电路

It consists of circuitry that this constant current circuit stabilizes the criteria of a highly precise returned type constant current circuit of operation in another constant current circuit,Furthermore, the voltage amplification with very high stability is realized by adopting this constant current circuit also as the bias circuit of a first rank cascode and the 2nd step cascode, and the 2nd step constant current load intensity.

它由电路，这恒流电路稳定的标准，一个高度精确的返回式恒流电路的运行在另一恒流电路，此外，电压放大具有极高的稳定性，实现了通过这项恒流电路也作为偏见电路的第一级和第二栅栅一步，和第二步骤恒定电流负荷强度。

Then, on the basis of the functional verification, the system architectures of the radio frequency analog front end and the control logic circuit for the passive UHF RFID transponder are studied and designed with low-power design techniques. The RF AFE circuit includes rectifier, matching network, backscatter, regulator, AM demodulator, voltage reference, local oscillator and power on reset circuit, and so on. The control logic circuit contains clock synchronization module, decoding module, coding module, cyclic redundancy checksum module, power management unit, control unit, shift register and memory.

然后，在功能验证的基础上，重点研究了无源超高频射频识别标签芯片射频模拟前端电路和控制逻辑电路的系统架构，并采用低功耗设计技术对其进行了设计，射频模拟前端电路设计包括了整流器、匹配网络、反向散射电路、稳压器、AM解调器、电压参考源、本地振荡器以及上电复位电路等，控制逻辑电路设计包括了时钟同步模块、解码模块、编码模块、CRC校验模块、功率管理单元、控制单元、移位寄存器和存储器等。

To solve the problems of the limescale ,the oxidation which are produced by the direct contact between a metallic conductor and water, the detecting reliability and the service life, the utility model adopts the technical proposal as below: the proposal comprises a monostable controllable trigger, a second low-pass filter, a voltage follower and a display circuit, the power circuit links with the monostable controllable trigger, the second low-pass filter, the display circuit and a timebse pulse circuit separately, the utility model is characterized in that the monostable controllable trigger, the second low-pass filter and the display circuit sequentially links, the monstable controllable trigger separately links with a water lever sensor and the timebase pulse circuit.

为了解决金属导体与水直接接触会产生水垢和氧化，影响检测可靠性和使用寿命的问题，本实用新型采用了以下技术解决方案：它包括单稳可控触发器，二阶低通滤波器，电压跟随器和显示电路，电源电路分别与单稳触发器，二阶低通滤波器，显示电路和时基脉冲电路相接，其特征在于单稳可控触发器，二阶低通滤波器，电压跟随器和显示电路依次相接，单稳可控触发器分别与水位传感器和时基脉冲电路相接。

To solve the problems of the limescale ,the oxidation which are produced by the direct contact between a metallic conductor and water, the detectingreliability and the service life, the utility model adopts the technical proposal as below: the proposal comprises a monostable controllable trigger, a second low-pass filter, a voltage follower and a display circuit, the power circuit links with the monostable controllable trigger, the second low-passfilter, the display circuit and a timebse pulse circuit separately, the utility model is characterized in that the monostable controllable trigger, the second low-pass filter and the display circuit sequentially links, the monstable controllable trigger separately links with a water lever sensor and thetimebase pulse circuit.

为了解决金属导体与水直接接触会产生水垢和氧化、影响检测可靠性和使用寿命的问题，本实用新型采用了以下技术解决方案：它包括单稳可控触发器、二阶低通滤波器、电压跟随器和显示电路，电源电路分别与单稳触发器、二阶低通滤波器、显示电路和时基脉冲电路相接，其特征在于单稳可控触发器、二阶低通滤波器、电压跟随器和显示电路依次相接，单稳可控触发器分别与水位传感器和时基脉冲电路相接。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

This course will cover: fundamental electrical circuit quantities, and circuit elements; circuits laws (Ohm law and Kirchhoff voltage and current laws); series and parallel connections of circuit elements; operational amplifiers; network theorems; nodal and mesh analysis methods; analysis of natural, step response, and response to sinusoidal input of first and second order circuits; phasor analysis; introduction to computer emulation to electrical circuit.

中文简介：本课程将覆盖以下内容：电子电路的基本原理，电路元件，基本电路定律(欧姆定律，基尔霍夫电压定律和基尔霍夫电流定律)；电子元器件的的串连和并联；运算放大器；网络理论；节点分析法和网孔分析法；一阶电路和二阶电路的普通信号，阶跃信号及单音信号的响应特性的分析；矢量分析法；并介绍计算机电路仿真的相关知识。

This paper is based on N-type MOS-HBT-NDR circuit to design a new type of logic gate circuits, The use of a monostable-bistable transition logic element logic gates to realize the principle of operation,,and NMOS devices to control the input stage circuit NDR circuit switching action, And the overall modulation circuits I-V characteristic curve.

中文摘要此篇论文是以N型MOS-HBT-NDR电路来设计新型逻辑闸电路，利用单稳态-双稳态传输逻辑闸(monostable-bistable transition logic element，MOBILE)电路的操作原理来实现，并以 NMOS元件来控制输入级电路中NDR电路的开关动作，进而调变整体电路的I-V特性曲线。

On the design of algorithms, a novel exact hierarchical delay analysis method for general circuits is proposed; based on the sensitization theorem for sequential circuits, an exact minimizing clocking method is proposed; based on Boolean process, a waveform simulation method considering interconnecting delay for logic circuit and a parallel waveform simulation method are proposed; a new method that transforms bit-level waveform polynomial to word-level polynomial model is proposed; a multiple valued synthesis algorithm based on multiple valued Boolean process and a wire-centered delay synthesis policy are proposed, in which timing planning, floorplanning, wire planning and optimal clock skew in early design are considered; a two-layers channel routing method for minimizing crosstalk under grid mode is proposed; based on the transition numbers theorems for waveform polynomial, a new method for generation of test with noise effects is proposed.

算法设计方面，提出了一种精确的通用电路层次化延时分析方法；基于时序电路的敏化定理提出时序电路最小时钟周期精确确定方法；提出基于Boolean过程论的考虑互连延迟的逻辑电路波形模拟方法，在分析了波形模拟适合并行化基础上，进一步提出一种并行波形模拟算法；提出一种将位级电路波形多项式描述转化成字级多项式描述的新方法；提出一种基于多值Boolean过程的多值电路综合算法以及一种将前期设计定时规划、前期设计的布局规划和线网结构化方法及低偏移的时钟分配等技术相结合的面向互连延时的综合策略；提出一种串绕最小化的网格模式下的双层通道布线方法；从波形多项式描述跳变数的定理出发提出了一种考虑噪声效应的测试生成新方法。

Electrical system and support the main circuit when the circuit is also linked to separate with a painting in the drawings and paintings in the main circuit general auxiliary circuit to the left or above, the main circuit with pachytene, assisted by the thin circuit portrayed.

电气系统的主电路与辅助电路时既分开又有联系地画在同一张图纸上的，主电路一般画在辅助电路的左侧或者上面，主电路用粗线，辅助电路用细线描绘。

After this text introduced and will imitate the audio frequency signal processing as numerical signal after red shoot outside, the numerical signal that will receive again solution adjust after the audio frequency power enlarger enlarge restore in order to imitate the speech signal, shot the electric circuit outside analyzed to design the audio frequency signal before collecting the electric circuit, signal placed the big electric circuit, frequency to make the electric circuit, red, red circumscribed to accept the electric circuit,, frequency the solution adjusted the electric circuit and audio frequencies to enlarge the electric circuit etc.

本文介绍了将模拟音频信号处理为数字信号后经红外发射，再将接收到的数字信号解调后经音频功率放大器放大后还原为模拟语音信号，在分析设计了音频信号采集电路、信号前置放大电路、频率调制电路、红外发射电路、红外接收电路、、频率解调电路以及音频放大电路等各组成部分。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了