ELECTRIC MACHINE, ELECTRIC MACHINE SYSTEM

摘要

An electric device (1) in which a driver (4) drives an electric motor (5) by use of electric power supplied from a power supply (2) having a rechargeable secondary battery, and a controller (3) monitors, manages, and controls the driver and the whole device, is provided with a portable device power supply (7) to which a portable device (10) is connectable and which supplies electric power supplied from the power supply (2) to the connected portable device (10) and a portable device interface means (16) for communicating information with the connected portable device (10). <IMAGE>