发明名称 |
Stepper motor controller |
摘要 |
A method of sequentially moving a stepper through a plurality of positions (steps) and current states associated with each of these positions from an initial step to a final step. When the direction of sequential movement is in a first direction, the number of steps is incremented before the current state associated with the final step is reapplied to the stepper motor. In a preferred embodiment, a shortened period of time is allowed immediately before the current state associated with the final step is applied to the stepper motor. The method diminishes the magnetic hysteresis by always electrically and magnetically approaching the final position (step) from the same direction whether or not the stepper motor physically approaches the final position from the same direction.
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申请公布号 |
US4437049(A) |
申请公布日期 |
1984.03.13 |
申请号 |
US19820372384 |
申请日期 |
1982.04.27 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
TULLOS, ROBERT N.;OSTROFF, ARTHUR |
分类号 |
H02P8/26;(IPC1-7):H02K29/04 |
主分类号 |
H02P8/26 |
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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