Accession Number : AD0732320

Title :   A Switching Type Power Supply for Bidirectional dc Motor Control.

Descriptive Note : Research memo.,

Corporate Author : GRUMMAN AEROSPACE CORP BETHPAGE N Y RESEARCH DEPT

Personal Author(s) : Kesselman,Martin

Report Date : OCT 1971

Pagination or Media Count : 17

Abstract : A motor controller utilizing pulse-width modulation techniques was developed to vary the output of a 24 V dc permanent magnet motor smoothly from full forward to full reverse in proportion to command signals from a control potentiometer. The controller can deliver up to 120 A, provides smooth output, and incorporates a 'negative hysteresis' circuit for canceling the effects of friction in the mechanical system driven by the motor. (Author)

Descriptors :   (*POWER SUPPLIES, SPEED REGULATORS), ELECTRIC MOTORS, DIRECT CURRENT, POWER AMPLIFIERS, SUPPRESSORS, HYSTERESIS, PULSE DURATION MODULATION, TRANSIENTS, PROTECTION

Subject Categories : Electric Power Production and Distribution
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE