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工控技术  Ebase实时数据库手册

Ebase实时数据库系统（Ebase Real-time Database Management System，简称EBase实时数据库）是上海谷益科技有限公司推出的具有自主知识产权的实时数据库管理系统及套件产品。实时数据库系统理论在新领域的扩展，在电力、钢铁、化工、造纸领域有着广阔的应用前景，可以为企业提供高速、实时数据服务，能够对快速变化的数 ...

https://www.eeworm.com/dl/569/41417.html

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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  能量收集系统的设计挑战

Modern electronic systems solve so many difficult problems that they often seem like magic. Nonetheless, these systems all have thesame basic limitation: they need a source of electrical power! Most of the time this is a straightforward challenge for the electronicdesigner, because there are many ...

https://www.eeworm.com/dl/544/41801.html

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测试测量  运算放大器稳定时间的测量

The AN10 begins with a survey of methods for measuring op amp settling time. This commentary develops into circuits for measuring settling time to 0.0005%. Construction details and results are presented. Appended sections cover oscilloscope overload limitations and amplifier frequency compensation ...

https://www.eeworm.com/dl/544/41893.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  LED升压器 QX5305 中文资料

QX5305 是一款高效率，稳定可靠的高亮度LED灯驱动控制IC，内置高精度比较器，off-time控制电路，恒流驱动控制电路等，特别适合大功率，多个高亮度LED灯串恒流驱动。 QX5305采用固定off-time控制工作方式，其工作频率可高达2.5MHz，可使外部电感和滤波电容、体积减少，效率提高。在DIM脚加PWM信号，可调节LED灯的亮度。通 ...

https://www.eeworm.com/dl/529/42194.html

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编辑器/阅读器  TheTool is highy customizable map editor(based on QT) which can be extended via LUA scripts. A first

TheTool is highy customizable map editor(based on QT) which can be extended via LUA scripts. A first implentation is ready and can be published to the public. The editor is the perfect tool who wants to design some 3d games but don t have time to write

https://www.eeworm.com/dl/626/102979.html

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数据库系统  摘要　?　?　?　?　　　　设计时的自动化加快了编码

摘要　?　?　?　?　　　　设计时的自动化加快了编码，并保证所有过程都用相同的命名规范和结构来生成。为了在大型 SQL 项目中尽量提高编码的效率，作者编写了一系列的设计时（design-time）存储过程，用它们来生成运行时（run-time）存储过程，并一直在工程中使用。最近，作者更新了其存储过程以便使用 SQL Server 2000 ...

https://www.eeworm.com/dl/523/103340.html

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Internet/网络编程  The Gray Watson debugging malloc library is C source code for a drop in replacement for the system m

The Gray Watson debugging malloc library is C source code for a drop in replacement for the system malloc & other memory manage ment routines. What is unique about this library is that it contains a number of powerful debugging facilities including very comprehensive heap testing and ex- cellent run ...

https://www.eeworm.com/dl/620/112954.html

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FlashMX/Flex源码  dances Act now and you ll be given a free membership to a top Internet firm who is changing people s

dances Act now and you ll be given a free membership to a top Internet firm who is changing people s lives for the better.Mary L. White of LA. stays at home with her children and works just 3 1/2 hours a day... she now earns twice as much money as she did before. Frank Herns Jr. of NY takes 2 vacati ...

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