Electronic braking device for asynchronous motors

Details Electronic braking device for asynchronous motors Electronic braking device for asynchronous motors

1992-12-18

1994-12-27

Shoop, Jr., William M.

Electricity: motive power systems

Braking

Dynamic braking

318761, H02P 314

Patent

active

053768671

ABSTRACT:
An electronic braking device is provided for an asynchronous motor equipped with magnetic bearings of a type used in turbomolecular pumps. The device comprises a circuit for recovering the kinetic energy of the rotor as it decelerates as a result of a disruption of electric current from an external power means. The device is adapted to convert the rotational kinetic energy of the rotor to an electric current and in order to maintain the support provided by the magnetic bearings.

REFERENCES:
patent: 3995204 (1976-11-01), Konrad et al.
patent: 4039914 (1977-08-01), Steigerwald et al.
patent: 4143309 (1979-03-01), Patterson
patent: 4520296 (1985-05-01), Lepper et al.
patent: 4831469 (1989-05-01), Hanson et al.
patent: 5034669 (1991-07-01), Sako et al.

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