I am a fourth-year student at New Zealand University. My name is Xu Ke. I have a project to generate a temperature dependent model for inductor, capacitor and diode by using PLECS. PLECS is software which acts as a toolbox for MATLAB. In my models, the temperature is very low, about negative 196 degree C (77K). So I am looking for ideas for cryogenic models.
1 Comment
Dr. Vincent Arp, Cryodata
October 30, 2008Unfortunately, I am not familiar with PLECS. So it is a little difficult to provide a good answer to you.
I recommend that you start by researching information on the how the properties of inductors, capacitors, and diodes change with temperature. Probably diodes are the most temperatures sensitive, since they use semiconductors to obtain their desired performance. So, to start, what can you find about the current-voltage properties of the diode semiconductors as a function of temperature?
I think that many, but not all, inductors and capacitors are not greatly affected by temperature, i.e, their capacitance and inductance may not change much.
After you have found the electrical properties of the individual components at low temperature, using PLECS for your low temperature circuit analysis probably would be no different than using it for an ordinary (room temperature) circuit. But we cannot help on that.
Cryogenic scientists generally are more familiar with refrigerants and materials of construction than with electrical properties (except for superconductors, at very much lower temperatures). I recommend that you research electrical engineering journals and references for your project.