Based on detail analysis of process states and switch processes of the embedded system , the design principle of process scheduling is given , and the progress schedule of embedded system developing platform kernel layer is designed and realized 详细分析了嵌入式系统开发平台的进程状态及其转换过程,给出了进程调度思想,设计并实现了嵌入式系统开发平台核心层进程调度。
This article will be helpful in theoretical analysis , in which the action of single mode fiber in the self - q - switching process has been discussed , generally the influence of length of single mode fiber , which also is difficulty to the self - q - switching system 最后简要讨论了该系统中单模光纤在调q过程中起到的作用,单模光纤长度对调q效果起到的影响,指出系统对于其长度的要求是受激布里渊散射调q的一个难点,并对今后研究的方向提出了一些建议。
In this part , the high - frequency series inverter with resonant pole capacitor is introduced mainly . the current - exchanging processes of the inverter in different working modes are analyzed , how to reduce the switching loss is discussed , and the calculating methods of snubber capacitor c , factor angle switching frequency and pulse width pw are given in optimum switching process . and results of simulation and experiment verify the validity of theoretic analysis 接着重点研究了含有谐振极无损缓冲电容的逆变器,对其换流过程中的不同工作状态进行分析,讨论了如何减小逆变器的开关损耗,给出了最佳工作状态下缓冲电容c 、感性角、开关频率、触发脉冲的脉宽pw的详细计算方法,并通过大量的仿真和实验波形证明了理论分析的正确性。
With the development of electronic technology in the field of high - frequency and high - power , power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch . with the increasing of the operating frequency ( > 200khz ) , the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters . especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ) , the energy loss caused by the switch process will badly affect its efficiency 随着电力电子技术进一步向高频的大功率用电领域发展,功率mosfet在各种电力半导体器件中的重要地位日益显著,使用功率mosfet作为开关器件的功率转换电路也日益增多,但随着器件开关频率的提高(大于200khz ) ,由器件极间电容引起的能量损耗将会影响到功率转换电路的能量传输效率,特别是在以mosfet作为开关器件的高频感应加热电源中(工作频率可达兆赫) , mosfet在开关过程中的能量损耗严重影响到电源的效率,因此如何减小开关器件的损耗提高高频功率转换线路的效率成为电力电子技术领域的重要研究课题之一。
In this dissertation , the principle of self - q - switching fiber laser , common kinds of er - doped fiber laser and q - switching technology have been introduced and analyzed . the emphasis of the dissertation was self - q - switching er - doped fiber laser based on stimulated - brillioun - scattering ( sbs ) , in which the theoretical analyze and the emulating experiment were studied in detail . the physical model of the self - q - switching process has been presented in this dissertation 本文阐述了自调q光纤激光器的原理,分析了常见的掺铒光纤激光器及调q技术的基本原理,重点研究了利用受激布里渊散射过程进行自调q的掺铒光纤激光器,进行了理论分析和仿真实验研究,给出了这一过程的物理模型。
switch: n. 1.(树上折下的)细树枝;软鞭子;鞭打。 2.假发 ...process: vi. 〔口语〕排队走,列队行进 〔procession ...process switching: 进程切换; 进程转换domain-switching process: 磁畴开关过程process context switching: 进程关联转换switching: 变换; 采用的; 当你不喜欢的人这么做,他就是个食言的骗子。; 换库; 换马; 交换防守; 交换式; 开关; 快速分组交换; 灵魂的互换; 配电;交流; 切换;交换; 通道转换; 转换;掉期买卖switching in: 接入switching on: 接入switching(s): 交换in process: 生产中的; 在进行中in process of: 在…过程中in the process: 在进行;经过;在…过程中; 在这个过程中in the process of: 在过程中process: n. 1.进行,经过;过程,历程;作用。 2. 处置,方法,步骤;加工处理,工艺程序,工序;制作法。 3.【摄影】照相制版法;照相版图片;三原色印刷。 4.【法律】诉讼程序;法律手续;被告传票,传票。 5.【解剖学】(动植物机体的)突起,隆起,突。 the process of growth 生长过程。 a mental [psychological] process 心理作用。 labour-consuming process 重体力劳动。 film process 影片加工。 offset process 胶印法。 legal process 法律手续。 vermiform process 【解剖学】阑尾,蚓突。 in process 进行着 (changes in process 正在发生的变化)。 in process of time 随着时间的推移;逐渐地。 in (the) process of 在…的过程中 (in process of construction 正在建筑中)。 serve a process on 对…发出传票。 adj. 1.经过特殊加工的;(用化学方法等)处理过的。 2.照相制版的;三色版的。 3.(电影镜头等)有幻觉效应的。 vt. 1.加工;处理,办理;初步分类;储藏(腌肉等);(用化学方法)处置(废物等)。 2.用照相版影印。 3.对…提起诉讼;用传票传审。 a processing tax 〔美国〕 (农产品)加工税。 a processing plant 炼油厂,石油加工厂。 vi. 〔口语〕排队走,列队行进 〔procession 之略〕。 process(to): 进行s process: s过程s-process: s-过程to process: 处理analog switching: 模拟交换antenna switching: 天线转换asynchronous switching: 异步交换; 异步开关audio switching: 音频切换器automatic switching: 自动交换; 自动开关; 自动转换autonomous switching: 自治交换band switching: 【无线电】波段转换。