搜索结果
找到约 1,648 项符合
word-analysis 的查询结果
PCB相关 磁芯电感器的谐波失真分析
磁芯电感器的谐波失真分析 摘  要：简述了改进铁氧体软磁材料比损耗系数和磁滞常数ηB，从而降低总谐波失真THD的历史过程，分析了诸多因数对谐波测量的影响，提出了磁心性能的调控方向。 关键词：比损耗系数， 磁滞常数ηB ，直流偏置特性DC-Bias，总谐波失真THD  Analysis on THD of the fer rite co res u ...
PCB相关 开关电源EMI设计(英文版)
Integrated EMI/Thermal Design forSwitching Power SuppliesWei ZhangThesis submitted to the Faculty of theVirginia Polytechnic Institute and State Universityin partial fulfillment of the requirements for the degree of
Integrated EMI/Thermal Design forSwitching Power SuppliesWei Zhang(ABSTRACT)This wor ...
电源技术 确保电解电容器的寿命长-LED灯泡为例
Abstract: Electrolytic capacitors are notorious for short lifetimes in high-temperature applications such asLED light bulbs. The careful selection of these devices with proper interpretation of their specifications isessential to ensure that they do not compromise the life of the end product. This ...
电源技术 电压基准的理解和应用
 
Specifying the right reference and applying it correctly isa more difficult task than one might first surmise, consideringthat references are only 2- or 3-terminal devices.Although the word “accuracy” is most often spoken inreference to references, it is dangerous to use this ...
单片机编程 LT-1B MSP430F149学习板
MSP430F149学习板的word资料，方便直接打印。
单片机编程 Microchip PIC系列单片机RS232通讯应用
Digitemp Junior – An RS-232 Port-Powered Digital Thermometer
Digitemp Jr. is a device that is designed to measure
and report ambient temperature. When connected to
an RS-232 port on any PC, it will periodically measure
and report in ASCII form the ambient temperature in
degrees Celsius ...
单片机编程 基于MSP430F1611单片机的音频信号分析仪设计
为了使音频信号分析仪小巧可靠，成本低廉，设计了以2片MSP430F1611单片机为核心的系统。该系统将音频信号送入八阶巴特沃兹低通滤波器，对信号进行限幅放大、衰减、电平位移、缓冲，并利用一单片机负责对前级处理后的模拟信号进行采样，将采集得到的音频信号进行4 096点基2的FFT计算，并对信号加窗函数提高分辨率，另 ...
单片机编程 基于PIC16C71的数字水温配制阀的设计
设计了一种基于PIC16C71单片机的数字水温配制阀。该配制阀采用NTC热敏电阻作温度传感器，与固定电阻组成简单分压电路作为水温测量电路，利用PIC16C71单片机内置的8位A/D转换器把热敏电阻上的模拟电压转换为数字量，PIC16C71单片机控制直流电机驱动混水阀调节冷热水的混合比例实现水温调节。给出了控制电路图，对水温 ...
单片机编程 通用1553B总线的信息监控系统
在航电系统维护过程中，为解决定位故障的效率和降低维修成本等问题，提出了基于ICD（Interface Control Document，接口控制文件）的1553B总线的信息监控系统模型。该系统运用数据采集卡对总线中传输的信号有无失真、偏差等电气特性进行检测，并使用1553B通讯卡通过测控软件LabWindows/CVI编程与ICD数据库的动态链接，实现总 ...
单片机编程 PIC单片机的RS232通讯程序
Digitemp Jr. is a device that is designed to measure
and report ambient temperature. When connected to
an RS-232 port on any PC, it will periodically measure
and report in ASCII form the ambient temperature in
degrees Celsius. These temperature readings can be
monitored with any terminal program. If ...