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找到约 417 项符合 abstract 的查询结果

工控技术 基于EKF的异步电机直接转矩控制系统

为了提高直接转矩控制(DTC)系统定子磁链估计精度,降低电流、电压测量的随机误差,提出了一种基于扩展卡尔曼滤波(EKF)实现异步电机转子位置和速度估计的方法。扩展卡尔曼滤波器是建立在基于旋转坐标系下由定子电流、电压、转子转速和其它电机参量所构成的电机模型上,将定子电流、定子磁链、转速和转子角位置作为状态变 ...
https://www.eeworm.com/dl/569/41385.html
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测试测量 产品检测中裕度和校准的乐趣

Abstract: This application note presents an overview of electronic margining and its value in detectingpotential system failures before a product ships from the factory. It is a calibration method that effectivelypredicts and allows adjustments to improve product quality. Margining also can be use ...
https://www.eeworm.com/dl/544/41612.html
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测试测量 新一代仪表和电流检测放大器

Abstract: This application note discusses the REF pin functionality in the indirect current-feedbackarchitecture for instrumentation amplifiers. This article compares the importance of a REF buffer in a
https://www.eeworm.com/dl/544/41671.html
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测试测量 高精度温度测量铂电阻温度探测器(PRTDs)和​​ADC

Abstract: Many modern industrial, medical, and commercial applications require temperature measurements in the extended temperature rangewith accuracies of ±0.3°C or better, performed with reasonable cost and often with low power consumption. This article explains how platinumresistance ...
https://www.eeworm.com/dl/544/41751.html
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测试测量 智能照明控制器测量环境光线

Abstract: This application note explains how to design an intelligent lighting controller that senses and measures the ambient lightlevel with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on oroff at specified times. The syst ...
https://www.eeworm.com/dl/544/41783.html
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测试测量 基于MASON公式的多功能二阶通用滤波器设计

基于通用集成运算放大器,利用MASON公式设计了一个多功能二阶通用滤波器,能同时或分别实现低通、高通和带通滤波,也能设计成一个正交振荡器。电路的极点频率和品质因数能够独立、精确地调节。电路使用4个集成运放、2个电容和11个电阻,所有集成运放的反相端虚地。利用计算机仿真电路的通用滤波功能、极点频率和品质因数的 ...
https://www.eeworm.com/dl/544/41908.html
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测试测量 基于Multisim 10的矩形波信号发生器仿真与实现

在Multisim 10软件环境下,设计一种由运算放大器构成的精确可控矩形波信号发生器,结合系统电路原理图重点阐述了各参数指标的实现与测试方法。通过改变RC电路的电容充、放电路径和时间常数实现了占空比和频率的调节,通过多路开关投入不同数值的电容实现了频段的调节,通过电压取样和同相放大电路实现了输出电压幅值的调节 ...
https://www.eeworm.com/dl/544/41912.html
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电子元器件应用 陶瓷电容器的温度和电压的变化

Abstract: The reality of modern, small form-factor ceramic capacitors is a good reminder to always readthe data sheet. This tutorial explains how ceramic capacitor type designations, such as X7R and Y5V,imply nothing about voltage coefficients. Engineers must check the data to know, really know, h ...
https://www.eeworm.com/dl/529/42163.html
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接口技术 谈集成电路的通用接口

Abstract: How can an interface change a happy face to a sad face? Engineers have happy faces when an interface works properly.Sad faces indicate failure somewhere. Because interfaces between microprocessors and ICs are simple—even easy—they are oftenignored until interface failure caus ...
https://www.eeworm.com/dl/511/42396.html
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接口技术 基于EZ-USB的数据传输接口设计

利用EZ-USB接口芯片AN2131Q实现了基于TMS320C5409的水声信号采集及混沌特性研究系统中的高速数据通信,提出了一种采用FIFO缓存芯片实现AN2131Q与TMS320C5409的连接方法,深入研究了EZ-USB序列接口芯片的固件、设备驱动和用户程序开发过程。关键词:AN2131Q; TMS320C5409; IDT72V02;数据通信ABSTRACT: Using AN2131Q as the ...
https://www.eeworm.com/dl/511/42448.html
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