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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 ISSN 0278-0046.

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Official URL: http://dx.doi.org/10.1109/TIE.2014.2347936

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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 and Medicine > Engineering > 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:
DateEvent
March 2015Published
14 August 2014Available
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
Date of first compliant deposit: 13 June 2016
Date of first compliant Open Access: 13 June 2016
Funder: Engineering and Physical Sciences Research Council (EPSRC)
Grant number: (EP/L007010/1) (EP/K034804/1)

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