| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller in which an inexpensive DC conversion section with a small occupation space is easily selected in a motor drive device including a single DC conversion section converting AC into DC; and a plurality of AC conversion sections for converting DC outputted from the DC conversion section into AC supplied as drive power of respective motor sections. <P>SOLUTION: The motor controller 1 includes: the single DC conversion section 11 for converting the inputted AC into the DC; the plurality of AC conversion sections 12-1, 12-2 and 12-3 for converting the DC outputted from the DC conversion section 11 into the AC supplied as the drive power of the motor sections 2-1, 2-2 and 2-3; a DC conversion section consumption power calculating section 21 for calculating DC conversion section consumption power from input voltage and input current to the DC conversion section 11 at every prescribed time; and a DC conversion section maximum output calculating section 22 for extracting a maximum value from the DC conversion section consumption power calculated at every prescribed time and outputting the value as DC conversion section maximum output. <P>COPYRIGHT: (C)2013,JPO&INPIT |
