The Matrix LED Dynamic Backlight and Drive Circuit's Design 关于点阵式LED动态背光源及其驱动电路的设计
Study of Input Voltage Anti-Disturbance Control of Matrix Converter Fed Induction Motor Drive System 矩阵式变换器驱动异步电机调速系统抑制输入电压扰动的研究
Taking one robot as an example, the algorithm of end stiffness matrix is presented and the effect of stiffness placement of drive system on end deflection is discussed. 结合一个工业机器人实例,提出了终端刚度矩阵的算法,讨论了传动系统刚度配置对终端挠度的影响。
Both of the mice expressed the foreign gene in mammary glands. We concluded preliminarily that this vector, containing matrix attachment region seguence ( MARs), could drive foreign gene to express to milk independent effects of position in transgenic animals. 初步验证了先前构建的含基质附着区序列(MARs)的乳腺表达载体能克服转基因的位置效应,实现转入目的基因的表达,提高乳腺反应器的制备效率。
This control strategy, which employs simultaneous output-voltage and input-current space vector modulation, can regulate the input/ output sinusoidal waveforms of matrix converter with unity input power factor and ensure the good drive performance of induction motor. 空间矢量调制采用输出线电压和输入电流矢量同步调节的控制策略,能实现矩阵式变换器输入输出波形良好的正弦和功率因数为1,并能确保感应电机良好工作。
Amix-control driving method of passive matrix OLED ( PM-OLED) is described to drive high gray scale display. 本文介绍一种用于实现被动有机发光二极管矩阵(PM-OLED)高灰度显示的混合驱动方法。
The paper studies on the vertical bar in display of the matrix COG LCM, and it's found that the main causes are consumption current and drive ability of IC. Several methods of avoiding the effect are introduced. 主要从功耗电流和IC的驱动能力两个方面初步探讨了功耗电流和IC驱动能力是造成显示竖条的主要原因并提出了解决的方法。
Then, a 3-phase to 3-phase matrix converter was built based on 600 V/ 100 A RB-IGBT to drive an induction motor. 在此基础上,使用600V/100A的RB-IGBT实现了一台三相/三相矩阵式变换器样机,用于驱动一台三相异步电机。
The hardware of the DSP-based control system was constructed and the software was designed and written. Experiments of applying the matrix converter to induction motor drive were completed. 以DSP(数字信号处理器)为核心构造了矩阵式变换器控制系统的硬件,进行了软件设计、编程和硬件调试,完成了矩阵式变换器驱动异步电机变频调速实验。
Effect of the Input Filter on Stability of Matrix Converter Drive System 一种改善矩阵变换器系统动态性能和稳定性的控制方法
This system contains all necessary control and data circuitry to interface with CRT, standard ASCII keyboard, matrix line printer, EPROM programmer, dual single side double density floppy disk drive, cassette tape recorder, etc. 系统具有各种必要的控制及数据线路,可以与CRT、标准键盘、针型行打、EPROM编程器、单面双密度软盘驱动器、盒式磁带录音机等相接。
To vehicle road simulation testing, frequency response function matrix of the whole text system should be got by system Identification process; then drive signal, which is satisfied with the testing requirement, should be got by target signal simulation process. 为了有效的进行汽车道路模拟试验,首先要通过系统识别获得整个试验系统的频响函数矩阵[FRF],之后在目标信号模拟过程中获得满足试验要求的驱动信号。
The LFD 8-by-96 Matrix is used folr building up the video module of computer instruments Address to LED matrix unit assumes horizontal drive in regular sequence and vertical gating. LED8×96矩阵适用于构成微型计算机仪表的显示模件,LED矩阵单元寻址采取水平方向顺序激励和垂直方向选通。
Compared with other modulation strategies, it can regulate the input/ output sinusoidal waveforms of matrix converter with unity input power factor and ensure a good drive performance of induction motor. 相比其它控制策略,空间矢量调制策略能实现矩阵变换器输入输出正弦波形良好、功率因数为1,并能确保感应电机良好工作。
The Research of Matrix Converter and the Application in Vector Control Asynchronous Motor Drive System 矩阵变换器的研究及其在异步电机矢量控制系统中的应用
Analysis of the binary oppositions in matrix ( II) proves that moral crisis prevails in the family and the positive force is not powerful enough to drive it out of the crisis. 对矩阵(2)的分析证实了康普生家族深陷于道德危机之中而家族中的积极力量还远远不足以将其从危机中解救出来。
The defects in traditional drive circuit existing in availabele EL monitors are pointed out Matrix drive circuit system for EL monitor is designed using the conception of "balanced drive". 指出了传统EL显示器驱动电路存在的问题。用“平衡驱动”的概念,设计了矩阵式EL显示器驱动电路系统。
A novel 2-step commutation method in RB-IGBT based matrix converter drive system RB-IGBT矩阵变换器传动系统中的一种新颖两步换流策略
Therefore, matrix converter fed induction motor drive systems has high potency in the next generation of ASDs. 因此,矩阵变换器驱动异步电动机系统被称为下一代的交流电气传动模式。
With the manufactured technology of the variable frequency power electronic devices 'components and the development of research methods, the matrix converter has a profound impact in the energy area, AC variable voltage and variable frequency fields and electric drive. 随着电力电子变换装置器件的制造技术不断成熟和研究方法的深入,矩阵变换器将在能源、交流变频调速及电气传动领域中产生深远的影响。
In the foundation of forward and inverse kinematic models, the mapping matrix of speed from drive joint to the output of the moving platform, namely speed Jacobian matrix is proposed. 并根据正逆解方程,给出驱动关节到动平台输出的速度映射矩阵,即雅克比矩阵。
Utilize graph theory, construct weight scale matrix for the garment constraint graph, after some relative treatment on the matrix, a solving route will be gained, and flexible drive of the garment model will also finish continuously. 利用图论方法,构建服装约束图的约束权值矩阵并经过相关处理,获得约束求解路径,进而完成服装模型的柔性驱动。
Indirect matrix converter is a new topology of matrix converter with high quality input/ output waveforms, high input power factor and high power density. It is very suitable to drive induction motor and realize high performance AC drives. 间接式矩阵变换器是一种新型的矩阵变换器拓扑结构,其具有高质量的输入、输出波形,高功率因数等特点,很适合用于驱动异步电机,实现高性能的交流调速。
The emergence of matrix converter motor drive control system has been considered as a perfect option. 矩阵变换器电机驱动控制系统的出现为大家提供了一种理想的选择。
The simulation result s indicated that DTC of matrix converter motor drive system have characters of good performance in dynamic response and input power factor close to 1. 仿真结果表明:矩阵变换器电机驱动系统的直接转矩控制具有良好的转矩动态响应性能及近似于1的输入功率因数。
Multi-drive system based on indirect matrix converter with high quality input/ output waveforms, high power density and high compact, is very applicable in adjustable speed drive system of AC motors. 基于间接矩阵变换器的多机传动系统结构紧凑、功率密度大,并且系统的输入输出性能优良,适用于交流调速。
Also AC-AC matrix converters hold good potentialities in AC drive systems owing to its unity power factor, without bulky capacitors, and sinusoidal input currents. 交&交矩阵变换器可以实现输入电流波形的正弦化,输入功率因数可以调节,没有大体积的直流电容环节,在交流传动系统中具有良好的应用前景。