Interactive Modules For Electric Circuits

Digital simulators are familiar tools in the undergraduate teaching and learning environments. In both inanimate and live forms, simulators are used as tools for design, concept development, demonstrations, and supplements to laboratory experiments. We have developed computer-based modules for the circuits, signals and systems courses that provide maximum man-machine interaction with minimum effort. For maximum learning effectiveness, the modules i) are specialized, ii) have reaction speed close to the real-time operation of the physical system and iii) use open-loop movement of finger and hand as opposed to closed sensory-motor loops for variable modification. This paper presents circuit modules covering resistive circuits, network theorems, amplifiers, RC-RL-RLC circuits, resonance, and energy and power. Each module focuses on a specific topic. It gives the user the choice of circuit and signals within a family and allows him/her to rapidly modify element values and initial states. Circuit variables such as voltages, currents, and power are displayed on the monitor. The modules, as an integral part of the courseware, can play an important role in helping students develop concepts, practice, analyze, simulate and design.