发明名称 |
Elevator motor control |
摘要 |
A method and apparatus for controlling a direct current motor of an elevator during emergency braking by conducting a current generated by the motor through a braking resistor are disclosed, in which a semiconductor switch connects the braking resistor across the motor during the emergency braking and a mains voltage to the motor is simultaneously interrupted.
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申请公布号 |
US4672277(A) |
申请公布日期 |
1987.06.09 |
申请号 |
US19840680314 |
申请日期 |
1984.12.10 |
申请人 |
ELEVATOR GMBH |
发明人 |
MAKINEN, HEIMO;KAHKIPURO, MATTI |
分类号 |
B66B1/32;H02P3/14;(IPC1-7):H02P3/14 |
主分类号 |
B66B1/32 |
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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