| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter controller for performing stabilized torque control, improvement of efficiency and high speed rotation in a brushless DC motor controller. <P>SOLUTION: A switching means 11 is provided between capacitances C1, C2 of step-up capacitors 4, 5 and capacitances C3, C4 of smoothing capacitors 6, 10 in order to ensure stabilized torque control and high efficiency or high speed in the middle speed region by regulating the capacitance of the capacitor and increasing/decreasing the DC voltage VDC. <P>COPYRIGHT: (C)2007,JPO&INPIT |
