偏置电路

The biasing circuit (6) dynamically biases the sensor (10) in response to a bias setting signal.

所述偏置电路(6)响应偏置设置信号动态地偏置所述传感器(10)。

AIM: To analyze the influence of Photomultiplier Tube voltage biasing circuit on the performance of PMT, and to take corresponding measures for elevating the accuracy of PMT voltage biasing circuit accuracy to improve the performance of PMT.

目的：分析光电倍增管电压偏置电路对光电倍增管性能的影响，并采取相应措施提高光电倍增管电压偏置电路的精度，以改善光电倍增管的性能。

The processor (1) is operable to generate the bias setting signal (3) and thereb y control the biasing circuit (6) to dynamically bias the sensor such that the signal characteristic of the output signal is maintained in a target range.

所述处理器(1)可操作用于产生偏置设置信号(3)，由此控制偏置电路(6)以动态地偏置所述传感器(10)，从而所述输出信号的所述信号特征被保持在相对小的目标范围内。

On the other hand, the linear deviations of the active voltage biasing circuit with Bipolar Transistor or FET were at most 7%, and at most 3% respectively.

结果：在阳极电流为50 μA，电阻型光电倍增管偏置电路的线*偏离度已达40%，而用双极*晶体管或场效应晶体管的有源偏置电路的线*偏离度分别为≤7%，≤3%。

METHODS: On the basis of PMT passive voltage biasing circuit, Bipolar Transistor or Field Effect Transistor were used. Additionally,"adjustable constant current technology" was adopted to avoid the effect of temperature on circuit.

在电阻型光电路倍增管偏置电的基础上，增加双极型晶体管或场效应晶体管构成有源光电倍增管偏置电路；并采用可调恒流技术，以解决温度对电路的影响。

The sensitive amplifier has a circuit with simple structure, small occupied area, high read speed, low dynamic power, wide range of operation voltage and almost-zero static power and does not need a biasing circuit; the read circuit formed by the sensitive amplifier has the characteristics of anti-degradation of the properties of elements and stable performance.

该灵敏放大器电路结构简单，不需要偏置电路，占用面积小，读取速度快，动态功耗低，静态功耗几乎为0；工作电压范围大；由上述的灵敏放大器构成的读电路具有抗器件特性退化，性能稳定的特点。

We also talk about the principle, structure and circuit of oscillator, bias generator, ring detector and input pre-processor.

本文还阐述我们设计的其他电路包括晶振、偏置电路、振铃检测以及输入预处理器的原理、结构及其具体电路实现。

In order to carry constant current bias amplifier and to raise the precision of the differential amplifier of the voltage amplification stage, an overly highly precise constant current circuit is adopted as the bias circuit used as criteria of operation, and the supply voltage variation supression ratio is raised much more.

为了执行恒流偏置放大器和提高精度的差分放大器的电压放大阶段，过于高精度恒流电路采用为偏置电路用来作为标准的运作，以及电源电压的变化抑制比筹集更多。

Point out among multistage amplifier reducing total noise directioning of coefficient , design one low in noise to setover the circuit, there is certain reference value to the design of the circuit amplifier.

指出在多级放大器中降低总噪声系数的方向，设计出了一种低噪声偏置电路，对电路放大器的设计有一定的参考价值。关键词：电子噪声，电路噪声，噪声计算

Subcircuit models are designed and simulated, which includes Bias Current Source, Voltage Reference, Error Amplifier, PWM Comparator, Driver Circuit, Protection Circuits for Over-temperature, Over-current. At last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement.

并对集成电路内的各个模块包括电流偏置电路、基准电压电路、误差放大电路、三角波振荡发生电路、PWM比较电路、驱动电路、过热保护电路和过流保护等进行了具体的设计和仿真，并对整体应用电路进行了仿真，结果均达到了预先设定的指标。

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