发明名称 |
Motor control apparatus and speed setting apparatus |
摘要 |
A motor control apparatus for a sewing machine includes an adjustable speed setter for generating a speed set signal. A first memory stores a plurality of reference values each defining a reference region into which the speed set signal can fall. A second memory stores speed setpoint values corresponding to the reference regions. A central processing unit selects one of the reference regions by comparing the speed set signal with the reference values and selects the corresponding speed setpoint value from the second memory. A motor is controlled to run at the selected speed setpoint value.
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申请公布号 |
US5029230(A) |
申请公布日期 |
1991.07.02 |
申请号 |
US19890391032 |
申请日期 |
1989.08.09 |
申请人 |
MITSUBISHI DENKI KABUSHIKI |
发明人 |
YAMAUCHI, SATOMI |
分类号 |
H02P29/00;D05B69/18;H02P27/04 |
主分类号 |
H02P29/00 |
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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