Current limiting control circuit for d.c. motors

Details Current limiting control circuit for d.c. motors Current limiting control circuit for d.c. motors

1988-04-27

1989-06-13

Shoop, Jr., William M.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

361 87, 388902, 388903, 388910, 388915, 388918, 388921, G05B 500

Patent

active

048395706

ABSTRACT:
A current limiting control circuit for a d.c. motor, wherein compensation is provided for the inherent voltage drop across the armature of the d.c. motor with a first dedicated amplifier, while a second dedicated amplifier provides current limit control. In providing a separate and dedicated amplifier for the current limiting function, the limitations inherent in the current/resistance compensation circuit, such as lag in response time, are avoided.

REFERENCES:
patent: 3551774 (1970-12-01), Rusch
patent: 3999108 (1976-12-01), Tanikoshi
patent: 4297623 (1981-10-01), Dupont
patent: 4371818 (1983-02-01), Lewis
patent: 4468597 (1984-08-01), Baumard et al.
patent: 4511830 (1985-04-01), Yamada et al.
patent: 4514665 (1985-04-01), Melocik et al.

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