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discussed

  • Continuous wave radars and pulsed radars are discussed.Resolving range and Doppler mbiguities is als

    Continuous wave radars and pulsed radars are discussed.Resolving range and Doppler mbiguities is also discussed in detail.

    標簽: radars Continuous mbiguities and

    上傳時間: 2013-12-19

    上傳用戶:haoxiyizhong

  • A new type of cloak is discussed: one that gives all cloaked objects the appearance of a flat conduc

    A new type of cloak is discussed: one that gives all cloaked objects the appearance of a flat conducting sheet. It has the advantage that none of the parameters of the cloak is singular and can in fact be made isotropic. It makes broadband cloaking in the optical frequencies one step closer.

    標簽: appearance discussed cloaked objects

    上傳時間: 2017-03-30

    上傳用戶:rishian

  • Our first tutorial, Introduction to XML, discussed the basics of XML and demonstrated its potential

    Our first tutorial, Introduction to XML, discussed the basics of XML and demonstrated its potential to revolutionize the Web.

    標簽: Introduction demonstrated XML discussed

    上傳時間: 2013-12-24

    上傳用戶:gtzj

  • 二極管導通開關穩壓器引發的故障時間

      Most circuit designers are familiar with diode dynamiccharacteristics such as charge storage, voltage dependentcapacitance and reverse recovery time. Less commonlyacknowledged and manufacturer specifi ed is diode forwardturn-on time. This parameter describes the timerequired for a diode to turn on and clamp at its forwardvoltage drop. Historically, this extremely short time, unitsof nanoseconds, has been so small that user and vendoralike have essentially ignored it. It is rarely discussed andalmost never specifi ed. Recently, switching regulator clockrate and transition time have become faster, making diodeturn-on time a critical issue. Increased clock rates aremandated to achieve smaller magnetics size; decreasedtransition times somewhat aid overall effi ciency but areprincipally needed to minimize IC heat rise. At clock speedsbeyond about 1MHz, transition time losses are the primarysource of die heating.

    標簽: 二極管 導通 開關穩壓器

    上傳時間: 2013-10-10

    上傳用戶:誰偷了我的麥兜

  • 逐次逼近式AD轉換器研究

    A tutorial on SAR type A/D converters, this note contains detailed information on several 12-bit circuits. Comparator, clocking, and preamplifier designs are discussed. A final circuit gives a 12-bit conversion in 1.8µs. Appended sections explain the basic SAR technique and explore D/A considerations.

    標簽: 逐次逼近 AD轉換器

    上傳時間: 2014-01-21

    上傳用戶:釣鰲牧馬

  • LTC1062的低通濾波器應用

    Highlights the LTC1062 as a lowpass filter in a phase lock loop. Describes how the loop's bandwidth can be increased and the VCO output jitter reduced when the LTC1062 is the loop filter. Compares it with a passive RC loop filter. Also discussed is the use of LTC1062 as simple bandpass and bandstop filter.

    標簽: 1062 LTC 低通濾波器

    上傳時間: 2013-10-24

    上傳用戶:chens000

  • 智能電表和智能電網手冊

    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 describes the concept oflife-cycle security—the idea that embedded equipment in the smart grid must have security designed into theentire life of the product, even back to the contract manufacturer. We also talk about how life-cycle securityapplies to embedded equipment in the smart grid. Potential threats are discussed, as are potential solutionsto mitigate the risks posed by those threats.

    標簽: 智能電表 智能電網

    上傳時間: 2014-12-24

    上傳用戶:熊少鋒

  • 一個100MHz的RMS DC轉換集成電路

    AN22 details the theoretical and application aspects of the LT1088 thermal RMS/DC converter. The basic theory behind thermal RMS/DC conversion is discussed and design details of the LT1088 are presented. Circuitry for RMS/DC converters, wideband input buffers and heater protection is shown.

    標簽: 100 MHz RMS 轉換

    上傳時間: 2013-10-16

    上傳用戶:china97wan

  • 基于ISA總線與KH-9300的數據采集系統

    介紹基于ISA總線與KH-9300的數據采集板卡的設置,詳細說明8254定時計數器及8259中斷控制器的結構特點、工作方式、控制字等,探討中斷類型、中斷處理程序、中斷矢量表及其填寫。重點講述使用TorboC編寫中斷服務程序的方法,應注意的主要問題及程序測試的結果。 Abstract:  The settings of KH-9300 data acquisition board based on the ISA bus is introduced,the structural characteristics,working methods,control characters of the timing counter 8254 and interruptioncontroller 8259 are explained in detail.The interruption type,interrupt handling programs,interruption vector table and its filling also are discussed.Further,great emphasis is put on the method of interrupt service program compiled by Torbo C,the main issues that should be noted,and the results of program testing.

    標簽: 9300 ISA KH 總線

    上傳時間: 2013-11-14

    上傳用戶:qq527891923

  • 基于C8051F060的數據采集存儲系統的設計

    介紹一種基于C8051F060單片機和NAND Flash的數據采集存儲系統,該系統可實現3路信號采樣,每路采樣率為5KS/s,通過異步串行通信接口實現數據傳輸。并詳細說明系統的軟件設計。 Abstract:  An acquisition and storage system based on C8051F060and NAND Flash is designed in this paper.The system is used to sample three-channel of signal,5KSPS each channel,and can upload data to test bench through UART(Universal Asynchronous Receiver/Transmitter).The software design is discussed in detail.

    標簽: C8051F060 數據采集 存儲系統

    上傳時間: 2013-10-12

    上傳用戶:Jesse_嘉偉

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