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D-Mode GaN HEMT with Direct Drive

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dc.contributor.authorHeumesser, V.en
dc.contributor.authorLai, J. S.en
dc.contributor.authorHsieh, H. C.en
dc.contributor.authorHsu, J.en
dc.contributor.authorYang, C. Y.en
dc.contributor.authorChang, E. Y.en
dc.contributor.authorKo, H. K.en
dc.contributor.authorLiu, W. H.en
dc.contributor.authorLin, Y. M.en
dc.date.accessioned2024-02-26T17:37:53Zen
dc.date.available2024-02-26T17:37:53Zen
dc.date.issued2023-01-01en
dc.description.abstractA direct-driven gate driver circuit has been developed for the depletion-mode gallium nitride (d-mode GaN) high electron mobility transistor (HEMT), which is a'normally on'' device and is typically connected in series with a low-voltage power MOSFET to prevent shoot-through faults. The switching of such a''cascode'' device is substantially delayed due to a large MOSFET input capacitance. This paper introduces a charge-pump based direct-driven approach to provide a negative voltage in the gate drive loop so that the device becomes 'normally off The switching characteristics of the direct-driven HEMT is analyzed through computer simulation and hardware testing. Results indicate that the switching delays due to MOSFET gating is eliminated, and the voltage slew rate can be directly controlled by the gate resistance.en
dc.description.versionSubmitted versionen
dc.format.extentPages 1-6en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1109/WiPDAAsia58218.2023.10261911en
dc.identifier.isbn9798350337112en
dc.identifier.orcidLai, Jih [0000-0003-2315-8460]en
dc.identifier.urihttps://hdl.handle.net/10919/118158en
dc.language.isoenen
dc.publisherIEEEen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleD-Mode GaN HEMT with Direct Driveen
dc.title.serialWiPDA Asia 2023 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asiaen
dc.typeConference proceedingen
dc.type.dcmitypeTexten
dc.type.otherConference Proceedingen
pubs.finish-date2023-08-29en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Electrical and Computer Engineeringen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen
pubs.start-date2023-08-27en

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