和电路

In order to eliminate the influence caused by the nonminimum phase characteristic of a common Boost DC／DC converter, Viswanathan K has proposed a novel tristate Boost DC／DC converter. For enhancing performance, the statespace averaging model of this converter was first presented in this paper. Due to the nonlinear nature in this model, an inputoutput feedback linearization technique was adopted, and a complete controllable linear system was obtained. Then a statefeedback control strategy was designed based on this linear system. Simulation results show that the proposed control strategy can assure constant output voltage in a wide range, so as to realize the stability of the system during large fluctuation of power supply and load disturbance. Good dynamic performance can also be achieved.

针对 Viswanathan K为消除普通BOOST DC／DC变换器的非最小相位特性而提出的三态Boost DC／DC变换器，为进一步提高这种电路拓扑的性能，在建立了变换器状态空间平均模型的基础上，针对其多变量、非线性特点，采用输入输出线性化将其转化为一个完全可控的线性系统，在此基础上应用现有成熟的线性控制策略进行了控制系统的设计，并且采用MATLAB进行仿真验证，结果表明：这种非线性控制策略可以确保输出电压在大范围内恒定可调，且即使存在大范围扰动(输入电压和负载变化均较大)的情况下，系统也可以确保稳定性和良好的动态性能。

The basic theory of the algorithm for test pattern generation using satisfiability is explored, including represent method of SAT-ATPG, search algorithm and analyses of achievement techniques. We describe how to represent circuits and fault detection problem as Conjunctive Normal Form . We improve an effient search algorithm suited to ATPG based on basic satisfiability algorithm.

本文研究了组合逻辑电路测试向量自动生成的可满足性方法，主要进行了可满足性的测试生成原理、实现算法、性能提高和测试向量的最大压缩等方面的研究，改进了一种有效的测试生成搜索算法SAT-ATPG，提出了隐含多路敏化的故障效应单路定向传播方法SOPCA、控制输入跟踪算法CIT和测试衍生算法TD，取得了较显著的效果。

This article expounded the component, principle, control circuit and showing board character.

阐述了试验台的组成、工作原理以及试验台控制电路和显示面板的特征和设计制作过程。

Experimental results as well as simulation results verify the feasibility of the main power circuit and control scheme.

仿真和试验结果验证了主电路和控制系统方案的可行性。

In this paper, the condition monitoring and control system of tower cranes are analyzed and studied, and the electric circuits and software designs are performed.

本文完成了塔式起重机的控制和监测系统的分析与研究、电气控制电路设计和软件设计。

The convolution integral is quite important in signal processing, control theory, and dynamic electric circuit analysis.

各类教材对卷积积分的介绍和讨论卷积积分对于信号处理、控制理论和动态电路分析均具有重要意义。

Corona and spark discharge may appear on high voltage power network,substation and distribution etc.

在高压电路传输、变电站和配电系统的多处都有可能发生电晕和电弧放电现象。

Basing on the speed control and reversing control in hardware control circuit, software control program realized the rectilinear motion and simple curvilinear motion of an omni-directional mobile robot.

软件控制程序在硬件控制电路实现的调速控制和换向控制的基础上，通过编程实现全向轮驱动小车的直线运动和简单的曲线运动。

The design of data acquisition and data processing system.

现以完成了整个系统的硬件电路和处理软件的设计和调试工作。

Based on the models presented above, this paper provides the new design of the E1 to VC-4 mapping Application Specific Integrated Circuit that named MXLO21E1-3. The innovations of the chip are listed below.(1) One chip can fulfill 21 E1 tributaries to demultiplex and multiplex from and to two VC-4 buses that transfer in different directions (2) Put forward the new design scheme which combined the ADM system with TM system (3) Adopted the advanced pointer processor which remarkably restrain the output wander (4) Timing recovery is realized in the chip, which reduce the peripheral circuits The characters listed above made the MXLO21E1-3 advanced in the scale, system performance, and application allover the world.

在所建立的SDH系统集成模块概念的基础上，本文提出了一个新的SDH映射芯片MXLO21E1-3的方案设计，该方案创新性的特点在于：（1）单片实现21个E1双总线映射，其功能相当于目前国际应用最多的同类芯片的5倍（2）实现分插复用器ADM和终端复用器TM合二为一的系统设计（3）采用先进的指针处理，显著减小漂移（4）片内E1定时提取，进一步减少外围电路上述特点使该芯片在功能规模上，系统性能和应用上都具有国际领先水平。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。