这种新电池的特点是,虽然变换效率只有8%—10%,但价格便宜。
The new battery characteristics are, although transformation only 8%-10% efficiency, but the price is cheap.
在非接触电能传输系统中,变压器的耦合系数直接关系到系统的变换效率。
Coupling coefficient (k) of a transformer is a key parameter affecting the efficiency of a contactless energy transmission system.
采用德国西门子IGBT变频,电压反馈串联谐振电路。变换效率高达97.5%以上。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
通过数值求解耦合波方程,研究了半导体光放大器弛豫时间对四波混频波长变换效率的影响。
This dissertation is devoted to effects of relaxation times on wavelength conversion efficiency based on four-wave mixing(FWM) in semiconductor optical amplifier(SOA).
开关稳压电源的调整工作在开关状态,主要的优越性就是变换效率高,可达70% 95%。
The work of switching power supply are adjusted in the on-off state, the main advantage is higher efficiency, up to 70% 95%.
通过实验验证电路实现了设计要求的全部基本指标,并且DC - DC变换效率达到85%。
Has realized the design requirements through the experimental verification electric circuit completely the basic quota, and the DC-DC conversion efficiency achieves 85%.
由于以分 立的形式连接主电流通路和栅极驱动通路,因此可以减小寄生电感的影响,并提高电压变换效率。
Owing to the connection of the main current path and the gate driving path in discrete form, the influence of parasitic inductance can be reduced and voltage conversion efficiency can be improved.
传统的可调整线性电源在输出电压低时,电源的大部分额定功率耗费在电源内部,变换效率很低,而且体积庞大笨重。
At low output voltage, the majority of the rated power of traditional adjustable linear power supply is wasted in the internal power supply and the conversion efficiency is low with huge volume.
试验结果表明,这种变换器具有电路拓扑简单、功率密度高、变换效率高、功率因数高、不间断供电、成本低等优点。
Test results demonstrated that the converter has the advantages of simple topology, high power density, high conversion efficiency, high power factor, uninterruptible power supply, low cost.
随着逆变器输出性能和功率密度需求的不断提高,如何在较高开关频率下进一步提升逆变器的变换效率,显得越来越重要。
As the requirements for higher power density and output performance, how to keep the inverter at a relative higher efficiency at higher switching frequency is becoming more and more important.
津田说,太阳反射器变换姿态每天大约只有一度,而且转动越快效率越差。
The sail can only change its attitude by about 1 degree per day, Tsuda says, and it gets less effective the faster the sail spins.
实验结果表明,该变换器具有高效率、低电磁干扰等特性。
The experiment proves that the converter possesses high efficiency and low EMI.
在澄清嗓音源概念的基础上提出了一种以嗓音源变换函数为基础的声门发声效率估计方法。
This investigation was designed to approach a novel estimation method of glottal vocal efficiency(GVE) based on conversion function of voice source.
以电力电子变流技术为基础的能源变换系统具有风能利用效率高,动态响应快等特点。
The novel wind energy conversion system is characterized by high efficiency, fast dynamic response and so on.
对多横模全固态激光器使用正交频率变换进行了分析,计算了频率转换效率与激光发散角的关系。
The effect of multi transversal mode on quadrature frequency conversion in a solid-state laser was analyzed, and the relation between the conversion efficiency and the divergent angle was conducted.
论文同时分析了现有的电子邮件系统传输编码存在的缺陷,提出了一种利用编码效率高、数据扩展率低的数字数据变换方法:基数- 91编码来提高编码效率。
Meanwhile the paper analyzes the deficiency of current transmission coding and describes a new data transformation method, base91 coding with high encoding efficiency but low data extension.
这样,大大地减小了变换装置的体积和重量,提高了效率,减小了听觉噪声。
So, the power supply system has reduced weight and volume with increased efficiency and decreased noise.
采用一种新的设计方案,研制、组装成一套具有高光学传输效率的傅里叶变换红外磁光光谱测试系统。
The FT-IR magneto-optical spectrometer with high optical transportation efficiency was developed by adopting a novel design. In the present paper, its construction and characteristics are described.
通过矩阵变换,利用矩阵对称性、子结构等方法改进精细积分计算效率。
Utilizing the symmetry of matrices and the idea of substructure, the computational precision and efficiency of the PIM are improved.
实验结果表明该方法的编码效率优于离散余弦变换编码。
The experimental results show this method could give better coding efficiency than the traditional DCT image coding.
对变换器中的主变压器和输出电感进行集成,得到高效率、高功率密度的有源箝位正激变换器。
By integrating the main transformer and output inductor with magnetics integration technique, an ACFC with high efficiency and high power density was obtained.
利用提升矩阵,实现了整型DCT变换,进一步提高了运算效率的同时,使信号可精确重构。
The integer DCT was implemented by lifting matrix to promote efficiency, and the transformed signal could be reconstructed completely.
采用功率MOSFET取代普通二极管或肖特基二极管的同步整流技术,可以使低压大电流变换器的效率得到极大的提高。
Applying the synchronous rectifier technology in which MOSFET replaces common diodes or schottky diodes can increase the efficiency of low-voltage, great-current transformer.
采用体视变换矩阵的方法进行体视变换,可使程序变得更加简洁,提高了模拟系统的效率和可靠性。
Using matrix to process stereoscopy transformation, the program will be more laconic and the simulation system will be more reliable, and its efficiency is higher.
双空间矢量调制两级协调控制能实现整流级零电流换流,极大地减少了开关损耗,提高了变换器的效率。
Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.
软开关技术能够有效改善功率开关管的工作环境,降低开关损耗,提高变换器的效率。
Soft switching technique could improve the circumstance of the power switch, reduce the losses and increase the efficiency of the converter.
该变换器完成从正电压至正和负电压的DC- DC升压变换,功率密度和效率高,拓扑结构简单价廉。
These converters perform from positive to positive and negative DC DC voltage increasing conversion with high power density, high efficiency and cheap topology in simple structure.
受寄生元件的影响,DC - DC升压变换器的输出电压和功率传递效率受到限制,电压举升技术为改善电路特性提供了好方法。
Since the effect of parasitic elements limits the output voltage and power transfer efficiency of DC-DC converters, voltage lift technique opens a good way to improve circuit characteristics.
对系统中多重结构的DC/DC变换器使用了控制型软开关技术,达到了进步效率、减小损耗的目的。
Multiple structures of the system's DC/DC converters used to control type soft switching technology to achieve efficiency reduce wear and tear purposes.
对系统中多重结构的DC/DC变换器使用了控制型软开关技术,达到了进步效率、减小损耗的目的。
Multiple structures of the system's DC/DC converters used to control type soft switching technology to achieve efficiency reduce wear and tear purposes.
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