Non-dissipative Undeland snubber for electric vehicle drive inverters using GaAs anti-parallel diodes

Girish R. Kamath, Ned Mohan, T. M. Undeland

Research output: Contribution to conferencePaper

4 Scopus citations

Abstract

The Undeland snubber with a simple energy recovery circuit combines both the simplicity of the conventional snubber while reducing the switching stresses in the switches and improving the overall efficiency of the power circuit. Experiments are conducted on a single-phase 1 kVA Mosfet inverter with GaAs anti-parallel diodes and operating from a DC bus of 135 V. The results are presented for operations in the hard-switched mode as well as with the regenerative Undeland snubber in operation. It is shown that the Undeland snubber improves efficiency as compared to the hard-switched mode of operation. Practical limitations and design considerations of the Undeland snubber in the presence of improved devices such as low-reverse recovery current diodes like GaAs diodes are also shown.

Original languageEnglish (US)
Pages748-752
Number of pages5
StatePublished - 1996
EventProceedings of the 1996 International Conference on Power Electronics, Drives & Energy Systems for Industrial Growth, PEDES'96. Part 1 (of 2) - New Delhi, India
Duration: Jan 8 1996Jan 11 1996

Other

OtherProceedings of the 1996 International Conference on Power Electronics, Drives & Energy Systems for Industrial Growth, PEDES'96. Part 1 (of 2)
CityNew Delhi, India
Period1/8/961/11/96

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    Kamath, G. R., Mohan, N., & Undeland, T. M. (1996). Non-dissipative Undeland snubber for electric vehicle drive inverters using GaAs anti-parallel diodes. 748-752. Paper presented at Proceedings of the 1996 International Conference on Power Electronics, Drives & Energy Systems for Industrial Growth, PEDES'96. Part 1 (of 2), New Delhi, India, .