power.SOLUTION: A body device 10 includes a power source changeover circuit 12 changing over between electrification and disconnection of a commercial power source 50. A remote device 30 includes a self power generating circuit 33 generating electric charges with self power generation, and a power source switch 32 supplying the electric charges generated in the self power generating circuit 33 to the body device 10 through a connection wire 20 according to user operation. The power source changeover circuit 12 re-electrifies the commercial power source 50 by supplying through the connection wire 20 the electric charges generated in the self power generating circuit 33 through the power source switch 32 according to user operation, in a state where electrification of the commercial power source 50 is disconnected.SELECTED DRAWING: Figure 1 |
