Interactive Power Electronics Seminar (iPES)

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iPES-Circuits+ iPES-Thermal iPES-EMFields

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News and Info (December 20, 2002)

We have been late with this update, but now the new download version ipes_dec20_02 is available!

We did some minor corrections and changes of older applets. Furthermore, this is a list of new applets included in the latest download-version ipes_dec20_02:

iPES is now online for more than 1 year (the download version is available since January 2002). We had about 6,000 downloads, 39,000 visitors on the webpage (about 6,000 each month since summer 2002) and numerous universities, higher technical schools, and companies all over the world have started to use iPES. We are very happy about this success and we are strongly motivated to go on developing new applets and educational modules.

Prof. Nishida (Nihon University, Japan) will present the status of the iPES project especially considering the viewpoint of Japanese users at the PCIM China 2003.

We will have a paper on Thermal Design in Power Electronics at the APEC'03 aiming for supporting the applets of the iPES-Thermal educational module. On the iPES-webpage you currently could find applets and user information but no text on fundamentals and theory of power electronics. We are teaching power electronics basics based on a textbook which is currently under preparation and the applets are used in addition to conventional lecture material. This textbook and the lecture material will be made available to the public in near future.

A new applet on the switching behavior of voltage controlled power transistors is now online. There are performance problems with this applet on some NT- and Win2000-Systems (especially when used on a laptop). We will try to fix that soon. The new applet is placed in the "Resonant Converter"-section, but might be included in a new group of applets on the effects of circuit parasitics in the future.

In order to make the iPES more easily applicable on a world-wide basis symbols and denominations of voltages and currents will finally be in accordance to the IEEE standards. We currently work on this but it will take some time. At the moment there is no consistency among the circuit symbols employed in iPES but this will be corrected soon.

For papers related to iPES please visit the homepage of the Power Electronic Systems Laboratory (PES). For an overview of the iPES-project including plans for the future see

We do welcome all kind of feedback. In case you find mistakes or bugs, please tell us. Besides producing new content we continuously work on eliminating bugs, correcting mistakes and improving the performance of the Java applets to speed up simulation.


News Archive

We presented iPES at the EPE-PEMC’02 in Dubrovnik, Croatia, in September. There, we published a paper describing the basics of the finite element algorithm employed in some of the applets of the module iPES-EMFields.

After the distribution of the iPES-CD ROM at the PESC’02 in Australia, we got a lot of positive feedback from universities, technical schools and companies. See also www.pesc02.com.

Currently, new translations into French, Portuguese and Norwegian are being performed. We will put them online as soon as available.

Find an interesting collection of free educational material related to power electronics and energy at the official homepage of the EPE Education Chapter.

Some of the applets did not work with Windows XP even with the latest Java plug-in downloaded from the Sun Microsystems homepage. The same kind of problems did occur with Netscape 6.x and Opera. We have fixed this problem and the improved applets (including minor improvments of older applets) are now online.