| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller wherein the response of output voltage in load fluctuation can be enhanced. <P>SOLUTION: A duty ratio D<SB>fb</SB>is obtained based on an output voltage detection value V<SB>out</SB>, and further a duty ratio D<SB>ff</SB>is obtained based on an output voltage command value V<SB>out</SB>*. Based on both the duty ratios D<SB>fb</SB>and D<SB>ff</SB>, a duty command value D* is obtained. Based on the duty command value D*, the duty ratios D1 and D2 of duty ratio driving signals S1 and S2 are determined. Based on both the duty ratios D1 and D2, a boosting circuit 35 is driven and controlled. That is, the boosting circuit 35 is driven and controlled by feedforward control based on the output voltage command value V<SB>out</SB>* in addition to feedback control based on the output voltage detection value V<SB>out</SB>. Thus, the response of the output voltage detection value V<SB>out</SB>to the output voltage command value V<SB>out</SB>* in load fluctuation is enhanced. <P>COPYRIGHT: (C)2004,JPO |
