发明名称 |
Method of and an apparatus for controlling a plurality of DC motors |
摘要 |
The present invention provides method and apparatus to control a plurality of DC motors each having an encoder by a sole microcomputer. The actual rotating speed of each DC motor is detected in response to the signal from the encoder. A pulse width of a voltage which is applied to each motor is controlled due to the deviation between the actual speed and a preset speed. The output signals from the encoders regarding a specific DC motor to the other DC motor are sequentially selected by a selection signal, thereby controlling the speed measurements and calculations regarding a plurality of DC motors and the duties of electric powers which are applied to the DC motors.
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申请公布号 |
US4644232(A) |
申请公布日期 |
1987.02.17 |
申请号 |
US19840662012 |
申请日期 |
1984.10.18 |
申请人 |
HITACHI, LTD. |
发明人 |
NOJIRI, YUUKOU;ISHIZAKI, KOSHO;ISHIDA, GIICHI;INAMURA, JUNSHIRO |
分类号 |
H02P5/50;(IPC1-7):H02P7/68 |
主分类号 |
H02P5/50 |
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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