计算电路

This research adopts the impedance marching method, by varying duty cycle in a DC-DC converter to make the apparent load impedance matching with current system impedance, and reach the mpp operation.

控制电路的部分由单晶片PIC18F452为中心，重点为如何有效的取得太阳电池的开路电压及短路电流，以便正确计算出太阳电池的内部阻抗。

The mechanical design of transceiver module shell is given then. In addition, transmission lines theory is carefully discussed.

本文对光模块中高速电路传输线理论进行了详细的分析，推导了传输线的电报方程和特性阻抗的计算公式。

The ripple of PFC s output voltage is analyzed.

分析了电力电子装置中功率因数校正电路输出纹波产生的原因，并给出了理论计算。

This paper introduces magnetic measuring technique to measure the accurate length of wire strand online rapildy,analyzes remanent magnetism of wire strand,magnetic cavity and the relationship between wire strand movement speed and measuring accuracy and in detail introduces design, digital filtration ,undetected monitor and error calculation of magnetic module,remanent sensor and measuring circuit.

深入分析了钢丝绳的剩磁特性，以及励磁磁隙、钢丝绳运动速度与检测精度之间的关系；对励磁模块、剩磁传感器和检测电路的设计以及数字滤波、漏检监测、误差计算等进行了详细说明。

There are few equivalent circuit modeling methods for UWB antennas. This thesis compares the characteristic of some existing modeling methods and presents a general and precise modeling method for UWB antennas. Firstly, establish the narrowband model of the antenna, and compute the difference between input admittances of the antenna and its narrowband model. Secondly, implement rational approximation of the difference to build the macromodel, and convert it into SPICE equivalent circuits. Lastly, combine the narrowband model and the macromodel to form the ultimate equivalent circuit model of the antenna.

本论文针对目前UWB天线等效电路建模方法比较少的现状，结合现有的天线建模方法的一些特点，研究了一种系统通用、模型精度高的新建模方法：首先建立超宽带天线的窄带模型，计算天线及其窄带模型导纳的差值；接着对差值进行有理多项式拟合，得到相应的宏模型，并转化为SPICE等效电路；最后合并窄带模型与宏模型电路，得到天线等效电路模型。

In the inductance-coupling mesoscopic circuit, by taking account of the charge discreteness, a method for calculating quantum effects is proposed in the new Fock space that is formed by the eigenstate of charge operator.

针对电感耦合介观电路模型，计及电荷的离散性，提出一种在电荷算符本征态构成的新Fock空间中计算系统量子效应的方法。

Based on the results of the theory analysis and computer simulation of ratrace, Waveguide-to-Microstrip Probe Transitions, DGS lowpass filter, the structure was designed and manufacture was made.

在对所用到的功率混合电路，波导－微带探针过渡，以及DGS低通滤波器进行理论分析、计算、和计算机仿真的基础上，制作混频器，并对设计结果进行了测试验证。

The steps for algorithm are also given in detail. An effective and simple method to analyze and judge the track circuit frequency-shift signal is developed.

文中同时给出了算法详细的计算步骤，提供了一种有效、简单的分析和判断轨道电路移频信号的方法。

Application of Sticker model and simulation of Boole circuit are introduced, and problems in DNA computing model are analyzed.

主要介绍了Sticker模型的应用及布尔电路的仿真应用，并分析了DNA计算模型中存在的问题。

State equations, the accelerating algorithm and simulated ripple results of a symmetrical Cockcroft Walton circuit are described.

以对称型 Cockcroft-Walton电路为对象，介绍了状态方程的建立和加速计算方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。