| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a centrifugal separator which does not require a power supply translator between the alternate power supply and a direct current convertor by making a motor controller designed for the centrifugal separator for alternate current power supply AC100V system applicable to an alternate current power supply AC200V system possible. <P>SOLUTION: A control part 15 comprises: a first memory region 12a which stores characteristics of a voltage instruction coefficient for correcting a pulse width of a pulse width modulation signal for driving an inverter 5 for a charging voltage of a smoothing capacitor 3; and a second memory region 12b which stores characteristics of a voltage instruction value which presents a supply voltage to a motor 6 corresponding to the number of rotation of the motor 6. The control part 15 outputs the pulse width of the pulse width modulation signal such that the prescribed number of motor rotation is provided for the charging voltage detected from the smoothing capacitor 3, based on the charging voltage detected from the smoothing capacitor 3, and the voltage instruction coefficient and the voltage instruction value which are stored in the first and second storage regions 12a, 12b. <P>COPYRIGHT: (C)2008,JPO&INPIT |
