Accession Number : ADD001122

Title :   Bipolar Servo Amplifier Commutation Circuit Using a Separate Silicon Controlled Rectifier and Isolated Power Supply for Changing a Commutation Capacitor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Kaufman,Raymond H

Report Date : 01 May 1973

Pagination or Media Count : 7

Abstract : The patent describes a direct current powered commutation and damping system for a servo motor having both forward and reverse direction commutation circuits that use silicon controlled rectifiers for control. A logic circuit with a plurality of sequentially timed outputs is used for controlling the period of the duty and the damping cycles. The damping cycle is on for about 5 percent of the entire system repetition period, and is specifically on during the off period of the motor power pulse.

Descriptors :   *Commutators, *Patents, Servoamplifiers, Servomotors, Silicon controlled rectifiers, Damping, Power supplies, Logic circuits

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE