亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

their

  • 如何選擇合適的Logger按鈕

    Abstract: For many first-time users, finding the right logger that meets their needs can be a challenging task. In simple

    標簽: Logger 如何選擇 按鈕

    上傳時間: 2014-01-19

    上傳用戶:縹緲

  • 遠程信息處理數字融合--如何應對新興標準和協議

    Digital convergence, in recent history, has been prevalentin the consumer equipment domain and the designengineers in this area have been struggling with a plethoraof emerging standards and protocols. What lessons can welearn from their struggle? The same dilemmas now existin in-vehicle telematics and infotainment systems but withthe added issues of extremes of temperature, safety,security, and time in market.

    標簽: 遠程信息處理 數字 協議 標準

    上傳時間: 2014-12-23

    上傳用戶:9牛10

  • 小面積和大面積光電二極管的低噪聲放大器

      Photodiodes can be broken into two categories: largearea photodiodes with their attendant high capacitance(30pF to 3000pF) and smaller area photodiodes withrelatively low capacitance (10pF or less). For optimalsignal-to-noise performance, a transimpedance amplifi erconsisting of an inverting op amp and a feedback resistoris most commonly used to convert the photodiode currentinto voltage. In low noise amplifi er design, large areaphotodiode amplifi ers require more attention to reducingop amp input voltage noise, while small area photodiodeamplifi ers require more attention to reducing op amp inputcurrent noise and parasitic capacitances.

    標簽: 光電二極管 低噪聲放大器

    上傳時間: 2013-10-28

    上傳用戶:hanbeidang

  • IC封裝熱計算研究

    Many thermal metrics exist for integrated circuit (IC) packages ranging from θja to Ψjt.Often, these thermal metrics are misapplied by customers who try to use them to estimate junction temperatures in their systems.

    標簽: IC封裝 計算

    上傳時間: 2013-10-18

    上傳用戶:貓愛薛定諤

  • 諧振器論文精選.rar

    Control systems are becoming increasingly dependent on digital processing and so require sensors able to provide direct digital inputs. Sensors based on time measurement, having outputs based on a frequency or phase, have an advantage over conventional analogue sensors in that their outputs can be measured directly in digital systems by pulse counting.

    標簽: 諧振器 論文

    上傳時間: 2013-10-08

    上傳用戶:wuyuying

  • 寄生電容在升壓變壓器中的設計應用

    One of the most critical components in a step-up design like Figure 1 is the transformer. Transformers have parasitic components that can cause them to deviate from their ideal characteristics, and the parasitic capacitance associated with the secondary can cause large resonating current spikes on the leading edge of the switch current waveform.

    標簽: 寄生電容 升壓變壓器 中的設計

    上傳時間: 2013-11-22

    上傳用戶:15070202241

  • 光電轉換電路設計

    OPTOELECTRONICS CIRCUIT COLLECTION AVALANCHE PHOTODIODE BIAS SUPPLY 1Provides an output voltage of 0V to +80V for reverse biasingan avalanche photodiode to control its gain. This circuit canalso be reconfigured to supply a 0V to –80V output.LINEAR TEC DRIVER–1This is a bridge-tied load (BTL) linear amplifier for drivinga thermoelectric cooler (TEC). It operates on a single +5Vsupply and can drive ±2A into a common TEC.LINEAR TEC DRIVER–2This is very similar to DRIVER–1 but its power output stagewas modified to operate from a single +3.3V supply in orderto increase its efficiency. Driving this amplifier from astandard +2.5V referenced signal causes the output transistorsto have unequal power dissipation.LINEAR TEC DRIVER–3This BTL TEC driver power output stage achieves very highefficiency by swinging very close to its supply rails, ±2.5V.This driver can also drive ±2A into a common TEC. Operationis shown with the power output stage operating on±1.5V supplies. Under these conditions, this linear amplifiercan achieve very high efficiency. Application ReportThe following collection of analog circuits may be useful in electro-optics applications such as optical networkingsystems. This page summarizes their salient characteristics.

    標簽: 光電轉換 電路設計

    上傳時間: 2013-10-27

    上傳用戶:落花無痕

  • 射頻集成電路設計John Rogers(Radio Freq

    Radio Frequency Integrated Circuit Design I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.

    標簽: Rogers Radio John Freq

    上傳時間: 2014-12-23

    上傳用戶:han_zh

  • 確保電解電容器的壽命長-LED燈泡為例

    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 application notediscusses this problem with electrolytic capacitors in LED light bulbs and provides an analysis that showshow it is possible to use electrolytics in such products.  

    標簽: LED 電解電容器 壽命

    上傳時間: 2013-11-17

    上傳用戶:asdfasdfd

  • 智能電網安全保護

    Abstract: Stuxnet, a sophisticated virus that damaged Iran'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. Unfortunately,critical industrial infrastructure is not currently designed with security as a key goal, leaving open multipleavenues for an educated and funded attacker to create massive problems. This tutorial outlines somebasic concepts that engineers and product definers should consider to make sure their new projects stayahead of future threats.

    標簽: 智能電網 安全保護

    上傳時間: 2013-11-17

    上傳用戶:llwap

主站蜘蛛池模板: 洛宁县| 博爱县| 嘉禾县| 炉霍县| 萝北县| 咸阳市| 孟州市| 黄平县| 阿坝| 乌兰县| 乐业县| 内江市| 会东县| 荔浦县| 济南市| 南乐县| 镇平县| 元阳县| 鄂托克前旗| 天全县| 蕲春县| 岫岩| 安福县| 泽库县| 伊金霍洛旗| 绥化市| 宣城市| 仁寿县| 遵义市| 罗定市| 台南市| 清水县| 车致| 察哈| 喀喇| 宁都县| 元氏县| 大洼县| 西和县| 怀远县| 平乐县|