Análise comparativa de softwares de simulação de circuitos eletrônicos

Abstract

The implementation of virtual laboratories offers the student and the designer to align the theoretical content with the practice, because besides instigating the interest for learning, it offers the student quality educational tools and resources, thus fostering critical and reflective skills important to prepare the user regarding the difficulties present in the labor market. Due to the COVID-19 pandemic, the need for uses of distance learning methods and technologies has increased. From this scenario, the present work aimed to perform a comparative analysis between two free electronic circuit simulation softwares that use Simulation Program with Integrated Circuits Emphasis (SPICE) as a programming language, LTspice and TINA-TI. SPICE is a powerful simulation tool used to predict the behavior of circuits, it was developed in the early 70's at the University of California, Berkeley's Electronics Research Laboratory. To perform the comparison three electronic circuits were simulated, being: 60 Hz Notch Filter, Emitter-Common Amplifier and Instrumentation Amplifier, and respectively the following analyses were performed: AC analysis, DC analysis and transient analysis. The main objective of the simulations was to compare the responses between the software. In addition, an analysis was made to understand if the behavior was in accordance with the calculated theoretical results. With the data obtained it was possible to observe that most of the components offered by the software are from different suppliers, in which it was possible to observe differences in the simulation results. Furthermore, in the transient analysis, it was observed that LTspice presented better gain results in the circuits.