Design and Construction of Variable Direct Current Speed Drive

Abstract

A direct current variable speed drive is designed and constructed using silicon-controlled rectifiers from the viewpoint of simplicity and cost effectiveness to act as power converter and controller. Design and construction of constituent circuits such as acceleration/deceleration, speed and current amplifier and the trigger circuit are presented together with their corresponding input and output waveforms.

(Botswana Journal of Technology: 2003 12(2): 8-13)