Modeling and design of a low-cost constant current electronic load

Electronic loads are very useful tools for various applications in an electronics laboratory, but their high cost and lack of precise mathematical representation in the literature is a significant limitation. In this sense, this work presents the design and modeling of low-cost direct current (dc) analog electronic load. Design recommendations are presented in terms of a comprehensive design procedure. The related equations are presented, giving a broader understanding of the principles of operation. Three distinct test scenarios are analyzed, whereas the equipment relies on low-cost components.