Method and apparatus for controlling a motor

Details Method and apparatus for controlling a motor Method and apparatus for controlling a motor

1995-09-29

1997-08-12

Sircus, Brian

Electricity: motive power systems

Induction motor systems

Primary circuit control

318432, H02P 742

Patent

active

056569122

ABSTRACT:
A controller for a motor having at least one stator phase and a method for controlling the motor, the controller including a drive signal generator for producing an electrical drive signal in the stator phase, the drive signal resulting in a current flow in the stator phase such that the current flow varies in response to varying load conditions for the motor, a current sensor for monitoring the current flow in the stator phase, an error detector for producing an error signal related to changes in the current flow, and a manipulation circuit electrically connected to the error detector and to the drive signal generator for changing the electrical stimulus in response to the error detector.

REFERENCES:
patent: 4965504 (1990-10-01), Ueda et al.
patent: 5110264 (1992-05-01), Murry
patent: 5506486 (1996-04-01), Hayashi et al.

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