Abstract: Most hand-held products lack accurate battery-charge monitors ("fuel gauges") because of the misconception that an accurate fuel gauge is difficult to achieve. This article debunks the myths and discusses how to accurately monitor charge at all temperatures, charge and discharge rates, and aging conditions. 无线通信和数据在新一代手机和PDA中的融合为再一次的生产力飞跃创造了条件。。随之而来的将是经济的增长和全新的工作方式,在便携式计算机领域,PC笔记本曾经扮演了类似的开拓者角角。
上传时间: 2013-10-17
上传用户:erkuizhang
Abstract: Most hand-held products lack accurate battery-charge monitors ("fuel gauges") because of the misconception that an accurate fuel gauge is difficult to achieve. This article debunks the myths and discusses how to accurately monitor charge at all temperatures, charge and discharge rates, and aging conditions.
上传时间: 2014-03-18
上传用户:wenwiang
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 power-delivery solutions. Yet sometimes a device has no direct power source, and running wiresor replacing batteries is impractical. Even when long-life batteries are usable, they eventually need to be replaced, which requires aservice call.
标签: 能量收集
上传时间: 2015-01-03
上传用户:zukfu
手机文件浏览程序的另外一个版本! SMan is a system utility that manages your UIQ device. It provides functionality which manufacturers did not provide or which are difficult or impossible to do manually. SMan helps keep your UIQ device running in a "healthy" state and, to a certain degree, allows you to customize the system behaviour of your device.
标签: functionality provides manages utility
上传时间: 2013-12-09
上传用户:独孤求源
21天学会用JAVA开发网络游戏 书籍语言: 简体中文 书籍类型: 程序设计 授权方式: 免费软件 书籍大小: 287 KB 书籍等级: 整理时间: 2004-11-3 20:41:10 With all of the media attention that is focused on the Internet and the World Wide Web, figuring out exactly what they are all about is sometimes difficult. Are they just a neat new way to market products or will they truly offer us a new medium of communication that will someday surpass even televisions and telephones? The answer is, who knows? Unfortunately, the ultimate use for the Internet is still unknown. This is because it is still in such a state of flux that it s pretty much impossible to accurately predict where it will end up. However, you can look at the evidence of what is there now and gain some insight into what the Internet might become, at least in terms of games.
上传时间: 2013-12-20
上传用户:天诚24
-PID controller has been extensively used in the industrial world. But in this controller it is difficult to tune the PID gains. We apply the genetic algorithm(GA) to tune the PID gains. The GA is an optimization algorithm using the biotic genetics.
标签: controller extensively industrial world
上传时间: 2014-01-07
上传用户:爺的气质
Three-dimensional real-time graphics are a prevalent technology nowadays, thanks to the steady rise of processing power and specialized graphics hardware. One of the goals of computer graphics most sought after and difficult to achieve is to reproduce realistic outdoor environments featuring dense forests.
标签: Three-dimensional technology real-time prevalent
上传时间: 2014-01-15
上传用户:坏天使kk
Knowledge of the process noise covariance matrix is essential for the application of Kalman filtering. However, it is usually a difficult task to obtain an explicit expression of for large time varying systems. This paper looks at an adaptive Kalman filter method for dynamic harmonic state estimation and harmonic injection tracking.
标签: application covariance Knowledge essential
上传时间: 2014-01-19
上传用户:litianchu
CFlowchartEditor is an extension of CDiagramEditor. CDiagramEditor is a vector editor, with a CWnd-derived window (CDiagramEditor), a data container (CDiagramEntityContainer) holding the draw-objects, undo stack and managing copy and paste, and objects derived from CDiagramEntity representing objects drawn on screen. CDiagramEditor lacks one feature (that is difficult to implement in both simple and general fashion) - links. Manually maintaining links in a - for example - flowchart or network topography map is unwieldy. Therefore, I ve created a reference implementation for one way of adding this functionality.
标签: CDiagramEditor CFlowchartEditor extension CWnd-d
上传时间: 2015-11-21
上传用户:气温达上千万的
windows开源代码 Microsoft Windows is a complex operating system. It offers so many features and does so much that it s impossible for any one person to fully understand the entire system. This complexity also makes it difficult for someone to decide where to start concentrating the learning effort. Well, I always like to start at the lowest level by gaining a solid
标签: Microsoft operating features windows
上传时间: 2015-11-24
上传用户:zhuyibin