Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ginger G. Walden"'
Autor:
Robert S. Howell, Ty McNutt, Stephen Van Campen, Ranbir Singh, Ginger G. Walden, Marc E. Sherwin
Publikováno v:
Materials Science Forum. :1139-1142
For the first time, large area 10 kV SiC power devices are being produced capable of yielding power modules for high-frequency megawatt power conversion. To this end, the switching performance and power dissipation of silicon carbide (SiC) n-channel
Publikováno v:
Materials Science Forum. :1191-1194
We have designed, simulated, fabricated, and characterized high-voltage 4H-SiC p-channel DMOS-IGBTs on 20 kV blocking layers for use as the next generation of power switching devices. These p-IGBTs exhibit significant conductivity modulation in the d
Publikováno v:
Materials Science Forum. :1143-1146
We compare the on-state and switching performance of high-voltage 4H-SiC n-channel DMOSFETs and p-channel IGBTs within a three-dimensional parameter space defined by blocking voltage, switching frequency, and current density. We determine the maximum
Publikováno v:
IEEE Transactions on Electron Devices. 55:1920-1927
The 4H-SiC p-channel IGBTs designed to block 15 and 20 kV are optimized for minimum loss (on-state plus switching power) by adjusting the parameters of the JFET region, drift layer, and buffer layer, using 2-D MEDICI simulations. Switching loss exhib
Publikováno v:
IEEE Transactions on Electron Devices. 55:1928-1933
The turnoff behavior of high-voltage 4H-SiC p-channel insulated gate bipolar transistors is investigated by 2-D numerical simulations. Minority carrier lifetime in the nonpunch-through buffer layer is found to be the major factor determining switchin
Publikováno v:
Materials Science Forum. :1449-1452
We compare the on-state characteristics of five 4H-SiC power devices designed to block 20 kV. At such a high blocking voltage, the on-state current density depends heavily on the degree of conductivity modulation in the drift region, making the IGBT
Publikováno v:
2009 IEEE International Electron Devices Meeting (IEDM).
In this paper we present recent experimental results on SiC MOSFETs, IGBTs, and thyristors, and propose a consistent methodology for comparing unipolar and bipolar power devices as a function of blocking voltage and switching frequency.