Results 11 to 20 of about 3,160,518 (299)

A Performance Optimized CSTBT with Low Switching Loss. [PDF]

open access: yesMicromachines (Basel), 2023
A novel Performance Optimized Carrier Stored Trench Gate Bipolar Transistor (CSTBT) with Low Switching Loss has been proposed. By applying a positive DC voltage to the shield gate, the carrier storage effect is enhanced, the hole blocking capability is improved and the conduction loss is reduced.
Xu H, Feng T, Cui W, Yang Y, Zhang DW.
europepmc   +4 more sources

Task Switching in Predictable and Unpredictable Cases [PDF]

open access: yes, 2010
Fourteen experiments have been run in order to provide evidence regarding the cognitive processes that underlie the switching between simple cognitive tasks.
Andreadis, Nikolaos
core   +7 more sources

Performance evaluation of ZVS/ZCS high efficiency AC/DC converter for high power applications [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
The increased power density, reduced switching losses with minimum electromagnetic interference (EMI), and high efficiency are essential requirements of power converters.
A. Ali   +4 more
doaj   +1 more source

Advanced DPWM Method for Switching Loss Reduction in Isolated DC Type Dual Inverter With Open-End Winding IPMSM

open access: yesIEEE Access, 2023
This paper proposes an advanced discontinuous pulse-width modulation (DPWM) scheme for a dual inverter to reduce switching loss. A dual inverter is used to drive an open-end winding interior permanent magnet synchronous motor (OEW-IPMSM).
Hyung-Woo Lee   +2 more
doaj   +1 more source

Adaptive DC-Link Voltage Control for Shunt Active Power Filters Based on Model Predictive Control

open access: yesIEEE Access, 2020
DC-link voltage directly affects the compensation range and performance of shunt active power filters (SAPFs). DC-link voltage in SAPF is generally high, fixed, and dependent on rated power.
Juan Zhou, Yalei Yuan, Hao Dong
doaj   +1 more source

Analysis of Commutation Principle and Switching Loss for ANPC Three-level Topology

open access: yesKongzhi Yu Xinxi Jishu, 2022
Aiming at the problem that the unbalanced loss of internal and external transistors in NPC three-level topology affects the output power of power module.This paper introduces two different control methods based on ANPC type three-level topology ...
XIE Fei, ZHANG Honghao, ZHOU Xiaoyun
doaj   +3 more sources

Predictive control of high-power three-level PWM rectifier without weighting coefficient

open access: yesGong-kuang zidonghua, 2021
A high-power three-level PWM rectifier predictive control algorithm without weight coefficients is proposed for the problem of complicated design of the weight coefficients of the cost function in the traditional predictive control algorithm.
CHENG Weiwei, WU Rui
doaj   +1 more source

An Optimized Vertical GaN Parallel Split Gate Trench MOSFET Device Structure for Improved Switching Performance

open access: yesIEEE Access, 2023
This work proposes a vertical gallium nitride (GaN) parallel split gate trench MOSFET (PSGT-MOSFET) device architecture suitable for power conversion applications.
Nilesh Kumar Jaiswal, V. N. Ramakrishnan
doaj   +1 more source

± 180° Discontinuous PWM for Single-Phase PWM Converter of High-Speed Railway Propulsion System

open access: yesEnergies, 2020
As high-capacity alternating current/direct current (ac/dc) power conversion systems, single-phase pulse-width modulation (PWM) converters used in high-speed railway propulsion systems adopt high-voltage Insulated-Gate Bipolar Transistors (IGBTs) as ...
Min-Sup Song, In-Ho Cho, Jae-Bum Lee
doaj   +1 more source

A Low-Loss 1.2 kV SiC MOSFET with Improved UIS Performance

open access: yesMicromachines, 2023
In this article, a 1.2-kV-rated double-trench 4H-SiC MOSFET with an integrated low-barrier diode (DT-LBDMOS) is proposed which eliminates the bipolar degradation of the body diode and reduces switching loss while increasing avalanche stability.
Lijuan Wu   +5 more
doaj   +1 more source

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