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Accurate analytical modeling for switching energy of PiN diodes reverse recovery
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Jahdi, Saeed, Alatise, Olayiwola M., Ran, Li and Mawby, P. A. (Philip A.) (2015) Accurate analytical modeling for switching energy of PiN diodes reverse recovery. IEEE Transactions on Industrial Electronics, 62 (3). pp. 1461-1470. doi:10.1109/TIE.2014.2347936
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Official URL: http://dx.doi.org/10.1109/TIE.2014.2347936
Abstract
PiN diodes are known to significantly contribute to switching energy as a result of reverse-recovery charge during turn-off. At high switching rates, the overlap between the high peak reserve-recovery current and the high peak voltage overshoot contributes to significant switching energy. The peak reverse-recovery current depends on the temperature and switching rate, whereas the peak diode voltage overshoot depends additionally on the stray inductance. Furthermore, the slope of the diode turn-off current is constant at high insulated-gate bipolar transistor (IGBT) switching rates and varies for low IGBT switching rates. In this paper, an analytical model for calculating PiN diode switching energy at different switching rates and temperatures is presented and validated by ultrafast and standard recovery diodes with different current ratings. Measurements of current commutation in IGBT/PiN diode pairs have been made at different switching rates and temperatures and used to validate the model. It is shown here that there is an optimal switching rate to minimize switching energy. The model is able to correctly predict the switching rate and temperature dependence of the PiN diode switching energies for different devices.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
| Divisions: | Faculty of Science > Engineering | ||||||
| Library of Congress Subject Headings (LCSH): | PIN diodes -- Mathematical models | ||||||
| Journal or Publication Title: | IEEE Transactions on Industrial Electronics | ||||||
| Publisher: | IEEE | ||||||
| ISSN: | 0278-0046 | ||||||
| Official Date: | March 2015 | ||||||
| Dates: |
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| Volume: | 62 | ||||||
| Number: | 3 | ||||||
| Page Range: | pp. 1461-1470 | ||||||
| DOI: | 10.1109/TIE.2014.2347936 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||
| Grant number: | (EP/L007010/1) (EP/K034804/1) |
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