| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic bearing control device capable of suppressing a ripple electric current passing through an electrolytic capacitor to a small level. SOLUTION: An exciting circuit 110 for 10 shafts of a magnetic bearing is divided into two groups. The first group of the two groups is a group generating pulse by controlling transistors 131, 132 to be close to a first half (a range of 0 to TS/2) of one switching cycle TS, and the second groups is a group generating pulse by controlling the transistors 131, 132 to be close to a second half (a range of TS/2 to TS) of one switching cycle TS. COPYRIGHT: (C)2003,JPO
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