Results 301 to 310 of about 4,766,046 (338)

High-Density NAND-Like Spin Transfer Torque Memory With Spin Orbit Torque Erase Operation

IEEE Electron Device Letters, 2018
We present a NAND-like spintronics memory (NAND-SPIN) device for high-density non-volatile memory applications. Fast erasing and programming of magnetic tunnel junction (MTJ) are implemented with two unidirectional currents generating spin orbit torque (SOT) and spin transfer torque (STT), respectively.
Zhaohao Wang, Lei Zhang, Mengxing Wang, Zilu Wang, Daoqian Zhu, Youguang Zhang, Weisheng Zhao   +6 more
openaire   +1 more source

A Limited Angle Torque Motor Hybrid Structure to Improve Torque Density

The transactions of The Korean Institute of Electrical Engineers, 2022
Jin-Yeong Shin, Soon-O Kwon, Ho-young Lee, Gi-Ju Lee, Seung-young Yoon, Hong-Soon Choi   +5 more
openaire   +1 more source

A High Torque Density MEMS Magnetic Induction Machine

2001
Most micro-scale electric and magnetic machines developed over the last decade lack the torque and power density to support many practical applications. The micro-scale magnetic induction machine reported here attempts to transcend this practicality barrier by offering a torque density exceeding 15% of that exhibited by macro-scale magnetic machines ...
H. Köşer, F. Cros, M. G. Allen, J. H. Lang   +3 more
openaire   +1 more source

High torque density induction motor with integrated magnetic gear

2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016
This paper presents a design process to integrate a magnetic gear with an induction machines. The resulting integrated machine has the potential to offer a high torque density with asynchronous speed characteristics. Such characteristics may be desirable for applications that require sensorless operation or may be subject to severe backlash or jamming.
Dalia Zaky Abdelhamid, Andrew M. Knight
openaire   +1 more source

An Approach to Maximize Torque Density in a Brushless Doubly-fed Reluctance Machine

European Conference on Cognitive Ergonomics, 2019
A brushless doubly-fed machine (BDFM) is an attractive option for megawatt-scale turbo-electric propulsion systems due to use of a partially-rated power converter, reduced maintenance, and absence of permanent magnets.
Shivang Agrawal, A. Province, A. Banerjee   +2 more
semanticscholar   +1 more source

Nanostructured insulation for high torque density electric propulsion motors

2017 IEEE Electric Ship Technologies Symposium (ESTS), 2017
It has been identified in ONR Next Generation Integrated Power System (NGIPS) Roadmap that fundamental research in dielectric insulation research enables payload efficiency and affordable high power density of integrated electric propulsion motors.
Hiep Nguyen, Yiqi Liu, Weiqiang Chen, Mona Ghassemi, Jack Chapman, Ali Bazzi, Yang Cao   +6 more
openaire   +1 more source

Performance of Halbach Cycloidal Magnetic Gears with Respect to Torque Density and Gear Ratio

International Electric Machines and Drives Conference, 2019
This paper investigates the volumetric torque density performance of a radial and an axial cycloidal magnetic gear when using a Halbach magnet rotor typology.
Hailin Huang, R. Qu, J. Bird
semanticscholar   +1 more source

Torque Density Enhancement of 6/4 Variable Flux Reluctance Machine With Second-Harmonic Current Injection

IEEE transactions on energy conversion, 2019
Variable flux reluctance machines (VFRMs) are developed as magnetless electrical machines. To extend the application of VFRMs, the enhancement of torque density is a key during machine design.
Jianghua Feng, Liren Huang, Z. Zhu, Shuying Guo, Junxu Shi   +4 more
semanticscholar   +1 more source

Stator Shape Optimization for Electrical Motor Torque Density Improvement

Journal of Magnetics, 2016
The shape optimization of the stator and the rotor is important for electrical motor design. Among many motor design parameters, the stator tooth and yoke width are a few of the determinants of noload back-EMF and load torque. In this study, we proposed an equivalent magnetic circuit of motor stator for efficient stator tooth and yoke width shape ...
Hae-Joong Kim, Youn Hwan Kim, Jae-Won Moon   +2 more
openaire   +1 more source

A Compact High Torque Density Dual Rotor Permanent Magnet In-Wheel Motor With Toroidal Windings

International Conference on Electrical Machines and Systems, 2019
Wheel hub drive system has received more interests in an industrial area due to its attractive features. A low speed direct drive electric motor is needed to directly connect to the wheel.
Zhiwei Zhang
semanticscholar   +1 more source