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电源技术 高功率PoE PD接口与集成反激式控制器

  To this day, Power over Ethernet (PoE) continues to gainpopularity in today’s networking world. The 12.95Wdelivered to the Powered Device (PD) input supplied bythe Power Sourcing Equipment (PSE) is a universal supply.Each PD provides its own DC/DC conversion from anominal 48V supply ...
https://www.eeworm.com/dl/505/24317.html
下载: 107
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电源技术 跟踪和排序功能的紧凑型双通道降压转换器

  Typical industrial and automotive applications requiremultiple high current, low voltage power supply solutionsto drive everything from disc drives to microprocessors.For many of these applications, particularly thosethat have size constraints, the LT3501® dual step-downconverter is a ...
https://www.eeworm.com/dl/505/24322.html
下载: 41
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电源技术 DN428微型同步升压转换器

  Alkaline batteries are convenient because they’re easy tofi nd and relatively inexpensive, making them the powersource of choice for portable instruments and devicesused for outdoor recreation. Their long shelf life alsomakes them an excellent choice for emergency equipmentthat may ...
https://www.eeworm.com/dl/505/24329.html
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电源技术 超级电容器备用电源系统的手持设备数据保护

  Handheld electronic devices play a key role in our everydaylives. Because dependability is paramount, handhelds arecarefully engineered with lightweight power sources forreliable use under normal conditions. But no amount ofcareful engineering can prevent the mistreatment theywill undergo ...
https://www.eeworm.com/dl/505/24348.html
下载: 130
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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 ...
https://www.eeworm.com/dl/505/24360.html
下载: 27
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电源技术 雪崩光电二极管的偏置电压和电流检测电路

  Avalanche photodiodes (APDs) are widely utilized in laserbased fiberoptic systems to convert optical data intoelectrical form. The APD is usually packaged with a signalconditioning amplifier in a small module. An APD receivermodule and attendant circuitry appears in Figure 1. TheAPD modul ...
https://www.eeworm.com/dl/505/24376.html
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电源技术 信号源,调节器和电源电路分析

  Occasionally, we are tasked with designing circuitry for aspecific purpose. The request may have customer originsor it may be an in-house requirement. Alternately, a circuitmay be developed because its possibility is simply tooattractive to ignore1. Over time, these circuits accumulate,en ...
https://www.eeworm.com/dl/505/24377.html
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电源技术 陶瓷输入电容可导致过压瞬变

  A recent trend in the design of portable devices has beento use ceramic capacitors to filter DC/DC converter inputs.Ceramic capacitors are often chosen because of theirsmall size, low equivalent series resistance (ESR) and highRMS current capability. Also, recently, designers havebeen loo ...
https://www.eeworm.com/dl/505/24378.html
下载: 111
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单片机编程 基于ARM单片机的自动测高测距小车

生活中许多目标的高度和水平距离需要进行测量。目前主要的测量方法，仍以传统的皮尺丈量为主，测量效率不高，有时还很不方便，没有技术成熟的数字式测高测距产品。以基本的数学方法为理论依据，利用遥控小车做为载体，采用角度传感器测量角度、霍尔传感器测量水平距离等，通过单片机LM3S615进行数据计算，实现了对待测目标 ...
https://www.eeworm.com/dl/502/29167.html
下载: 181
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单片机编程 单片机P0口的片外数据存储器扩展

单片机作为一种微型计算机，其内部具有一定的存储单元（8031除外），但由于其内部存储单元及端口有限，很多情况下难以满足实际需求。为此介绍一种新的扩展方法，将数据线与地址线合并使用，通过软件控制的方法实现数据线与地址线功能的分时转换，数据线不仅用于传送数据信号，还可作为地址线、控制线，用于传送地址信号和控 ...
https://www.eeworm.com/dl/502/29174.html
下载: 171
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