| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inexpensive and highly reliable motor-driven system having a power storage device, not requiring a management device for charging and discharging. <P>SOLUTION: The motor-driven system 1 includes a motor-driven device 2, a power storage device 7, a generator 6 and a driver 5. The upper limit voltage E1 of a voltage to be supplied to the power storage device 7 is controlled by a voltage upper limit control function of the generator 6, and the power from the generator 6 or the power storage device 7 is supplied to the motor-driven device 2 while preventing the power storage device 7 from having a voltage lower than the lower limit voltage E2 by the driver 5 having the lower limit voltage detecting function. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
