Results 231 to 240 of about 21,213 (253)
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Japanese Journal of Applied Physics, 2015
In this paper, a 4H-SiC trench MOS barrier Schottky (TMBS) rectifier with an enhanced sidewall layer (ESL) is proposed. The proposed structure has a high doping concentration at the trench sidewall. This high doping concentration improves both the reverse blocking and forward characteristics of the structure.
Doohyung Cho +5 more
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In this paper, a 4H-SiC trench MOS barrier Schottky (TMBS) rectifier with an enhanced sidewall layer (ESL) is proposed. The proposed structure has a high doping concentration at the trench sidewall. This high doping concentration improves both the reverse blocking and forward characteristics of the structure.
Doohyung Cho +5 more
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High current characteristics of asymmetrical p-i-n diodes having low forward voltage drops
IEEE Transactions on Electron Devices, 1976A closed form solution for the forward characteristics of a very asymmetrical step-junction p-i-n diode at high current levels is derived and discussed. It is found that the forward voltage decreases significantly when the amount of the impurities per unit area of one of the highly doped regions is reduced.
M. Naito, H. Matsuzaki, T. Ogawa
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Proceedings of the 10th International Symposium on Power Semiconductor Devices and ICs. ISPSD'98 (IEEE Cat. No.98CH36212), 2002
A novel high voltage Schottky rectifier, called the graded doped trench MOS barrier Schottky (GD-TMBS) rectifier, is described in this paper. A linearly graded drift region doping profile is shown to result in a uniform electric field in the drift region, resulting in the ability to support blocking voltages proportional to the trench depth.
S. Mahalingam, B.J. Baliga
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A novel high voltage Schottky rectifier, called the graded doped trench MOS barrier Schottky (GD-TMBS) rectifier, is described in this paper. A linearly graded drift region doping profile is shown to result in a uniform electric field in the drift region, resulting in the ability to support blocking voltages proportional to the trench depth.
S. Mahalingam, B.J. Baliga
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38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003., 2004
The direct torque control (DTC) scheme is a new control scheme based on space vector theory. However, at low speed, the performance is not very good. The effect of forward voltage drop on DTC performance at low speed is analyzed and compensated in this paper. Modeling results show that the blindness to the forward voltage drop of the power switches may
null Lixin Tang, M.F. Rahman
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The direct torque control (DTC) scheme is a new control scheme based on space vector theory. However, at low speed, the performance is not very good. The effect of forward voltage drop on DTC performance at low speed is analyzed and compensated in this paper. Modeling results show that the blindness to the forward voltage drop of the power switches may
null Lixin Tang, M.F. Rahman
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Materials Science Forum, 2006
For SiC devices capable of blocking very high voltages (>4kV), it becomes imperative to use bipolar devices because of unacceptably large on-state losses of unipolar devices. The IGBT offers the potential for high current density operation and ease of turn off using a MOS gate structure.
Lin Zhu, T. Paul Chow
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For SiC devices capable of blocking very high voltages (>4kV), it becomes imperative to use bipolar devices because of unacceptably large on-state losses of unipolar devices. The IGBT offers the potential for high current density operation and ease of turn off using a MOS gate structure.
Lin Zhu, T. Paul Chow
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2017 16th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2017
Commercially available light emitting diodes (LEDs) that have high efficiencies and long lifetime are offered in advanced packaging technologies. Many cooling systems were developed for current LED systems that enable a better removal of heat than counterpart devices offered earlier this decade.
Muslu, Ahmet Mete +3 more
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Commercially available light emitting diodes (LEDs) that have high efficiencies and long lifetime are offered in advanced packaging technologies. Many cooling systems were developed for current LED systems that enable a better removal of heat than counterpart devices offered earlier this decade.
Muslu, Ahmet Mete +3 more
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2007 7th Internatonal Conference on Power Electronics, 2007
The performance of direct torque control (DTC) interior permanent magnet (IPM) machines at low speed is poor due to a few reasons, namely limited accuracy of stator voltage acquisition and the presence of offset and drift components in the acquired signals.
Saad Sayeef, M. F. Rahman
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The performance of direct torque control (DTC) interior permanent magnet (IPM) machines at low speed is poor due to a few reasons, namely limited accuracy of stator voltage acquisition and the presence of offset and drift components in the acquired signals.
Saad Sayeef, M. F. Rahman
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6.2KV 4H-SiC pin Diode with Low Forward Voltage Drop
Materials Science Forum, 2000Yoshitaka Sugawara +3 more
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The Influence of Anodic Transition Structures of Power Devices for Forward Voltage Drop
Известия высших учебных заведений. Электромеханика, 2015Vladimir Lozovskiy +2 more
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Portable instrument for measuring the forward voltage drop of semiconductor power devices
Measurement Techniques, 1980V. M. Bardin +3 more
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