发明名称 |
Speed control apparatus for elevator |
摘要 |
A speed control apparatus for an elevator wherein a current command signal for controlling the firing angle of dual thyristor converters is supplied through a filter circuit. On switching from one converter to the other pursuant to reversing the elevator direction, the filter circuit is reset to bring the current command signal momentarily to zero, after which it rises smoothly in a positive or negative direction together with the elevator motor armature current.
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申请公布号 |
US4373610(A) |
申请公布日期 |
1983.02.15 |
申请号 |
US19810264167 |
申请日期 |
1981.05.15 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
ISHII, TOSHIAKI |
分类号 |
B66B1/24;B66B1/28;B66B1/30;H02P29/00;(IPC1-7):B66B1/30 |
主分类号 |
B66B1/24 |
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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