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Wide bangap GaN power transistors can switch extremely quickly, e.g. current transitions in excess of 10 A/ns and voltage transitions in excess of 100 V/ns, but this presents a challenge in terms of keeping a system using such GaN transistors electromagnetically "quiet". With conventional gate driving techniques, to make transistors switch more "quietly", the transitions are slowed and losses increased (efficiency decreased). I am developing advanced gate driving techniques for wide bandgap GaN power transistors, aiming to eliminate any tradeoff between converter efficiency and electromagnetic compatibility.
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Pulse quietening at source for higher-frequency power and signal switching
Dalton, J. J. O., Dymond, H. C. P., Liu, D., Mcneill, J. N., Pamunuwa, I. D. B., Wang, J., Hollis, S. & Stark, B. H.
17/06/13 → 16/06/18
Project: Research
Research output
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Full custom design of an arbitrary waveform gate driver with 10 GHz waypoint rates for GaN FETs
Liu, D., Dymond, H. C. P., Hollis, S. J., Wang, J., Mcneill, J. N., Proynov, P. P. & Stark, B. H., 14 Dec 2020, In: IEEE Transactions on Power Electronics.Research output: Contribution to journal › Article (Academic Journal) › peer-review
Open AccessFile -
Building blocks for future dual-channel GaN gate drivers Arbitrary waveform driver, bootstrap voltage supply, and level shifter
Liu, D., Dymond, H., Wang, J. & Stark, B., 23 May 2019. 4 p.Research output: Contribution to conference › Conference Paper › peer-review
Open AccessFile143 Downloads (Pure) -
Stretching in Time of GaN Active Gate Driving Profiles to Adapt to Changing Load Current
Dalton, J., Dymond, H. C. P., Wang, J., Hedayati, M., Liu, D., Drury, D. & Stark, B. H., Feb 2019, 2018 IEEE Energy Conversion Congress and Exposition (ECCE 2018): Proceedings of a meeting held 23-27 September 2018, Portland, Oregon, USA. Institute of Electrical and Electronics Engineers (IEEE), p. 3497-3502 6 p. 8557531Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)
Open AccessFile