Troy J Lamontagne

US Patent:

48855146, Dec 5, 1989

Filed:

Dec 24, 1987

Appl. No.:

7/138618

Inventors:

Ari M. Novis - Rocky Hill CT
Don L. Adams - Fairfield CT
Troy J. LaMontagne - Wallingford CT
Albert Sivahop - Trumbull CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G05D 312

US Classification:

318580

Abstract:

An arrangement for controlling the position of a movable member, especially an aircraft control surface member, includes an operational amplifier and a capacitor connected in parallel to the amplifier. The control arrangement further includes a detector which detects the restoration of the supply of electric power following its interruption and generates a limited-duration pulse. This pulse is then used to close a switch, which is interposed between an input terminal of the capacitor and the ground, for the duration of this pulse, so that the capacitor is charged much more rapidly than otherwise. The output signal of the combination of the operational amplifier and the capacitor is supplied to an actuator for the movable member so that the extent of excursion of the movable member out of its desired position after the electric power supply has been restored is minimized.

Address:

37 Sherman Rd, Enfield, CT 06082

Phone:

(860)8412711

VIN:

YV1940AS4B1136134

Make:

VOLVO

Model:

S80

Year:

2011