Stall protection circuit for brushless motor control

Details Stall protection circuit for brushless motor control Stall protection circuit for brushless motor control

1984-07-31

1986-11-18

Shoop, Jr., William M.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, H02P 602

Patent

active

046238263

ABSTRACT:
This relates to the provision of a stall shutdown circuit for a brushless direct current motor wherein energization of the windings of the stator of the motor is controlled by transistors. By providing a stall shutdown circuit for shutting down power to the transistors when a stall condition exists, the capacity of the power supply transistor may be reduced to one-third of that presently required, thereby greatly reducing the cost of the motor. The brushless direct current motor utilizing the stall shutdown circuit of the present invention is particularly useful in a textile machine such as a take-up device where it is necessary to stop a spindle to doff and don yarn packages.

REFERENCES:
patent: 3265315 (1966-08-01), Mueller
patent: 3490707 (1970-01-01), Warshaw et al.
patent: 3887844 (1975-06-01), Yoshida
patent: 4030005 (1977-06-01), Doemen
patent: 4114819 (1978-09-01), Kanki et al.
patent: 4270074 (1981-05-01), Duckworth et al.
patent: 4374347 (1983-02-01), Muller

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