Research Letter

A non-linear turn-off snubber for power electronic switches

C. G. Steyn, J. D. van Wyk
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 4, No 4 | a1048 | DOI: https://doi.org/10.4102/satnt.v4i4.1048 | © 1985 C. G. Steyn, J. D. van Wyk | This work is licensed under CC Attribution 4.0
Submitted: 18 March 1985 | Published: 18 March 1985

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C. G. Steyn,, South Africa
J. D. van Wyk,, South Africa

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Abstract

A novel suggestion for a non-linear turn-off snubber is simulated experimentally with linear capacitors and an auxiliary power electronic switch. Thus the principle and advantages of this concept is partly illustrated, particularly concerning the important reduction of reactive stored energy for the same switching dissipation in the main power device. The full advantages of the concept will be realised when a snubber capacitor with non-linear, voltage dependent dielectric is used. The work on this part of the solution is being continued.

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Crossref Citations

1. On the evaluation of ferroelectric nonlinear capacitors for application in power circuits
A.G.K. Lutsch, J.D. van Wyk, J.J. Schoeman
IEEE Transactions on Components, Hybrids, and Manufacturing Technology  vol: 12  issue: 3  first page: 352  year: 1989  
doi: 10.1109/33.35482