降低电压的

词组短语

step-down

与降低电压的相关的网络例句 [注：此内容来源于网络，仅供参考]

The results show that multilevel carrier arithmetic can efficiently reduce common-mode voltage,harmonic and the changing rate of output voltage.

仿真结果表明，多载波控制算法能够有效降低共模电压、谐波含量以及输出电压的变化率。

By using this method,9 switching states were ensured during a sampling period of the matrix converter,and the duration of each switching st...

实验结果表明，采用提出的空间矢量脉宽调制优化调节策略，不仅消除了输出电压中的错误脉冲，而且降低了输出电压的总谐波畸变率，在输出频率为15Hz时，THD降低约15%，有效地提高了矩阵式变换器的输出波形质量，保证了系统的安全可靠运行。

Also included is a discussion of reduced voltage motor starting techniques and useful references to world voltage standards, formulae, codes and standards and a glossary of terms.

其中还包括讨论降低电压电动机起动技术和有用的参考材料，为世界的电压标准，公式，法规和标准和术语表。

It is not overstated that transformer is the heart of electrical system. A step-up transformer is used to reduce the power losses, while the step-down transformer provides the various levels of voltage to the customers.

中文摘要变压器是供电系统的心脏，升压变压器为提升电压以减少线路损失，便利长距离输送；降压变压器为降低电压以提供各电压等级之用户使用，故扮演著极重要角色。

Log-domain companding technique takes advantage of the exponential I/V characteristics of the active devices such as bipolar junction transistors, compressing the dynamic range of the input sigal and reducing internal voltage amplitudes, it can maintain large dynamic range and high operating frequency under low supply voltage , the main area of application for this technique is the implementation of continuous-time fully integrated filters with low voltage, wide dynamic range, high-frequency, and wide tenability.

对数域压扩技术利用BJT晶体管等有源器件的指数Ⅰ-Ⅴ特性，对信号作对数压缩处理，大大降低了电路内部节点电压的摆幅，能在低电源电压下保持大信号动态范围和高工作频率，该技术的主要应用是设计具有低电压、宽调谐范围、高工作频率和宽动态范围特性的连续时间全集成滤波器——对数域滤波器。

The results shows that there are a significant decrease of oil content and an extreme significant of erucic acid content.

结果表明，较低电压的处理可提高硫甙含量，显著降低含油量，而较高电压的处理可降低硫甙含量，极显著降低芥酸含量。

This paper deals with the surge protection of a 220kV H—GIS and analyzes the effects of metal oxide surge attesters on reducing the incoming lightning overvolrages by means of numercal method Meanwhile, there is a kind of over-voltagey which may be rather critical for GIS, e·g·the switching surges with extremely high frequeuly produces by GIS-G switching-off of some loadless duses.

本文讨论220kV混合式GIS变电站过电压保护，用数值计算方法分析氧化锌避雷器对降低过电压的作用，并讨论了有一种类型的过电压可能对GIS要求更为严格，即在主回路中用GIS隔离开关切除空母线引起某些高频操作过电压，因此在绝缘配合时要相应考虑。

The efficiency of silver recovery and cyanide removal, as well as power consumption was discussed in terms of pulse voltage, pulse duty factor, and pulse frequency.

结果表明，脉冲电源较直流电源能更加有效降低阳极的超电位，减少电极的极化，从而降低槽电压，进而有效地降低电能消耗。

This paper attempts to associate PFC technology with Quasi-Resonant DC/DC Converter and Synchronous Rectifier technology, to work out a novel switching power supply with higher efficiency and low contamination, which both achieved high power factor, improved effecting on electrical network and ensured high efficiency, furthermore, it is easy to be realized and controlled in circuit.

本文首先阐述了开关电源、功率因数校正技术和同步整流技术的发展及现状，对DC/DC变换的拓扑结构进行了选择，确定了带有隔离的准谐振(Quasi-Resonant)反激型电路，可以有效地降低损耗；接着本文对几种常见的PFC拓扑电路进行分析对比，从中选择了BOOST型电路，对工作在临界状况下的电路进行了分析，采用跟随输入电压的升压变换新技术，减小了电感体积，同时降低了开关管的电压应力，既简单又有效地实现了功率因数校正，并发现此技术值得推广；由于反激型变换器的效率一般都较低，所以本文在传统同步整流技术基础上对其加以改进，设计出一种新颖、高效的同步整流方案。

Firstly, we investigate the influence of the hole injection layer on the performance of the OLED. Evidence shows that m-MTDATA exhibits a dense film structure and fine surface morphology, leading to easy hole migration. Furthermore, a low-voltage driving of OLEDs has been achieved by doping 4F-TCNQ into m-MTDATA layer. Secondly, we obtain a highly efficient OLED by using a new oxidiazoles, an efficient electron-transporting molecular materials. Finally, we have realized the efficient electron injection and transport in organic light-emitting diodes using an electron-transport layer composed of BPhen with Liq co-deposited layer. With this cohost strategy, we improve the power efficiency by～21 % while reduce the driving voltage by～13%.

首先研究了不同空穴传输层对有机电致发光器件的影响，结果表明，由于m-MTDATA具有良好的成膜性，以及空穴注入能力，可以改善空穴向发光层的注入，提高了器件的效率，进一步在m-MTDATA中掺入4F-TCNQ可以显著降低器件的驱动电压；其次，利用一种新型含氟噁二唑类衍生物做电子注入层获得了高效有机薄膜电致发光器件；最后，研究了Bphen：Liq混合层的电子传输特性，表明混合层的电子传输能力显著提高，基于共基质电子传输层的器件的电压比传统器件降低了13％而效率却提高了21％。

与降低电压的相关的网络解释 [注：此内容来源于网络，仅供参考]

FOM：质量因数

FAN2108采用快捷半导体的PowerTrench MOSFET制程设计,具有极低的质量因数 (FOM) 以降低传导和开关损耗. 在12V输入电压和8A负载电流条件下,FAN2108在3.3V输出电压下能实现92%的效率,在1.8V输出电压下达到87%的效率;

fooling：欺骗

电路的功能是加载一个 2V 电压至 VSENSE 引脚,该引脚在上电期间会欺骗 (fooling) 电压放大器. 当升压达到其调节输出电压的 75% 时,这种做法将会导致 Q1 的栅极驱动关闭,从而降低上电期间输出端的过冲峰值数量.

overpotential：过电压

由于甲醇穿透现象,使得电池通过电压(overpotential)增高,可使用电位多在0.4V以下,电池效率因而受限,同时也造成燃料损耗. 目前甲醇穿透的问题朝二个方向解决:发展质子交换膜材料技术,使之具备高质子导电率及降低甲醇穿透率;控制甲醇燃料的浓度,

ripple voltage：纹波电压

这些PFC/PWM控制器将PFC和PWM集成在一个集成电路中,从而提高效率、增加可用的PFC带宽、减小纹波电压(ripple voltage)和输出电容的大小,并降低电磁干扰(EMI)和系统噪声.

threshold voltage：门限电压

需要注意的是,应变硅技术并未能解决晶体管门极微缩(scaling)的问题;当晶体管门极长度缩短,会使门限电压(threshold voltage)降低,进而产生"短通道效应"(short-channel effect),这时需要使用绝缘硅来控制这种效应的发生.

usage：用途

用途(Usage) 交流异步电动机在额定电压下起动时,初始起动电流往往超过额定电流很多倍,为了降低起动电流,减少对电网造成影响,常采用串联电抗器,来降低电动机的起动电流,交流电动机的起动过程时间很短,一般数秒钟至一分钟左右,

VA：电压放大器

RPROG通过在内部微调800Ω电阻器上建立VCC到电流放大器输入(CA)的电压降来设置程序电流. 当BAT端电位接近预置浮动电压时,电压放大器(VA)开始吸收电流并使通过RSENSE上的压降减小,从而使充电电流降低.

voltaic cell：伏打电池

2.伏打电池(voltaic cell)中电极附近由化学反应形成的产物,对电流增加电阻,且常常降低电池的电动势. 电子(electron)的反粒子. 防止粒子从势垒的一边过到另一边的电压最大值的范围. 根据经典理论,粒子要从势垒的一边过到另一边,

underbreathing：换气不足

under-voltage 降低电压的 | underbreathing 换气不足 | undercast air bridge 下行风桥

voltages：电压

而这关键技术能够在同一晶片上实现多重可变电压(voltages)的电压区块(power domain),也能够在无需颠峰效能时降低电路电压. Cadence益华电脑低功耗解决方案从早期的设计规划开始,涵盖前端设计、合成与实体设计实现,