电源效率

采用IGBT直接实现整流及PWM调制，无需变压器，减少了能量转换环节，提高了电源效率。

A DC supply using IGBT to realize rectification and PWM without a transformer can improve power efficiency with less transformation .

其次，对H桥逆变及MOS管同步整流原理加以分析，并通过仿真证实了应用MOS管同步整流所带来的电源效率比快恢复整流二极管要高的多。

Secondly , to H bridge inverter and MOS tube synchronous rectifier principle , and analyzed by simulation confirm the application of synchronous rectifier brings MOS tube of power efficiency than fast recovery power diode to much higher .

芯片的电源效率可达87%，与以前设计的串联饱和型半导体照明LED恒流驱动芯片[1]相比提高近25%。

Efficiency of 87 % is readily achievable with improvement of nearly 25 % compared with the formerly designed DC mode constant current driving chip ~ [ 1 ] .

文中从时域和频域两个角度对此电路进行了详细的原理分析。采用所推荐驱动电路的36~75V输入，1.8V/60A输出，四分之一砖标准的模块电源效率高达90%以上。

The principle of operation and the characteristics of the scheme are analyzed in time domain and frequency domain , and verified on a 36V-75V input 1.8V/60A output experimental prototype , whose size is 1 / 4 brick and efficiency is above 90 % at rating condition .

同步整流器驱动方式对开关电源效率的影响

Influences of Driven Methods on Synchronous Rectifier of Switch-mode Power Supply

提高开关稳压电源效率的方法

The methods to raise the efficiency of switching voltage stabilizer

该恒流驱动芯片的电源效率可达63.4%。

The efficiency of the driver can reach up to 63.4 % .

纹波系数不大于0.5%，整个电源效率在85%以上。

The efficiency of the power-supply system is more than 85 % .

用DC/DC转换器最大化便携媒体播放器电源效率

Maximize Power Efficiency with DC / DC Converters in Portable Media Players

提高单片开关电源效率的研究

Study on Improving Efficiency for Single-chip Switch Power Supply

提高串联型开关稳压电源效率的途径

The Way to Increase Effciency of Serial Switch Supply

谈谈开关电源效率及开关噪声

Discussion on Efficiency and Noise of Switch Power

任何人在考虑业务成本或环境问题时都不得不重视电源效率。

Power efficiency is an important consideration for anyone concerned with business costs or environmental issues .

针对串联饱和型恒流驱动工作模式下电源效率低的不足，研究了脉宽调制型恒流驱动集成电路，使电源效率可提高至87%。

PWM constant current driving IC is designed to increase the power efficiency up to 87 % .

软开关技术可使小功率软开关电源效率得到提高。

The efficiency of small power soft switching source can be improved by the development of high frequency inverter .

在电池供电的设备中要求能尽量提高电池的使用寿命，即提高电源效率。

The service life of Battery-powered equipment is required as long as possible , so we must improve efficiency of power supply .

但是传统的可控硅电源效率低、功率因数低、稳定性差，阻碍了单晶硅质量的提高。

The traditional thyristor power supply hinder the improvement of quality because of low efficiency , low power factor and low accuracy .

同时给出了一种提高稳压电源效率，降低低端电压的实用电路。

A relevant practical circuit is advanced , which can not only raise the supply 's efficiency but also reduce the low potential terminal .

本文从理论上分析了影响开关电源效率的各种因素，并给出了提高效率的途径和方法。

This paper analyses kinds of reason that affect efficiency of serial switch supply from theory , and gives the way to increase the efficiency of serial switch supply .

本文就分析恒流模拟型晶体管弧焊电源效率问题着手，提出了开发开关型晶体管弧焊电源的必要性与合理性。

Starting from analysing the efficiency of constant current analogue-type transistor arc welding power source , the authors found that it is necessary and rational to develop a switch-type transistor arc welding power source .

在所有的线性化技术中，数字预失真技术具有电源效率高，成本低等优势，同时随着数字技术的高速发展，是目前最具发展前景的线性化技术。绿色巴夫藻与Pa。

Among all linearization techniques , digital predistortion is one of the most cost effective . With the development of the digital technology , digital predistortion technology become to the most potential technology for RF PA linearization .

另外，射频功率放大器是发射机中耗电最大的器件，因此，应尽可能让射频功率放大器工作在电源效率相对较高的区域，即接近射频功率放大器的饱和区域。

The power amplifier is known to be the most power consuming component in a transmitter , hence it is desirable to operate the power amplifier as efficient as possible , near the saturation region which is at the operating region that the signals are most susceptible to nonlinear distortion .

LED的使用寿命及电源转换效率成为设计LED照明系统时的主要考虑因素。

Therefore , the life time of LEDs and power efficiency become important issues for LED lighting .

这类开关电源的效率比常规的脉冲宽度调制（PWM）高，且基本上与负载无关；

The device has a higher efficiency than the conventional switching power supply with PWM , and it is almost load-independent .

在本例中，我们将介绍显示数据中心电源使用效率（PUE）的小部件。

In this example , we will be describing a widget that shows the power usage effectiveness ( PUE ) of a data center .

采用较新的开关模式进行调光，驱动电路采用Fly-back架构，不仅使得LED调光驱动电路变得简单，而且进一步提高了电路的功率因数，以及电源转换效率。

With Fly-back architecture and switch mode dimming , the driver circuit not only makes the the LED dimming driving circuit becomes simple , and further improves the power factor of the circuit , and power conversion efficiency .

利用软开关技术的DC-DC全桥变换器能够提供较大的功率，大大减小了高频下开关管的损耗，提高了电源的效率，是微弧氧化工艺专用直流电源研制的核心部分。

Using soft switching technique , DC-DC full bridge converter can provide more power and decrease loss of switching device , and efficiency of power supply is improved . It is most important part of researching DC power supply for Micro-plasma oxidation .

电源变压器效率的实验测定

Measure the Efficiency of a Power Supply 'S Transformer in Experimentation

用辅助电路提高同步整流电源的效率

Employing an Auxiliary Circuit to Increase Efficiency of Synchronous Rectifiers

同步降压型开关电源快捷效率分析法

An Easy Method for Analyzing the Efficiency of Synchronous Buck Switching Converters