发明名称 |
Automatic gain control apparatus for a motor servo system |
摘要 |
When the number of revolutions of a motor, or a motor speed is reduced half, a gain of a frequency-voltage converter is doubled. By taking advantage of this fact, a gain of an error signal amplifier disposed at the poststage of the frequency-voltage converter is automatically changed to be half interlocking with a switching operation for switching the number of the motor revolutions to the half.
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申请公布号 |
US4338554(A) |
申请公布日期 |
1982.07.06 |
申请号 |
US19800143120 |
申请日期 |
1980.04.23 |
申请人 |
HITACHI, LTD. |
发明人 |
FUKUSHIMA, ISAO;NISHIJIMA, HIDEO;SATOH, KENJI;TESHIMA, TUNEHIKO |
分类号 |
H02P29/00;G05B13/00;G05B13/02;H02P7/288 |
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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