Asee peer logo

Phasor Toolbox for AC Circuit Analysis Using MATLAB

Download Paper |


2018 ASEE Annual Conference & Exposition


Salt Lake City, Utah

Publication Date

June 23, 2018

Start Date

June 23, 2018

End Date

July 27, 2018

Conference Session

Electrical/Electronic ET Issues

Tagged Division

Engineering Technology

Page Count




Permanent URL

Download Count


Request a correction

Paper Authors


Jai P. Agrawal Purdue University Northwest

visit author page

Jai P. Agrawal is a professor in electrical and computer engineering technology at Purdue University, Calumet. He received his Ph.D. in electrical engineering from University of Illinois, Chicago, in 1991, dissertation in power electronics. He also received M.S. and B.S. degrees in electrical engineering from Indian Institute of Technology, Kanpur, India, in 1970 and 1968, respectively. His expertise includes analog and digital electronics design, power electronics, nanophotonics, and optical/wireless networking systems. He has
designed several models of high frequency oscilloscopes and other electronic test and measuring instruments as an entrepreneur. He has delivered invited short courses in Penang, Malaysia and Singapore. He is also the author of a textbook in power electronics, published by Prentice-Hall, Inc. His professional career is equally divided in academia and industry. He has authored several research papers in IEEE journals and conferences. His current research is focused on renewable energy technology, smart energy grid.

visit author page


Omer Farook Purdue University Northwest

visit author page

Omer Farook is a member of the faculty of Electrical and Computer Engineering Technology at Purdue University, Nothwest. Farook received the diploma of licentiate in mechanical engineering and B.S.M.E. in 1970 and 1972, respectively. He further received B.S.E.E. and M.S.E.E. in 1978 and 1983, respectively, from Illinois Institute of Technology. Farook’s current interests are in the areas of embedded system design, hardware-software interfacing, digital communication, networking, image processing, and biometrics, C++, Python, PHP and Java languages. He has a keen interest in pedagogy and instruction delivery methods related to distance learning. He has a deep commitment to social justice and in achieving economic and educational equity.

visit author page


Wangling Yu Purdue University Northwest

visit author page

Dr. Wangling Yu is an assistant professor in the Electrical & Computer Engineering Technology Department of the Purdue University Northwest. He was a test engineer over 15 years, providing technical leadership in the certification, testing and evaluation of custom integrated security systems. He received his PhD degree in Electrical Engineering from the City University of New York in 1992, specializing in control theory and electronic technology.

visit author page

Download Paper |




The paper expounds the research performed during teaching of AC Electric Circuit Analysis for Electrical and Computer Engineering Technology curriculum. Matlab is the computational and mod-elling engine of choice for the class. The course content consists of complex, polar and phasor nota-tions and their interconversions, mathematical operations for polar a phasor variables, plotting of phasor diagrams etc.

Introduction of MATLAB in the Engineering Technology program empowers the students in the early stage of their learning process. The authors have developed a tool box for Matlab platform that makes computation involving AC Circuit Analysis. Such a tool box does not exist within Matlab. This paper presents a MATLAB phasor toolbox for analyzing ac sinusoidal circuits in the Electrical and Computer Engineering Technology program. The toolbox has functions for conversion among complex, polar and phasor forms. It includes functions for adding, subtraction, multiplication and division of phasors, plotting phasors on the complex plane and in the time domain and many useful analysis.

The paper provides in details the code that is designed for twenty such functions, as a resource for fellow educators. The paper also provides the pedagogical underpinning and some samples of course work using the above toolbox.

Agrawal, J. P., & Farook, O., & Yu, W. (2018, June), Phasor Toolbox for AC Circuit Analysis Using MATLAB Paper presented at 2018 ASEE Annual Conference & Exposition , Salt Lake City, Utah. 10.18260/1-2--29643

ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2018 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015