教师朗诵专利名称：Brushless DC motor having oppod pairs of axial magnetic field type permanent
magnets and control system therefor
围棋的玩法说明发明人：Shou-Mei Lin,Yu-Yen Wang带口字的成语
申请号：US09/274349
申请日：19990323
公开号：US06049149A伤感的句子简短
公开日：
爱心树故事
20000411
写熊猫的作文专利内容由知识产权出版社提供
摘要：A brushless DC motor includes oppod pairs of axial magnetic field type permanent-magnets. Two oppod stators are axially arranged at two opposite sides of a rotor, each and stator includes a plurality of equiangularly spaced electromagnetic zones and in least one winding at each electromagnetic zone. A control system is provided to detect pha angle and the revolving speed of the rotor through a nsor and to control the connection of DC current to each winding and its direction, enabling the windings in the electromagnetic zones to form with the rotor at least one motor. By means of detecting speed change of the rotor through the nsor, the control system controls the oppod pairs of axial magnetic field type permanent-magnet brushless DC motor to operate under different motor operation combinations and to output different torques.
申请人：LIN; SHOU-MEI,WANG; YU-YEN
释迦果的功效与作用代理机构：Bacon & Thomas海尔热水器好吗
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