Results 41 to 50 of about 9,101 (169)

A novel D-Iatch design based on RTD(基于RTD的新型D锁存器设计)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
共振隧穿二极管(RTD)作为一种较成熟的量子器件,具有独特的负内阻特性,由RTD组成的单双稳态转换逻辑单元(MOBILE)能够很好地利用该特性进行数字电路设计.基于MOBILE,设计了一种新的RTD输出控制电路.该电路的优点是将RTD的正向和反向电流电压特性相结合,无须使用面积较大的三端器件,电路设计较便捷.采用RTD输出控制电路和HEMT器件,设计了一种新的D锁存器.该D锁存器采用高电平偏置电压,不仅可使MOBILE获得需要的高电平触发方式,而且电路具有自锁特性.HSPICE仿真实验证明 ...
YAOMaoqun(姚茂群)   +2 more
doaj   +1 more source

The Design and Implementation of Distribution Automation Terminal Integrated Platform [PDF]

open access: yes, 2015
配电网自动化是我国经济建设和发展的必然趋势。当配电网发生故障或者异常状况时,配电自动化终端装置能够快速切除故障线路、隔离故障区域,从而缩短停电时间、减少停电面积。本文对配电自动化终端进行研究,通过分析配电自动化终端产品的特点,设计并制作出一台配电自动化终端综合平台样机,通过实验对其功能和保护算法进行验证。 首先,对配电自动化终端的应用场合和功能需求进行分析,结合市场上现有的产品的特点,提出了配电自动化终端综合平台的功能需求。在明确功能需求的基础上提出了基于CAN总线和可插拔板卡式结构的系统设计方案 ...
黄堤彬
core  

Hierarchical Strengthening Design in AlCrCuFeNi2.5/CuCrZr Composites Enables Strength–Ductility–Conductivity Synergy

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Developing Cu‐based composites that simultaneously achieve ultra‐high strength, ductility, and electrical conductivity remains critical for advanced electrical contact applications. In this work, multiphase AlCrCuFeNi2.5 high‐entropy alloy (HEA) reinforcements are incorporated into CuCrZr matrix via spark plasma sintering (SPS) and annealing ...
Tao Hong   +8 more
wiley   +1 more source

The study of bidirectional DC-DC converter in the DC microgrid [PDF]

open access: yes, 2016
作为新能源的有效利用方式之一的直流微电网没有无功功率的损耗,不需要跟踪频率和相位,可靠性和可控性有较大程度的提高,更适合分布式能源的接入和应用。双向DC-DC变换器承担着母线与储能之间能量双向流动的重要作用。同时,它还可以作为直流微电网之间的互联元件,具有十分重要的研究价值。 本文针对全桥拓扑结构的双向DC-DC变换器展开较为深入的研究。 首先,详细分析了在移相控制方式下,双向DC-DC变换器的在降压方向和升压方向的工作原理及零电压开关(ZVS,Zerovoltageswitching)的具体过程 ...
纪承承
core  

Redox Reaction and Dissolution Analysis for Hollow C Nanospheres Comprising N‐Doped C Framework With Abundant Ni–Co Heteronuclear Catalysts for Highly Durable K‒Te Batteries

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Tellurium (Te), emerging as a promising alternative to sulfur (S) and selenium (Se), offers significant advantages for potassium (K) ion storage due to its comparable theoretical volumetric capacity (2619 mAh cm−3) and higher electronic conductivity (∼102 S m−1), which promotes rapid charge transfer and improves reaction kinetics.
Sung Woo Cho   +7 more
wiley   +1 more source

An unified approach for designing and teaching of latch, monostable circuit and multivibrator(基本触发器、单稳态电路及多谐振荡器的统一设计和教学方法研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
针对一般教科书缺乏对基本触发器、单稳态电路及多谐振荡器设计方法的论述问题,从电路存储信号需求出发,研究了基本触发器、单稳态电路及多谐振荡器间的内在联系,发现通过在基本触发器的支路中接入电容,由电容的充放电实现单稳态电路及多谐振荡器,从而提出了基本触发器、单稳态电路及多谐振荡器的统一设计方法,并在课堂上讲授。这不仅有利于学生学习和掌握这3种电路的设计方法,深入理解这3种电路的工作原理,而且可培养学生探索事物本质及其内在联系的能力。
SHENJizhong(沈继忠)
doaj   +1 more source

Design of a six bit full differential successive approximation analog to digital converter with 40M [PDF]

open access: yes, 2015
当今社会信息产业发展迅猛,性能优良、低成本的片上系统在集成电路设计领域中越来越受到人们的重视,且芯片上能够集成的功能越来越多,这其中就包括各种各样的模数转换器。在通信过程中,电子产品往往依赖强大的大规模集成电路技术在数字域对信号进行高效的分析和处理,而最初输入的信号却是模拟信号,模数转换器能将模拟信号有效转换成与之对应的数字信号,因而起着非常关键的作用,它的性能往往决定着产品的整体性能。 在北斗多模导航片上系统SOC的ADC设计中,我们需要在保证较大的jammer情况下能无失真采样 ...
邹佳
core  

Continuous Stress Annealing Enables Ultralow‐Loss Fe‐Based Amorphous Alloys With Superior Magnetic Softness for Industrial Manufacturing

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Fe‐based amorphous alloys are attractive soft magnetic materials for next‐generation power electronics, yet simultaneously achieving high saturation magnetic flux density (Bs), low coercivity (Hc), and low core loss under scalable processing conditions remains challenging.
Zhi‐Jun Guo   +10 more
wiley   +1 more source

Research on control system of meibomian gland massage instrument based on C8051F960 MCU [PDF]

open access: yes, 2016
睑板腺功能障碍是引起蒸发过强型干眼症的主要原因。在我国,睑板腺功能障碍的发病率较高。本文针对睑板腺功能障碍治疗中最重要的步骤——热敷和睑板腺按摩,进行机电一体化研究,在已初步完成睑板腺按摩仪机械结构的基础上,进行睑板腺按摩仪控制系统研究,完成了相应控制电路板以及软件方案的设计,并进行了睑板腺按摩仪控制手柄外形设计。 该睑板腺按摩仪,通过按键进行控制,通过显示屏进行显示,同时具有非常人性的按键功能播报以及按摩环境参数播报功能,方便用户能够快速掌握按摩仪的使用。 睑板腺按摩仪控制系统包含以下模块:按键模块 ...
张学飞
core  

Mesoporous Hollow Carbon Spheres/Nanofibers Anchored With Conductive Bimetallic for Efficient Microwave Absorption

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT To break electromagnetic wave absorption (EMA) tech's single‐attenuation bottleneck, enhancing multi‐wave absorption synergy in composites is key for microstructure design. This study uses mesoporous hollow carbon spheres to make metal nanospheres with cobalt, iron, and nickel nanoparticles, then encapsulates them via electrospinning into a ...
Wei‐Lian Zhang   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy