Using a Computer for the Design of Analog and Digital Control Systems

The paper illustrates the use of an analog computer to aid in the design of a feedback control system by building a working model on which performance measurements can be made. The model is made to duplicate more closely the physical control system by use of the computer in combination with actual production hardware. The particular system described is a digital speed regulated dc motor drive using a 3-phase full wave control silicon controlled rectifier armature supply.