发明名称 |
Electric stepper motors |
摘要 |
An electric stepper motor has in addition to the usual driving coils at least one additional coil wound on its stator and connected in a closed circuit. This additional coil damps any oscillations of the rotor. The closed circuit has a resistive value optimized to achieve maximum damping effect. Two or more such additional coils may be connected in a single closed circuit and a number of such closed circuits may be provided.
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申请公布号 |
US4100473(A) |
申请公布日期 |
1978.07.11 |
申请号 |
US19760728732 |
申请日期 |
1976.09.30 |
申请人 |
NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
LAWRENSON, PETER JOHN;HUGHES, AUSTIN |
分类号 |
H02K37/22;H02P8/32;(IPC1-7):H02K37/00 |
主分类号 |
H02K37/22 |
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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