DC motor control circuit and DC motor

Details DC motor control circuit and DC motor DC motor control circuit and DC motor

1994-07-26

1996-07-16

Cabeca, John W.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 388840, 388919, H02P 724

Patent

active

055370128

ABSTRACT:
A DC motor control circuit for controlling a restraint torque of a DC motor which continues the rotation by triggering an external force. This control circuit is installed in a DC motor. In a DC motor control circuit comprising a drive transistor collector connected to a first brush of a DC motor, and a detection transistor collector connected to the base of said drive transistor and base connected to said first brush, a variable resistor is connected between the emitter of said detection transistor and a second brush of said DC motor and a capacitor connected between their one end and movable terminal of said variable resistor. The control circuit further comprises a drive current limiter for the drive transistor.

REFERENCES:
patent: 4066895 (1978-01-01), Kishi
patent: 4232258 (1980-11-01), Matsumura
patent: 4262260 (1981-04-01), Tamura
patent: 4636702 (1987-01-01), Hedges
patent: 4968921 (1990-11-01), Giardini
patent: 4987352 (1991-01-01), Ishii
patent: 5005081 (1991-04-01), Asano
patent: 5159284 (1992-10-01), Jung et al.
patent: 5262703 (1993-11-01), Schmider et al.
patent: 5376866 (1994-12-01), Erdman

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