发明名称 |
Motor driving device for motor having multi-phase coils |
摘要 |
A motor driving device includes (a) a wide-angle feeding device for feeding power to three-phase coils in a width of 150 degrees in electrical angles and (b) a feeding amount controller for controlling a feeding amount to the coils. During overlapping periods, in which adjacent coils out of the three coils are in the same fed condition, an amount of a first value is fed to the coils and an amount of a second value is fed during the periods other than the overlapping periods. This structure allows the motor to reduce torque ripples, vibrations as well as noises during its operation, and at the same time, the motor can produce a greater output and operate at higher efficiency.
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申请公布号 |
US6710559(B2) |
申请公布日期 |
2004.03.23 |
申请号 |
US20020153323 |
申请日期 |
2002.05.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YASOHARA MASAHIRO;TSUBOUCHI TOSHIKI;SUGIURA KENJI |
分类号 |
H02P6/10;H02P8/12;H02P23/00;(IPC1-7):H02P3/08 |
主分类号 |
H02P6/10 |
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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