This is an archived course. A more recent version may be available at


Electric Machines

Diagram that looks like a tire, but isn't.

Axial view of a surface mount motor from chapter 7 of the lecture notes. (Image courtesy of Prof. James Kirtley.)


MIT Course Number


As Taught In

Fall 2005



Translated Versions


Course Features

Course Description

6.685 explores concepts in electromechanics, using electric machinery as examples. It teaches an understanding of principles and analysis of electromechanical systems. By the end of the course, students are capable of doing electromechanical design of the major classes of rotating and linear electric machines and have an understanding of the principles of the energy conversion parts of Mechatronics. In addition to design, students learn how to estimate the dynamic parameters of electric machines and understand what the implications of those parameters are on the performance of systems incorporating those machines.

Archived Versions

Kirtley Jr., James. 6.685 Electric Machines, Fall 2005. (MIT OpenCourseWare: Massachusetts Institute of Technology), (Accessed). License: Creative Commons BY-NC-SA

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