电流放大器

The semiconductor optical amplifier- cross gained modulation wavelength converter in the core node is used to transfer the payload from the old label to the new label to achieve the label erasion and insertion.

基于此光标记系统，研究Mach-Zehnder调制器的消光比、半导体光放大器的偏置电流、接收模块的输入功率、泵浦光功率、探测光功率对误码率的影响，以及转换波长与转换效率的关系。

Then the chip based on the process module, especially the current feed-back loop, loop compensation, error amplifier and band gap circuits was analyzed and designed.

重点分析了电流反馈环路，斜波补偿电路，误差放大器、基准产生电路等几个模块。

The test result showed that the preamplifier could work at the temperature of 100K, its feedback resistance was about 10^6Ω, the equivalent input noise current was 0.03pA/Hz(superscript 1/2) and the power consumption of one cell was less than 1mW. This preamplifier could work well when connected with JR detectors, and the system had good linearity.

经测试，这种前置放大器在深低温下能正常工作，反馈电阻大小为兆欧级，等效输入噪声电流仅0.03pA/Hz(上标 1/2)，单元功耗小于1mW，与红外探测器连接后工作正常，线性度较好。

Based on Op-Amp, the realization of a RC active current mode of high pass filter circuit is given.

摘 要：以运算放大器Op-Amp为基础，提出了构成有源RC电流模式负反馈高通滤波电路全集成MOSFET-C的平衡结构。

This article points out the difference in the definition of input offset current about analog Integrated Operational Amplifier Circuit in common teaching material for analog electronics.

指出在高等院校工科电气电子类模拟电子技术课程常用教材和参考书中关于模拟集成运算放大器输入失调电流IIO的定义不一致的问题。

The problem being brought about for using the definition of input offset current "IIO=IBN-IBP" is that the direction of current in equivalent circuit on practice analog IOAC is not decided.

指出由输入失调电流的常见定义IIO=︱IBN－IBP︱来建立实际模拟集成运算放大器的等效电路时因IIO的方向无法确定而带来的困难。

This system is designed based on SPCE 061A microcontroller to measure the close loop parameters of the amplifier. The system can measure the input offset voltage、the input offset current、the open loop AC differential mode voltage gain、the AC common mode rejection ratio and unit gain bandwidth,using the measure method of assistant amplifier. What is more, data printing is completed in this system.

摘要本系统是基于SPCE 061A 单片机的运算放大器闭环参数测试系统，该系统采用辅助运放测试方法，可对运放的输入失调电压、输入失调电流、交流差模开环电压增益和交流共模抑制比以及单位增益带宽进行测量，并具有将测试数据打印输出的功能。

Because the input and output resistance of the CMOS complementary amplifier decreases owing to the negative feedback resistor,the voltage swings are reduced,and the response time of the current comparator is short and the speed is fast.

由于CMOS互补放大器的负反馈电阻降低了它的输入、输出阻抗，从而使电压的变化幅度减小，所以该电流比较器具有较短的瞬态响应时间和较快的速度。

The monitoring unit may the real-time surveillance amplifier's electric current, the voltage and the power and demonstrated by the kneading board electric instrument.

监控单元可实时监视放大器的电流、电压和功率并由面板电表显示。

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。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。