发明名称 |
APPARATUS FOR CORRECTING HYSTERESIS SYNCHRONOUS MOTOR HUNTING |
摘要 |
A method and apparatus for accurately controlling a hysteresis synchronous motor velocity eliminate low frequency hunting, which is characteristic of the motor. A nominal input phase current is modified by providing feedback information, thereby enabling a microprocessor control system to modify the phase of quadrature input current signal to the motor and thereby eliminating hunting of the motor. Accordingly, in a high resolution scanning application, speed variations which could cause disturbing artifacts to appear in an output image are eliminated. Velocity control, better than 15 parts per million, can be achieved |
申请公布号 |
EP0629319(B1) |
申请公布日期 |
1998.06.03 |
申请号 |
EP19930906070 |
申请日期 |
1993.02.18 |
申请人 |
ECRM INCORPORATED |
发明人 |
BOSTON, W., THOMAS;CARL, JAMES, A.;CONNOLLY, JOHN, L., III |
分类号 |
H02P23/00;H02P25/02 |
主分类号 |
H02P23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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