| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which can quickly detect breakage of a power supply line, using a simple constitution. <P>SOLUTION: A microcomputer detects the breakage of power supply line, by comparing its lower voltage LV and intermediate voltage MV with a specified voltage Vth set in the vicinity of a ground voltage (OV), based on each of detected phase voltages Vu, Vv, and Vw. <P>COPYRIGHT: (C)2008,JPO&INPIT |
