range converter

According to the characteristic of the wide range of temperature and the smallness of temperature rise rate ( TRR) value, a new measuring method for the TRR with 10 bit A/ D converter is given, that is measuring difference method.

针对汽轮机启停过程中，温度变化范围大，温升率小的特点，提出了一种利用10位A／D转换器测量温升率的方法&测差法。

The main contents are as follows: 1. An improved adjustable current source is used to design a laser driver circuit with hot-plug function; a large photosensitive area photodiode and a wide dynamic range logarithmic converter are used to design an optical power meter.

主要研究内容如下：1.对可调电流源进行改进，设计出了具有热插拔功能的激光器驱动电路；利用大光敏面的光电二极管和宽动态范围的对数运算放大器，设计出了光功率计。

When PFC stage uses VVB control, in order to reduce the input voltage range of the next DC-DC stage, this dissertation proposes a hybrid Boost PFC converter.

当PFC级采用变输出电压控制后，为了减小后级变换器的输入电压范围，本文提出一种复合式PFC变换器。

However, Due to the limitations of the single-stage converter, when the bus voltage is high and wide input voltage range, the single-stage converter is not suitable for multi-output low power switching power supply.

但是由于单级变换器自身的局限性，当电源母线电压宽输入范围时，单级变换器并不适合用作多路输出小功率开关电源的主功率拓扑。

In the blue print of the digital, make sure of the logarithmic Amplifier, A/ D/ A converter and FPGA realize the IF amplifier, big dynamic range AGC, detect and video process same as that in the blue print of the analog.

在数字方案中，笔者结合软件无线电技术，通过使用对数放大检波器、A/D/A转换器以及FPGA软件实现了同样的中频放大、大动态范围的AGC控制、以及检波、视频信号处理等功能。

So transmission efficiency of hydraulic torque converter, in any situations, is in perfect range.

可使变矩器在所有工况下的传动效率都工作在理想的范围内.

Experimental study on the feasibility of scheme through the experimental research, through XBM make EAM at unsaturated state, realize 10Gbit/ s NRZ data all-optical wavelength conversion. The wavelength converter is experimentally demonstrated at 10Gbit/ s rate over up-conversion range 10.2 nm. 5.

通过实验研究验证了方案的可行性，通过交叉偏压调制使EAM处于非饱和状态下工作，实现了10Gbit/s速率的NRZ数据信号全光波长变换，并同时实现了10.2nm宽的全光波长变换范围。

PWM A/ D Converter with Dynamic Input Range Based on MCU

用单片机设计动态输入范围的PWMA/D转换器

Because of utilizing high-speed optoelectronic converter and flash sample technique, the system can process Moir é signal with wide frequency range.

由于采用了高速信号处理和闪烁采样技术，采用该方案的系统能处理宽动态范围的莫尔条纹信号。

To achieve this control strategy, a very important point is that, under the conditions of the voltage dip, can conrol the grid-side converter very good, to make the DC side voltage is stable within a certain range.

要实现此控制策略，很重要的一点就是在电网电压跌落条件下能够很好的对网侧变流器进行控制，使得直流侧电压稳定在一定范围内。