发明名称 |
Drive system for operating an electric device |
摘要 |
A drive system is disclosed for operating an electric device. The drive system includes an electric motor having a permanent magnet rotor connectable to the electric device for controlling the operation of it by a limited-angle rotation, the electric motor further including a stator winding. The drive system includes a drive circuit connected to the stator winding. The permanent magnet rotor can be arranged to be aligned to a magnetic field created by the stator winding when supplied with current from the drive circuit, so that a maximum torque can be applied to the rotor and thereby to the movable part within an interval of ±25 degrees around a middle position between two end positions of the limited-angle rotation of the rotor. |
申请公布号 |
US8390236(B2) |
申请公布日期 |
2013.03.05 |
申请号 |
US201113157566 |
申请日期 |
2011.06.10 |
申请人 |
BACKMAN MAGNUS;VALDEMARSSON STEFAN;ABB RESEARCH LTD |
发明人 |
BACKMAN MAGNUS;VALDEMARSSON STEFAN |
分类号 |
H02P8/00 |
主分类号 |
H02P8/00 |
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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