Results 171 to 180 of about 230 (201)

Reversible Conductive Hearing Loss: Restored Activity in the Central Auditory System

Audiology and Neurotology, 2008
The effect of a reversible, unilateral hearing loss on 2-deoxyglucose (2-DG) uptake in the central auditory system was studied using young gerbils. All animals had a unilateral conductive hearing loss (CHL), induced by atresia, on postnatal day 21 (P21).
K A, Hutson, D, Durham, D L, Tucci
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A Reverse Conducting IGBT with low on-state voltage and turnoff loss

2012 IEEE 11th International Conference on Solid-State and Integrated Circuit Technology, 2012
A low on-state voltage with fast turnoff speed named CSFP (Carrier Stored Floating P-region)-RC (Reverse Conducting) IGBT is proposed in this paper. By sandwich an n layer between the p-well and n-drift as a CS (Carrier Stored) layer, the carrier concentration at the top of the drift is tremendously increased, to make the entire device doping ...
Bo Jiang, Frank X. C. Jiang, Zhigui Li, Xinnan Lin   +3 more
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Experimental Evaluation of Dead Time Reverse Conduction Losses in Motor Drives Applications

2022
The paper deals with the dead-time impact on the reverse conduction of low-voltage GaN FETs in inverter topology for motor control applications. The current variation in AC motor drive leads to a different dead-time losses mechanism compared to the DC-DC converter.
Palma M., Musumeci S., Mandrile F., Barba V.   +3 more
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Behavioral and neurochemical alterations induced by reversible conductive hearing loss in aged male rats

Neuroscience Letters, 1996
Eighteen months old male rats of the Sprague-Dawley strain were subjected to a reversible conductive hearing loss (HL) or a sham operation. A series of behavioral tests performed 3 months after surgery, revealed a sustained deficit in learning and memory capacity and a marked depressive attitude of rats with HL.
DRAGO, Filippo, Musco S, Nardo L, Valerio C, Grassi M, RAMPELLO, Liborio   +5 more
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Continuous-conduction-mode SEPIC converter with low reverse-recovery loss for power factor correction

IEE Proceedings - Electric Power Applications, 2006
A continuous-conduction-mode SEPIC converter with low reverse-recovery loss is proposed for power factor correction. The proposed SEPIC converter can reduce the reverse- recovery loss of the diodes and improve the power efficiency. By utilising a coupled inductor and an additional diode, zero-current turn-off of the output diode is achieved.
Kwon, JM, Choi, WY, Lee, JJ, Kim, EH, Kwon, BH   +4 more
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Comparison of the power losses in 1700V Si IGBT and SiC MOSFET modules including reverse conduction

2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015
The paper presents a study of the power losses in 1700V rated half-bridge power modules applied in a 250kVA three-phase converter. Two types of the modules with comparable parameters (1700V/300A) are analyzed: the first one is based on Si IGBT and the second is built with SiC MOSFETs and Schottky diodes.
Jacek Rabkowski, Tadeusz Platek
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Reversing heat conduction loss: Extracting energy from bulk water to enhance solar steam generation

Nano Energy, 2020
Abstract Interfacial solar steam generation offers a sustainable and affordable technology for seawater desalination and water treatment. During solar steam generation the temperature of the solar evaporation surface is generally higher than the bulk water, which results in energy loss to the bulk water by heat conduction.
Yida Wang, Xuan Wu, Xiaofei Yang, Gary Owens, Haolan Xu   +4 more
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RC-GID IGBT – A novel reverse-conducting IGBT with a gate voltage independent diode characteristic and low power losses

2021 33rd International Symposium on Power Semiconductor Devices and ICs (ISPSD), 2021
In this paper, a new RC IGBT concept is proposed. By integrating Schottky contacts between the MOS cells, a permanent electron path is created. As a result, the emitter efficiency of the MOS cell in diode mode decreases significantly, and is mostly independent of the gate-emitter voltage.
Quang Tien Tran, Franz-Josef Niedernostheide, Frank Pfirsch, Anton Mauder, Roman Baburske, Hans-Gunter Eckel   +5 more
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Advanced High Voltage Reverse Conducting RC-IGBT Technology with Low Losses and Robust Switching Performance

2020 32nd International Symposium on Power Semiconductor Devices and ICs (ISPSD), 2020
In this paper, we report a 3300V RC-IGBT based on an advanced DMOS planar cell concept. In addition to the emitter cell concept, the RC-IGBT incorporates new design features including a robust cellular emitter layout design with dedicated diode cells and a gradual backside collector short layout design for snap-back free IV output characteristics.
Liheng Zhu, Munaf Rahimo, Haihui Luo, Qiang Xiao, Rongzhen Qin, Haibo Xiao, Pengfei Liu   +6 more
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Continuous-conduction-mode boost converter with reduced reverse-recovery loss

IEE Proceedings - Electric Power Applications, 2005
A continuous-conduction-mode boost converter with reduced reverse-recovery loss is proposed. By utilising the auxiliary winding of the boost inductor, two additional rectifiers and an auxiliary inductor, the current decrease rates (di/dt) of the boost output rectifier and two additional rectifiers are slowed down to reduce the reverse-recovery loss ...
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