| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a controller of motor in which current feedback control of a plurality of motors is performed commonly using one digital operation means and a different carrier period can be used for each of the plurality of motors. <P>SOLUTION: Processing A performing entirely from taking in of a current value to output of a PWM signal is separated from processing B performing operation of a PWM signal by using a voltage command operated previous time while omitting a part of processing A, remaining time of each operation in each motor is detected and any one of processing A or processing B is selected as the next processing depending on the remaining time. In other words, the controller of motor is arranged such that normal processing A is performed where there is a sufficient remaining time and processing A can be performed, and minimum necessary processing B is performed if there is little remaining time and processing A is impossible. <P>COPYRIGHT: (C)2007,JPO&INPIT |
