| 发明名称 |
Spindle motor drive controller |
| 摘要 |
The PWM frequency to be input to a current controller (4) that generates voltage commands for a spindle motor inverter unit (5) is switched between multiple levels according to a current feedback value, to suppress heat generation in the spindle motor (10) and drive unit (5). |
| 申请公布号 |
EP1496608(A3) |
申请公布日期 |
2007.06.13 |
| 申请号 |
EP20040254075 |
申请日期 |
2004.07.07 |
| 申请人 |
FANUC LTD |
发明人 |
IWASHITA, YASUSUKE;AKIYAMA, TAKAHIRO;MORITA, YUUKI |
| 分类号 |
H02P7/00;H02P6/00;H02P27/02;H02P27/04;H02P27/08 |
主分类号 |
H02P7/00 |
| 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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