发明名称 |
Brushless motor control method and controller |
摘要 |
In a brushless motor control method and a brushless motor controller in accordance with the present invention, a rotor rotation position detection means detects the time of the intersection of a detected induced voltage and an induced voltage reference value. In addition, a motor speed calculation means calculates the rotation speed of a brushless motor on the basis of the interval of the intersection times detected by the rotor rotation position detection means. Furthermore, a speed control means outputs a duty factor index on the basis of the deviation between the command speed and the rotation speed of the brushless motor. Still further, a switching signal generation means outputs switching signals to groups of switching devices on the basis of the rotation speed and the duty factor index at the time of the intersection.
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申请公布号 |
US6879129(B2) |
申请公布日期 |
2005.04.12 |
申请号 |
US20020109206 |
申请日期 |
2002.03.28 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAZAWA TORU;NARAZAKI KAZUSHIGE;IIJIMA TOMOKUNI;MATSUSHIRO HIDEO;SAHA SUBRATA |
分类号 |
H02P6/18;(IPC1-7):H01R39/46;H02P5/00;H02P5/28 |
主分类号 |
H02P6/18 |
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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