Scientific journal
European Journal of Natural History
ISSN 2073-4972

THE ANALYSIS AND SYNTHESIS OF OPTIMUM STRUCTURES OF ANALOG-DIGITAL AND DIGITAL-TO-ANALOG TRANSFORMATION OF SYSTEMS OF AUTOMATIC CONTROL

Bondar М.S., Zakharov G.V.
Modern discrete systems of automatic control (regulation) contains in the structure both digital (discrete). and analog (continuous) parts. For the coordination of these parts in system are used analog-digital (АDC) and digital-to-analog converters (DAC). Them metrology characteristic (first of all, accuracy) play the important role in maintenance of quality of realization measuring, managing functions of systems of automatic control and their serviceability.

Therefore our scientific research is directed on the analysis of the reasons. lowering accuracy of transformation, and development the possible ways of reduction of their influence. And then - on the decision optimum of a task and development of the recommendations on construction of effective structures of input-output of the information in systems of automatic control. With this purpose the following research problems were put:

  1. Development the methods of increase the accuracy of a subsystem (process) of analog-digital transformation. The given task already is decided by development of ways of improvement of the characteristics of devices the sample and storage of entrance signals АЦП; development of a method of formation of absolute meaning(importance) of entrance bipolar signals АDC; perfection of methods of correction the errors АDC; theoretical and experimental researches of the offered technical decisions on perfection of process of analog-digital transformation.
  2. Development the methods of increase the efficiency of a subsystem of formation the supporting voltage for АDC and DAC on the basis of development the methods of formation the supporting voltage and technical decisions precision, thermo-constant and not much noise the sources of a supporting voltage.
  3. Development the methods of increase the accuracy of a subsystem (process) of digital-to-analog transformation.
  4. Synthesis of optimum structures of input-output of the information in systems of automatic control on the basis of development the method of structural - parametrical synthesis of complex system and decision optimum of a task.

The work was submitted to international scientific conference «Actual problems of science and education», Cuba, March 20-30, 2010. Came to the editorial office on 28.01.2010.