Physical components are mapped into their footprints for creation of the PCB layout. CvPcb tool is used for this footprint mapping. The PCB layout is drawn with the help of Pcbnew. It is not always practical to check the accuracy of the design using breadboard testing. Model Builder helps in creating accurate models and editing existing models. Hierarchical modelling helps in designing complex models. Subcircuit Builder helps in creating sub-circuits.
Netlst converter helps in the conversion of netlists into a Ngspice-compatible format. Analysis Inserter proves to be an effective graphical interface for various types of simulations performed.
For analogue-, digital- and mixed-signal circuit simulation, eSim uses Ngspice software. SMCsim is also provided.
An indigenous open source software
There is a welcome trend in the country to promote the use of open source software, wherever possible. eSim was developed by the research group at IIT Bombay as a part of this initiative. The widespread use of open source software will certainly encourage a lot of people into serious research, especially in an economically-developing country like India where mastermind ideas are limited by shortage of funds.
The author is an electronics enthusiast from Kerala
