| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor driver where a resonance current is not generated. <P>SOLUTION: The motor driver 100 is equipped with a DC power unit 11, wiring 12, a drive unit 14, and a controller 30. The wiring 12 connects the DC power unit 11 with the drive unit 14. NPN transistors Q1 and Q2, diodes D1 and D2, a reactor L1, the wiring 12, NPN transistors Q3 and Q4, and diodes D3 and D5 constitute a converter 12A. One end of the wiring 12 is connected to the reactor L1, and the other end is connected to the intermediate point between the NPN transistor Q3 and the NPN transistor Q4. The converter 12A converts the DC voltage Vb from a DC power source B into output voltage Vm and supplies it to an inverter IVT, according to the signal PWMU from the controller 30. <P>COPYRIGHT: (C)2004,JPO |
