及电路

After several years of efforts in the digital circuits and digital decoders in the contribution has been recognized for the industry.

经过几年的努力，在数字电路及数字解码方面的建树已为行业公认。

There are three parts included. The first part is the prepositive-amplifier, it gets broadband high gain and flat frequency response. The second part is the U band quadrupler, which composed of two doublers using a PHEMT chip HMMC-5040, a Schottky diode of DMK-2790, a HMMC-5040 amplifier, and a fin-line transitional stage. Maximum output power higher than 60mW is obtained in V band. The third part is a 2nd harmonic gunn oscillator injection locked by the Fundamental Wave,which get about 2GHz locked bandwidth in W band.

电路主要由三部分组成，第一部分为采用HMMC-5618设计的前置放大器，实现了宽带高增益和平坦的频率响应；第二部分为设计的主体，由HMMC-5040设计的二倍频器、DMK-2790设计的二倍频器、HMMC-5040设计的放大器及鳍线过渡段组成的U波段四倍频器，在U波段实现了最高60mW以上的输出功率；第三部分为基波注入锁定谐波Gunn振荡器，在W波段实现了近2GHz锁定带宽。

Components that exhibit significant loss over a bandwidth of over 100 MHz, ferrites can be characterized as high frequency

电感及电容所组成的电磁波干扰滤波器，有可能会使电路感应而形成共振，造成额外有电磁波干扰问题的频带。

A novel scheme of designing the LD driver based on field programmable gate array is proposed. Employing FPGA as the controlling center, all the functional modules of the LD driver, including AD/DA converting, temperature PID controlling, invariably current driving, LD protection, input and output circuit, are arranged to operate together harmoniously under FPGA.

提出了一种新型的基于现场可编程门阵列技术的半导体激光器驱动电源设计方案，该方案以 FPGA 为控制核心， LD 驱动电源的 AD/DA 转换、温度 PID 控制、恒定电流驱动、LD 保护及人机交互等功能模块电路均在 FPGA 的控制下协调工作。

The design of hardware and the flowcharts of software are presented in this paper.

文中给出了该系统的硬件电路设计、软件流程及实验结果。

One is between the IO form board of the computer measurement and control system and the sensor. The other is between the stepper motor and the outside travel switch.

并设计了计算机测控系统的专用I/O模板与传感器的连接电路与步进电机及外部行程开关的连接线路。

Since the frequency conversion technology was adopted,the serrice power rate of shunneng garbage power plant might be controlled within 20% in the great part of time.

文章介绍了顺能垃圾发电厂变频器的选型，变频控制电路及变频调速技术的应用效果。

Using the gas discharge lamp as the light source of atmospheric optical communication,the function theory and characteristic of this light source are analyzed.

以气体放电灯作为大气光通信的光源，分析了光源的工作原理及特性，对调制方式进行了选择，设计实验电路并进行了一系列调制实验，最后提出一种基于电子镇流器的大气光通信BFSK调制方法。

Elaborated design work flow, realized hardware interface circuit to reach be based on sheet piece the communication software of machine ATmega128 and blue tooth module, in applying in portable heart report to guard appearance, achieved favorable applied result.

阐述了设计工作流程，实现了硬件接口电路及基于单片机ATmega128和蓝牙模块的通讯软件，应用在便携式心电监护仪中，达到了良好的应用效果。

The part key circuit and software program block are given.

给出了部分关键电路连线图及软件程序模块。

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。