This thesis gives analysis on tdm circuit emulation structure in psn , describes the basic theory of tdmoip and the technology of encapsulation , based on which a applicable circuit emulation equipment application scheme 本论文对分组交换网中tdm电路仿真的体系结构进行了分析,描述了tdmoip的基本理论及适配、封装技术,在此基础上提出了一套可行的电路仿真设备实现方案。 tdmoip的技术依据是ietf的pwe3草案。
Moreover , other low power designs are realized . all these efforts have effectively reduced the power of the system . ( 3 ) professional analog circuit emluator is used for analog circuit design , which makes lower cost and shorter time than before ( 3 )利用专业模拟电路仿真软件pspice对模拟电路进行电路仿真测试，为电路的参数选择、性能分析等方面提供了理论测试依据，缩短了开发周期，降低了开发成本。
However , only ideal inductors can be called when circuits are simulated , hysteresis phenomena of cores are often regardless of , which results in the evident difference of the simulations and the real , and the simulating results couldn ’ t guide real works at present 由于进行电路仿真时只能调用软件自带的理想感性元件,忽略了磁芯感性元件的磁滞特性,因此,造成仿真结果与实际相差很远而不能指导实际工作。
Especially , the characteristic of even - harmonic mixer is analyzed and design technique to control the phase characteristic of the mixer is presented . the mixer circuits are designed ; the results of simulation and experiment test are compared and analyzed 讨论了利用eda工具的电路设计技术，利用hpads 、 ansoft软件完成了电路设计、仿真和制作了上述器件，并把电路仿真和场仿真以及测试结果进行了比较和分析。
The generations of the pwm plus phase - shift familiy is explained . taken as an example of the family , the operation principles and analyses of one particular converter are illustrated , respectively . simulation results and experimental results are also presented 文中介绍了pwm加相移控制双向dc dc变换器族的产生原理，并以实例详细说明变换器的工作原理，进行了建模分析，最后给出了电路仿真结果和实验结果。
After the review of the development of computer simulation , especially the characteristics and status quo of the electrical and electronic simulation , a summary of its application to welding power source and some simulation soft packages generally used is introduced 在回顾了计算机仿真技术的发展历程，尤其是电力电子仿真技术的现状和特点之后，结合其在焊接电源领域的应用情况介绍了常用的几种电路仿真软件及其应用特点。
In this thesis , research on w - band hybrid integrated technique is presented , and the first domestic design for a w - band microstrip integrated double balanced mixer and a novel w band balanced mixer are proposed . the simulation , assembling and testing of the mixer are also given 本文对w频段混频技术进行了研究,在国内首先提出w频段微带集成双平衡混频器和新颖w频段微带集成单平衡混频器的设计方案,并进行了电路仿真设计、制作与测试。
The thesis will focus on tdm access method . after analyzing the standards and reviewing the theory of circuit simulation in epon , a scheme will be given to tdm access . and the details of olt and onu to transmit the tdm services will be described Gpon系统中实现tdm接入的研究还处于初期阶段,本文在借鉴epon系统电路仿真技术的基础上,提出了gpon系统中承载tdm业务的实现方法,对olt和onu如何实现gtc成帧、 gtc解帧、帧同步等做了详细的研究。
The characteristics of the full bridge series resonant converter with the separate transformer are analyzed . the resonant frequency and other circuit characteristics are discussed . the full bridge series resonant converter is analyzed by circuit simulation 对带可分离变压器的全桥串联谐振变换器的电路特性进行了分析,分析了变换器的谐振频率,利用正弦等效的方法分析了变换器的电路特性,对双极性控制和移相控制全桥串联谐振变换器进行了电路仿真。
In this paper , the design of a specific chip for circuit emulation based on ip is put forward and realized and the main functional modules and the key algorithms including an all - digital adaptive clock recovery method and a dynamic depth buffer algorithm are described in detail 文章根据相关标准提出并实现了一种电路仿真专用芯片的设计方案，并对其中主要功能模块和关键算法作出了详细说明，包括一种全数字的自适应时钟恢复方法、动态深度缓冲算法等。
