Reversing control for DC. motors of the permanent magnet field t

Details Reversing control for DC. motors of the permanent magnet field t Reversing control for DC. motors of the permanent magnet field t

1975-01-10

1977-04-26

Schaefer, Robert K.

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

318293, H02P 708

Patent

active

040204030

ABSTRACT:
A simple and economical system for operating a dc. motor of the permanent magnet field type from an ac. supply, characterized in that the motor may be driven at an adjustable speed in a forward direction by energization through a controlled half wave rectifier (e.g., SCR) or at a fixed, high speed in the reverse direction by energization through a half wave diode rectifier.

REFERENCES:
patent: 3184670 (1965-05-01), Reynolds
patent: 3222583 (1965-12-01), Gutzwiller
patent: 3551768 (1970-12-01), Lagier
patent: 3678354 (1972-07-01), Kitanosono et al.
patent: 3818310 (1974-06-01), Smith

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