Active electronic damping for step motor

Details Active electronic damping for step motor Active electronic damping for step motor

1997-01-22

1998-12-08

Masih, Karen

Electricity: motive power systems

Synchronous motor systems

318696, 318685, 318798815-, 318455, 318438, 318650, H02P 146

Patent

active

058475354

ABSTRACT:
Apparatus for electronically producing a torque dependent signal for a plural drive phase synchronous step motor, without the use of an accelerometer or other external feedback device, includes a circuit for detecting respective instantaneous terminal voltage signals for at least two phases of the motor; another circuit for detecting respective instantaneous phase current signals for said at least two phases; and a signal processing circuit for combining the detected signals to produce said torque dependent signal.

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