SPWM modulation is the important way to improve the invert power supply voltage efficiency and reduce the harmonic component.
SPWM调制是提高逆变电源电压利用率和减少谐波分量的重要方法。
A practical calculation method is given. With the parameters of the impulse circuit the wave front and tail and the voltage efficiency can be calculated.
文中给出实用计算法，以便根据冲击回路参数估算操作波的波头、波尾和电压效率。
From the electrolysis efficiency of alcohol, propyl alcohol and butyl alcohol can be said that (1) Voltage grads and original concentration have strong bigger influence on the removal rate.
通过考察乙醇、丙醇和正丁醇的微电解效率可以得出：(1)电压梯度和初始浓度对电解结果都有较大的影响。
The decoder determines the optimum conversion ratio to improve the efficiency of system from the relation between the input and output voltage.
首先采用译码器对输入和输出电压进行判比，确定最优的转换系数，提高了系统的效率。
The electrolysis efficiency is high when voltage grad is high and original concentration is low.
从电解效率来说，电压梯度越高去除率越高，初始浓度越高去除率越低。
An analog maximum power point tracking (MPPT) controller integrated circuit (IC) based on open-circuit voltage method was proposed to enhance the photovoltaic conversion efficiency of solar cell.
为提高光伏电池的光电转换效率，设计一种基于开路电压法的光伏电池最大功率点跟踪(MPPT)控制芯片。
The variety of the output DC voltage is less than 0.3% and the efficiency is higher than 85%.
开关电源经试验验证性能良好，直流电压输出纹波不大于0.3%，效率高于85%。
The characteristics of OLEDs with various thicknesses of organic layer were compared in operating voltage and electroluminescent efficiency.
改变有机层的厚度，比较不同厚度下oled的各项性能的差异，包括工作电压，发光效率。
Reasonable matching of wafer and wire: the advanced matching of wafer improves average voltage in electric field and current density of wafer corona, which the dedusting efficiency is higher.
板线匹配更合理。先进的板匹配，有效地提高了电场平均电压和板电晕电流密度，收尘效率更高。
A new type of DC switch power which is possessed a DC voltage input and three DC voltage output, and is able to reach higher efficiency has been introduced in this paper.
本文介绍一种新型的直流开关电源，该电源是一种直流电压输入，三种直流电压输出，并能够达到相当高的效率。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
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。
To further enhance efficiency the voltage drop across the tracking regulators has been minimized.
要进一步提高效率，需最小化跟踪稳压器过程中的压降。
Meanwhile, the application of the permanent magnet synchronous generator, which is simple in structure, high in efficiency and reliability, is limited by the difficulty to adjust its output voltage.
稀土永磁同步发电机具有效率高、结构简单、可靠性高等一系列优点，但由于其电压调节困难，故应用受到限制。
It has high efficiency and output voltage stability, exchange ripple small, small size and light weight of the many advantages.
它具有效率高，输出电压稳定，交流纹波小，体积小和重量轻的许多优点。
The refrigeration efficiency also has close relation to the voltage and current of the thermopile.
热电堆的工作电压和电流与制冷效率也有着密切的关系。
Testing results show that the major factors affecting the deposition efficiency are the welding current, arc voltage and gas flow rate under the condition of same circuit inductance.
试验结果表明，在回路电感值不变的条件下，焊接电流、电弧电压和气体流量是影响熔敷效率的主要因素。
Can be designed into various form, the use of an integrated structure, can obtain higher output voltage and photoelectric conversion efficiency.
可以设计成各种形式，利用集成型结构，可获得更高的输出电压和光电转换效率。
Both theoretical analysis and experimental results show that the AC DC converter has high efficiency over a wide range of input voltage.
理论分析和实验结果表明，该转换器可以在较宽的输入电压范围内获得较高的转换效率。
In this system, Traction force can be gained through the motor voltage, current, efficiency and velocity of train.
在系统设计中，机车牵引力通过牵引电动机电压、电流、效率以及机车速度进行计算。
Traditional phase-controlled rectifying power supply is being replaced by the switching one, which is characterized by high precision, low voltage ripple and high efficiency.
电力系统中传统的相控整流型电源正在逐步被具有高精度、低纹波、高效率等特性的开关电源取代。
Because of the effect of parasitic elements the output voltage and power transfer efficiency of DC-DC converters are limited.
由于寄生参数的影响，DC - DC升压变换器的输出电压和功率传递效率受到限制。
The factors that have influences on current efficiency and cell voltage in electrolysis of sodium sulfate are studied so as to find out the optimal operating conditions.
文章研究了在电渗析硫酸钠过程中，影响电流效率和槽电压的各因素对它们的影响规律，从而找到较好的电渗析条件。
Compensating reactive power reasonably can keep system's stable voltage level effectively, so reduces the active loss, improves system's efficiency of power supply.
只有做到合理补偿无功功率，才能有效地维持和稳定系统电压水平，从而降低有功损耗，提高系统供电效率。
Compared with the conventional design of ten-valued circuits, the design has the characteristics of high coding efficiency, low voltage supply, etc.
与以往十值电路的设计方法相比较，此设计方案具有编码效率高、供电电压低等特点。
Increasing the efficiency of DC voltage can be helpful to increase the output voltage of the inverter.
提高直流电压利用率可以提高逆变器的输出能力。
Experiment result showed, the topology can make the device get to high Power Factor (PF), low Total Harmonic Distortion (THD) of input current, low ripple of output voltage, and high efficiency.
实验结果表明，应用该电路拓扑的实验装置，其功率因数较高，输入电流的总谐波畸变较低，输出电压纹波小，而且整个装置的效率也比较高。
Switching voltage regulator, with its distinctive features of high level of integration, simple peripheral circuit and high efficiency, has been widely used in many electronic products.
开关稳压电源具有集成度高、外围电路简单、电源转换效率高等优点，在各种电子产品中得到广泛的应用。
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.
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。
With a matrix structure and computer-aided automatically conversion of testing voltage, the testing efficiency has been greatly improved and a good data repeatability obtained.
由于采用阵列结构，计算机自动转换测量电压，测试效率大为提高，测得数据重复性好。
Makesthe workflow technology of batch data processing apply to voltage guidelinemanagement, has improved the efficiency and quality of voltage management andlightened the work load of manager greatly.
将批量数据处理的工作流技术，应用于电压指标管理，较好的提升了电压指标管理工作效率和质量，大大减轻了管理人员的工作负担。
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