Specificities of engineering of training information systems with virtual electronic tutoring devices

In the study of engineering disciplines, special attention is paid to students’ participation in conducting scientific experiments. But not all experiments can be implemented in physical laboratories due to the high cost and great complexity. In such cases, information technologies provide an opportunity to create virtual learning systems, a kind of which is cognitive training information systems, including virtual tutoring devices. The methodological basis for researching the components of virtual tutoring devices and training informational system as a whole was the complex application of mutually complementary approaches and methods, the main of which were methods of decomposition, aggregation, structural and cognitive analysis. One of the most significant shortcomings of existing training information systems is their low didactic efficiency, therefore, the purpose of this article is to create virtual electronic training devices as part of cognitive learning systems which functioning algorithms take into account the education process participant’s personal qualities and thereby provide the opportunity of using a student-oriented approach in education. The article presents schematic solutions for the engineering of training information systems, which include virtual models of precision power systems and precision amplification systems. By building powerful power supply systems, it was possible to fully compensate the instability of the output voltage when the load current changes up to 50 A. Solutions were also proposed to create broadband amplifiers with a harmonic coefficient of 0.003%. The work proposes schematic solutions for virtual electronic training devices that can provide students with nodes of various complexities in engineering. The work presents methods for increasing the didactic efficacy of the use of training information systems.