mode n. 1.法,样,方法,方式。 2.模,型;样式,体裁,款式;习惯。 3.风尚;〔the mode〕流行,时髦。 4.【语法】= mood. 5.【音乐】(古希腊的)旋法调,(近代的)调式。 6.【逻辑学】程式,样式,论式;【统计】众数。 all the mode 非常流行。 become the mode 流行起来。 in mode 正流行,新式。 out of mode 不流行,老式。
The more functions there are , the more power losses they disspate . thus they require the battery power supply system ’ s size smaller , weight lighter and efficiency higher . to meet these requirements , high efficiency dc - dc switching mode power supply is adopted 目前的手机等各种高效便携式电子产品日趋小型化,并且随着功能的不断增多其功耗也随之增大,因此要求其电池供电系统体积更小、重量更轻、效率更高,从而须采用高效率的dc - dc电源。
Shanghai glory technology trade co . , ltd . has been a leader in design and manufacture of sorts of electroplating equipments including silicon rectifier , thyristor controlled rectifier , switch mode and etc . shanghai glory technology trade also provide total trade service to customer all over the world 上海市固若贸易有限公司在电镀电源的研发生产处领先地位。为世界上多家表面处理厂家生产线配套。同时,提供多方位的电子产品的贸易研发服务。
With the development of power electronics , switching mode power supply ( smps ) must have higher frequency , higher power density , higher efficiency , higher power factor ( pf ) and higher reliability . to be practicability , the circuit must be simple and small 随着电力电子技术的不断发展,要求开关电源有更高的频率、更高的功率密度、更高的效率、更高的功率因数和更高的可靠性,同时还要求其电路相对简洁,并有较小的体积,这样才更具实用性。
In the following section , the thesis demonstrated the robustness of the proposed method in the computation of radiated electromagnetic fields of switched mode power supplies by means of a numerical study on the electromagnetic fields of an electric dipole antenna 应用本文开发基于pml吸收边界条件三维时域有限差分计算软件,计算了电偶极子天线的三维辐射电磁场,并将计算结果与解析解进行了对比分析,验证了时域有限差分法计算高频开关电源辐射电磁干扰的有效性。
Abstract : this paper describes the operation characteristics of metal halide high indensity discharge lamp . it is to developped the switching mode power supply of light source in multimedia projector on color lcd application on high pwm convertortechnique , the circiut diagram and experimental results are given 文摘:简述金属卤化物高强度气体放电灯的特性,应用高频pwm开关变换技术,研究成功彩色液晶多媒体投影机光源用开关电源供电系统,给出原理电路和试验结果。
The wavelengths are specified by two bragg gratings in pm fibers . the proposed laser can be designed to operate in stable four - wavelength or wavelength switching modes only by simple adjustment of two polarization controllers . two moire bragg gratings in pm fibers are respectively fabricated successfully through stretching and double , triplicate 4 .在2 , 3工作的基础上,在连续光输出的激光器谐振腔内加入调制器进行主动锁模,分别得到了基于侧向应力作用下的光纤光栅、单个保偏光纤光栅、两个保偏光纤光栅进行选频的多波长的锁模光纤激光器。
To solve this problem , this paper presents a novel dual modular redundancy structure using complementary logic - alternating - complementary logic cl - acl switching mode . during error - free operation , the cl - acl structure operates by complementary logic mode . after an error is detected , it retries by alternating logic mode 在低电源电压2 . 2v或更低或在0 . 1 m m vlsi工艺条件下,具有大于10 mev能级的宇宙中子流以高达20中子平方厘米小时到达地球表面时所引起的电路的随机差错率将是难以接受的。
In the design of real - time control system , the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit , and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ) , which would avoid straightthrough short of a certain bridge . phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter , but also be used for speed detecting based on signals " period measurement , which makes the speed sensor unnecessary . the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system 在实时控制系统的设计中,本文以三相全桥mosfet逆变电路作为实时控制主电路,采用120导通方式结合半桥pwm调制的控制方案,从而有效地避免了桥臂的直通短路;本文用单电流传感器实现对相电流的检测,来自位置传感器的三相位置信号不仅为逆变电路提供换相信息,而且也用于基于信号周期测量的转速检测,这样就省去了速度传感器;系统采用的是速度、电流双闭环控制策略,力求构建高性能的稀土永磁无刷直流电动机全数字实时控制系统。
Secondly , the model of the high frequency switching mode power supply transformer with the lest loss and highest efficiency was set up . with the genetic algorithm and microsoft visual foxpro 6 . 0 , the optimization designing software of high frequency switching mode power supply transformer ? hfsmpst expert v1 . 0 was developed . then the sample of the high frequency switching mode power supply transformer was produced 接着本文建立了损耗最小、效率最高的高频开关电源变压器的设计模型,利用遗传算法和microsoftvisualfoxpro6 . 0开发了高频开关电源变压器优化设计软件hfsmpstexpertv1 . 0 ,研制了高频开关电源变压器样品并介绍了其工艺方法和流程,最后本文通过实验测试验证了设计的正确性,实现了预定的研究目标。