Passive electronic damping for step motor

Details Passive electronic damping for step motor Passive electronic damping for step motor

1997-01-22

2000-03-21

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

H02P 800

Patent

active

060406763

ABSTRACT:
Passive electronic damping apparatus for a step motor of the type having a number of phase windings, comprising: a respective transconductance amplifier coupled to each phase winding for producing a phase drive current in the winding in response to a position command; each transconductance amplifier exhibiting an output impedance characteristic; and a circuit for changing the amplifier output impedance to effect motor damping.

REFERENCES:
patent: 3660746 (1972-05-01), Milek
patent: 4044291 (1977-08-01), Hughes et al.
patent: 4293807 (1981-10-01), Foster et al.
patent: 4319175 (1982-03-01), Leenhouts
patent: 4422040 (1983-12-01), Raider et al.
patent: 4514675 (1985-04-01), Matumoto et al.
patent: 4692679 (1987-09-01), Hujita
patent: 4749931 (1988-06-01), Kegel et al.

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