搜索：Designed - 虫虫下载站

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 ...

https://www.eeworm.com/dl/501/22307.html

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电源技术  智能电网安全保护

Abstract: Stuxnet, a sophisticated virus that damaged Iran&#39;s nuclear capability, should be an eye openerfor the world. We can choose to learn something very narrow (how to combat the Stuxnet virus) or wecan choose to focus on the larger goal of thwarting the next type of creative cyber attack. ...

https://www.eeworm.com/dl/505/23219.html

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电源技术  智能电表和智能电网手册

Abstract: Investment in smart meters and smart grid end equipment continues to grow worldwide as countriestry to make their electric delivery systems more efficient. However, as critical as the electric deliveryinfrastructure is, it is normally not secured and thus subject to attack. This article ...

https://www.eeworm.com/dl/505/23357.html

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电源技术  利用纤巧型负载点电路来简化电源电压的跟踪和排序

&nbsp; Multiple-voltage electronics systems often requirecomplex supply voltage tracking or sequencing, whichif not met, can result in system faults or even permanentfailures in the fi eld. The design diffi culties in meetingthese requirements are often compounded in distributedpowerarchitecture ...

https://www.eeworm.com/dl/505/24296.html

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电源技术  多相DC/DC控制器精度和带宽限制

&nbsp; Speed and accuracy don&rsquo;t always go hand-in-handin DC/DC converter systems&mdash;that is, until now. TheLTC3811 is a dual output, fi xed frequency current modeDC/DC switching regulator controller designed for one oftoday&rsquo;s most demanding power supply applications: highcurrent, ...

https://www.eeworm.com/dl/505/24321.html

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电源技术  测量和控制的实用电路分析

&nbsp; This collection of circuits was worked out between June1991 and July of 1994. Most were designed at customerrequest or are derivatives of such efforts. All representsubstantial effort and, as such, are disseminated here forwider study and (hopefully) use.1 The examples areroughly arranged ...

https://www.eeworm.com/dl/505/24386.html

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电源技术  基于开关电容技术的锁定放大器设计

锁定放大是微弱信号检测的重要手段。基于相关检测理论，利用开关电容的开关实现锁定放大器中乘法器的功能，提出开关电容和积分器相结合以实现相关检测的方法，并设计出一种锁定放大器。该锁定放大器将微弱信号转化为与之相关的方波，通过后续电路得到正比于被测信号的直流电平，为后续采集处理提供方便。测量数据表明锁定放 ...

https://www.eeworm.com/dl/505/24425.html

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单片机编程  基于8098单片机的SPWM变频调速系统

　　数字控制的交流调速系统所选用的微处理器、功率器件及产生PWM波的方法是影响交流调速系统性能好坏的直接因素。在介绍了正弦脉宽调制(SPWM)技术的基础上，设计了一种以8098单片机作为控制器，以智能功率模块IPM为开关器件的变频调速系统。通过软件编程，产生正弦脉冲宽度调制波形来控制绝缘栅双极晶体管的导通和关断， ...

https://www.eeworm.com/dl/502/29059.html

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单片机编程  基于89C52的二极管特性测试器的设计

　　利用单片机具有的智能程序控制的特点，设计了基于STC89C52单片机的"二极管特性测试器"，可对二极管一般特性进行快速测试。通过稳定线性电流源给二极管加载恒定电流，然后由高精度模数转换器测试其压降，以此为基础可判断二极管好坏、检测二极管极性和测试二极管伏安特性等，避免了用万用表测试只能测得极性而不知其特 ...

https://www.eeworm.com/dl/502/29065.html

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单片机编程  Microchip PIC系列单片机RS232通讯应用

Digitemp Junior &ndash; 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 ...

https://www.eeworm.com/dl/502/29089.html

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