| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor driver of high rate of power utilization which suppresses a resonant current between a plurality of inverter devices. <P>SOLUTION: A motor driver 100 comprises inverter devices 20 and 70, a DC current generating circuit 30, a wiring 50, a reactor 60, and a control unit 80. The inverter device 20 comprises a capacitor C2, and voltage type inverters 21 and 22. The inverter device 70 comprises a current type inverter 71. The wiring 50 connects the DC current generating circuit 30 to the inverter device 70. The reactor 60 is inserted in the wiring 50. The inverter device 20 and the DC current generating circuit 30 are stored in a case 90, and the inverter device 70 is stored in a case 91. The DC current generating circuit 30 allows a DC current between the inverter device 20 and the inverter device 70 to be a constant current according to drive signals DRV1, 2 from the control unit 70. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
