Electricity: motive power systems – With signals – meters – recorders or testing devices
Reexamination Certificate
2005-11-15
2005-11-15
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
With signals, meters, recorders or testing devices
C388S907500, C388S909000
Reexamination Certificate
active
06965208
ABSTRACT:
A motor speed detecting device for use between a motor and a system is provided. A motor speed detecting device for use between a motor and a system includes a first input terminal and a second input terminal, wherein the first and second input terminals are electrically connected respectively to a constant voltage potential and a ground potential for continuously receiving an electrical power; and a third input terminal electrically connected between the motor and the system, wherein the third input terminal receives a control signal sent by the system for controlling a speed of the motor. A motor speed control method using in a motor speed detecting device between a motor and a system is also provided.
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