及电路

The integrated circuit also has at least a second current feeding circuit having an output connected to the feeding point for the first current feeding circuit, a feeding point connectable to a feeding voltage, and a control input for controlling the programming of the NPN-transistor.

所述集成电路还包括至少一第二电流馈电电路，所述第二电流馈电电路具有一连接至所述第一电流馈电电路的所述馈电点的输出端、一可连接至一馈电电压的馈电点及一用于控制对所述NPN晶体管进行所述编程的控制输入端。

Finally, the model of the control circuit and the connection between main circuit and control circuit is discussed.

最后论述了采用面向结构图的控制电路数学模型的建立、仿真算法及主电路和控制电路之间的连接方法。

Secondly, the paper studied the FPGA solutions of Digital Multiplex System. Designed FPGA circuit of module including Multiplex, demultiplex, bit synchronization and frame synchronization, mostly performance of bit synchronization and frame synchronization circuit are optimized.

其次，论文研究了基于FPGA的数字复接系统实现方案，实现了数字复接、数字分接、位同步及帧同步等单元模块的FPGA电路设计，优化了位同步及帧同步电路的主要性能指标。

The Periscope Drawtube will be bent because of the water resistance in sailing and this bend will cause the error of star measurement. Due to its especial structure, contactless measurement is the only way to measure its bend degree. First this paper introduces the method by linear array CCD based on structure and light path; Second it expatiates linear array CCD work principle and driving scheduling with example of TCD1501C and the driving circuit by CPLD. The output signal of linear array CCD includes common disturbance so the differential amplifier is needed. In order to make the signal adapt to computer processing, a threshold circuit with Schmitt characteristic and the data process following threshold are given. At last, some key problems in application are given.

潜艇潜望镜的镜筒在航行时受到水的阻力会产生弯曲变形，这种变形会造成潜艇对星体测量的误差；由于镜筒结构的特殊性，对其弯曲程度的测量只能采用非接触方法；首先从结构和光路方面介绍采用线阵CCD作为检测元件实现对镜筒弯曲程度的测量；其次以东芝公司的线阵CCD（TCD1501C）为例阐述了其工作原理及驱动时序的控制要点，并介绍了基于可编程逻辑器件的线阵CCD的驱动电路；线阵CCD输出的信号中含有共模干扰，必须采用差分放大器将其抑制；为将信号转化为适合计算机处理的数字信号，文中给出了有一定实用价值具有施密特特性的二值化处理电路及二值化后的数据处理过程；最后阐述了在实际使用中的一些关键问题。

Secondly, the driver circuit, the control circuit, magnetic component of the power supply are designed and optimized.

其次，对开关电源的驱动电路、缓冲电路、控制电路及主要磁元件进行优化、设计。

With the fact that there are some topology vector s that vary with different formula in each circuit topology, another identification way can be carried out by selecting and measuring the best.

另一方面，基于电路的拓扑向量在不同电路拓扑中变化规律各不相同的基本事实，通过对最简拓扑向量的选取、验算及监测，可依据较少的检测量而实现电力电子电路的拓扑辨识。

With the fact that there are some topology vectors that vary with different formula in each circuit topology, another identification way can be carried out by selecting and measuring the best topology vectors.

另一方面，基于电路的拓扑向量在不同电路拓扑中变化规律各不相同的基本事实，通过对最简拓扑向量的选取、验算及监测，可依据较少的检测量而实现电力电子电路的拓扑辨识。

Then, the transfer characteristic of the input unit cell is simulated and the testing results of an IRFPA interconnected with this ROIC are given at last.

首先对该电路结构及工作原理进行分析，并对输入级等电路的传输特性进行仿真验证，最后给出探测器阵列与读出电路芯片互连后的测试结果。

Base on the principle, the main circuit and control circuit of 2-phase hybrid stepping motor systems are designed. The system can realize many functions such as fix-frequency pulse width modulation, current sampling, power magnifying, ring distribution, producing control signal, and so on.

完成了对二相混合式步进电动机微步驱动系统主电路及控制电路的具体设计，实现了恒频斩波、信号检测、环形分配、微步信号的产生等功能，并搭制了实验电路进行实验验证。

The circuit of range finder is expounded in systemic hardware. The operation control and the selection of stepper motors, the flow chart of main programme , the circuit of meterage of temperature and display etc are primarily designed.

系统的硬件部分，对测距电路做了简单的设计与分析；对步进电机的选定及其运行控制、测温电路及其程序、显示电路做了初步的设计；介绍了控制芯片AT89C51及对主程序流程图做了简单的设计等。

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。