驱动电路

In this paper, a BUCK circuit added lead before the full bridge which used in BLDCM drive system is proposed, and this drive system is studied.

在永磁无刷直流电机驱动系统中，本文提出在传统的三相桥前加上BUCK电路，用于永磁无刷直流电机的驱动，并就系统进行了理论分析与实验研究。

Mechanical system includes mechanical structure design of exploring head, measuring and controlling box. Circuit system includes the least system of S3C44BOX automatic gathering system、 man- machine vision system、 circuital schematic diagram and PCB design of communications system.and completion of correlative function drive software.

机械系统包括测头和测控箱的机械结构设计，电路系统设计包括S3C44BOX的最小系统、自动采集系统、人机界面显示系统和通信系统的电路原理图和PCB设计，以及相关功能驱动软件的编制。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

This paper presents a conditioning circuit, which uses the inertia of capacitive micromachined gyroscope oscillation to discontinuously drive the microgyroscope.

本文提出一种调理电路方案，该方案利用电容式微陀螺振动的惯性，对其进行不连续驱动，在敏感信号达到最大值时进行积分采样，并且在采样时关闭驱动电压的方法，有效地减少了干扰。

First of all, we talk about embedded systems and digital radios basic concepts and features. Secondly, the system described in detail the overall function and functions of various modules. On the third, described in detail the hardware system design, and mainly focused on the core hardware system board and the expansion of all parts of circuit board design. Fourth, described in detail the Custom embedded WinCE operating systems, their main task is to reduce, modify Bootloader.

首先，介绍嵌入式系统的基本概念和特点以及本文所论述的结构；其次，详细介绍了系统的硬件的总体设计以及软件的总体设计；第三，详细介绍了系统的各个硬件模块的设计，主要是对硬件系统的核心板和扩展板的各部分电路的设计进行了介绍；第四，详细介绍了嵌入式WinCE操作系统的定制方法，主要工作是对其进行裁减，编写Bootloader；并通过中断和流接口开发基于嵌入式系统的驱动程序，通过修改编写驱动程序让嵌入式系统能够满足当前的项目的需要，实现最小化同时又是最完全的系统；第五，详细介绍了服务器端，嵌入式控制端，采集端3大部分的软件以及自己定制的通讯协议。

We also designed the timing circuit board to driver the MOSET and the network control system based on the probably fill mode in the future and the RF system of the storage ring in HLS. The high reverse overshoot exists in the current pulse with the pulse width of 60 ns. Further study is necessary to eliminate the reverse overshoot and to search the proper techniques on modulability of light pulse interval in HLS.

根据未来光源储存环可能的填充模式，以及光源储存环高频系统的特性，设计了MOSET开关驱动控制系统的时钟试验电路，和以太网控制试验电路，即将投入加工。60ns脉宽的脉冲电流，存在较大的反向过冲，需要进一步研究合适的反峰削除技术，以及可用于光源脉冲可调性的合适技术。

Explore the algorithms of both the circuit gate-level parallel logic simulation based on event-driven and the corresponding circuit partition.

对基于事件驱动的电路门级并行逻辑模拟算法和相应的电路划分算法进行了研究。

This paper advances the circuits of step motor plane rectangular coordinates automatic position system controlled by single chip computer.

设计出以步进电动机拖动为核心的平面直角自动定位系统电路，其中包括单片机输出接口线路、光电耦合线路、驱动线路、直流电压源电路等。

The contacting press between the electrode and the pressboard can affect the measurement of moisture in transformer insulated pressboard .

针对绝缘纸板微水分测量中传感器电极与纸板的接触压力问题，利用绝缘纸板微水分介电测量系统，将绝缘纸板置于平板电容传感器中并施加压力，传感器在正弦驱动信号源的作用下，输出的感应信号经调理电路缓冲、滤波，并与驱动信号比较。

Utilizing Chua's circuit, a drive-response chaotic synchronization system is constructed, by means of imitation, it can be concluded that this synchronization system possesses to a certainly stability、resisting-disturbance, and so on;Based on its system and by means of imitation, the characteristic of the chaotic synchronization self-maintenance is put forward, and imitation results are also presented.

介绍了Chua电路及其特性，给出了实现非线性电阻的一种电路；利用Chua电路构造出一种驱动-响应混沌同步系统，通过仿真得出此同步系统具有一定的鲁棒性、抗干扰等特性；根据此同步系统，仿真发现混沌同步具有自保持特性，并给出了仿真结果，这一在混沌领域的首次发现为混沌在保密通信的实际应用提供了依据。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。