Thursday, 23 October 2014


Chapter 1 of the thesis

There exists different circuit simulation environments for digital, analog and mixed signal circuitry. Some of them are Ng Spice, GnuCap, Circuit Logix, LT Spice, Student version of Multisim, Top spice, Circuitsimulator1.5j, Mac Spice, 5Spice, Beige Bag, Micro-Cap 10, PECS, Proteus, QUCS, Solve Elec, Xspice, Pspice, Multisim, SiMetrix, TINA, PowerSim.
Some of them are freely available while others are licensed versions. Among these circuit simulators most popular simulators are MultiSim, Pspice.
Multisim is the circuit simulation environment from National Instruments. It is widely used by designers, researchers, students, academicians, professionals. Its rich features are tailored according to the needs of different profiles. In designers version it has features such as
(a)    Industry standard component list: which helps the design to be on par with industry standard components that are in manufactures catalogs.
(b)   Customized symbols: Designer is given the privilege to create his own symbols and make use of it in his/her design when standard symbols does not suit their needs.
(c)    Multiple designs: Designer can create complex circuits in multiple schematics and stills can work on all of them together. Compare and simulate their results.  
(d)   Interface with other simulation environment: Designer can interface with other simulation environment such as PSPICE using Spectre.
(e)    Advanced analysis of the circuit: it helps in going to minute details of circuit.  Studying the minute details will help greatly to design efficient circuits.
(f)    Easy to debug, reduces errors and ultimately an optimized circuit can be produced.

The student’s version of Multisim is made available for free but with limited access to components lists, circuit simulation tools etc., The Student version of MultiSim has a variety of features such as
(a)    Easy to draw schematics : From the given component list students can easily draw the circuit.It is easy to locate different components that are readily available
(b)   3D animations: 3D animations of prototype board, circuit components help students to easily interpret with real components. It helps students enjoy learning.
(c)    Easy to do circuit simulations: Circuit simulation is simple. And students can easily verify their manually done results with circuit simulation results.
(d)   Better understanding of theory: It helps students to visualize circuits and understand the theory behind it. Hands on experiences in building the circuits will reinforce the better understanding of the theory.
(e)    Student Design Projects: Student version of MultiSim is provided with decent component lists, components list that are manufacturer specific ,which in turn gives student privilege to build academic design projects.
(f)     Integrating Multisim with NI ELVIS: MultiSim when integrated with NI ELVIS(National Instruments Educational Laboratory Virtual Instrumentation Suite) is very helpful in analyzing analog circuits.
(g)    Interfacing MultiSIm with NI My DAQ: When NI MultiSim integrated with Ni My DAQ students can simulate all kinds of circuits from complex to simple.


questions I need to  answer....

Limitations of currently available circuit simulations:


Why and how we can do it differently.


Overview of how we do it.






Reference
http://www.ni.com/

Please check the  essay and do corrections.






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