发明名称 |
Speed control circuit for a series motor |
摘要 |
A speed control circuit for a series motor is disclosed which keeps the rotational speed of a motor constant by detecting the slight change of an electromotive force caused by the change of the load motor. A gate signal from a trigger signal generating element is provided to the base of a thyristor connected in series with the series motor. The gate signal is controlled by a control circuit.
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申请公布号 |
US4170749(A) |
申请公布日期 |
1979.10.09 |
申请号 |
US19770826650 |
申请日期 |
1977.08.22 |
申请人 |
YAMAMOTO ELECTRIC IND CO LTD |
发明人 |
SOEDA, KATSUJI |
分类号 |
H02P7/295;H02P7/292;(IPC1-7):H02P5/16 |
主分类号 |
H02P7/295 |
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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