发明名称 |
Motor controller, integrated circuit, and method of controlling a motor |
摘要 |
A motor controller includes an input terminal (22), a frequency selective network, a first controller, and a second controller. The input terminal is adapted to be coupled to a drive phase of a motor (16) for receiving a signal (24). The frequency selective network (18) has an input coupled to the input terminal (22) and an output for providing a first signal representative of the back EMF signal within a frequency range corresponding to a predetermined harmonic frequency above a primary frequency thereof. The first controller (20) has an input coupled to the output of the frequency selective network (18) and an output for providing a second signal representative of a position or a velocity of a rotor of the motor (16). The second controller (10) has an input coupled to the output of the first controller (20) and an output for providing a third signal. The third signal indicates how the motor (16) is to be driven.
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申请公布号 |
US6081091(A) |
申请公布日期 |
2000.06.27 |
申请号 |
US19990263561 |
申请日期 |
1999.03.08 |
申请人 |
MOTOROLA, INC. |
发明人 |
MITCHELL, MICHAEL E.;HAYNER, DAVID A. |
分类号 |
H02P6/16;H02P6/18;(IPC1-7):G05B19/40 |
主分类号 |
H02P6/16 |
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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