3D-Schema: An intuitive model for analog circuits instruction

Abstract

Conventional instruction methods employed to depict the operation of electronic devices and circuits are not always the most suitable for a clear and intuitive understanding. The present work proposes a visual instruction method for education in analog circuits, particularly suitable for B.Sc. undergraduates in their first subject on electronics. This method is based on an animated three-dimensional model of circuit operation, called 3D- Schema. While a conventional schematic diagram is of a two-dimensional nature, 3D- Schema adds a third dimension, using perspective, to provide an apparent display of circuit node voltages. An integrated environment has been built which includes all the tools needed to develope and run lessons on analog circuits based on the 3D- Schema model. Both the model and its implementation are described. This system has been applied in the University of Vigo, as a complement to the teacher's dissertation. It will be used under student control in the present course.