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deliver

  • 基于sqlserver2k,reporting service的扩展(auth,render,deliver==)应用(mssql,RS,AS,BI)

    基于sqlserver2k,reporting service的扩展(auth,render,deliver==)应用(mssql,RS,AS,BI),很难得的例子,现在国内资料特别少。

    标签: sqlserver reporting deliver service

    上传时间: 2014-01-11

    上传用户:fnhhs

  • To date tests are still the best solution mankind has found to deliver working software. This book

    To date tests are still the best solution mankind has found to deliver working software. This book is the sum of four years of research and practice in the testing field. The practice comes from my IT consulting background, first at Octo Technology and then at Pivolis the research comes from my involvement with open source development at night and on weekends.

    标签: solution software mankind deliver

    上传时间: 2014-01-10

    上传用户:sclyutian

  • The Book of Zope - How to Build and deliver Web Apps by Beehive.zip

    The Book of Zope - How to Build and deliver Web Apps by Beehive.zip

    标签: Beehive deliver Build Book

    上传时间: 2017-04-26

    上传用户:皇族传媒

  • MulticastClient.java broadcasts message on port 1115. This introduces you how to deliver or transmi

    MulticastClient.java broadcasts message on port 1115. This introduces you how to deliver or transmit data in network and describes the fundamental of various techniques like: unicast, broadcast and multicast.

    标签: MulticastClient broadcasts introduces deliver

    上传时间: 2013-11-29

    上传用户:eclipse

  • LED的电源管理

    A light-emitting diode (LED) is a semiconductor device that emits narrow-spectrum incoherent light when forward-biased.The color of the emitted light depends on the chemical composition of the semiconductor material used, and can benear-ultraviolet, visible or infrared. LEDs are more prevalent today than ever before, replacing traditional incandescent andfluorescent bulbs in many lighting applications. Incandescents use a heated filament, are subject to breakage and burnoutand operate at a luminous efficiency of 2% to 4%. Fluorescents are more efficient, at 7% to 12%, but require highdrive voltage and contain mercury, a toxic substance that may be eventually banned in certain countries. LEDs, however,produce light directly through electroluminescence, operate at low voltage and can deliver over 20% luminous efficiency.

    标签: LED 电源管理

    上传时间: 2013-11-07

    上传用户:xiaoyuer

  • 单片同步稳压器驱动外部元件负载

      The LTC®3414 offers a compact and efficient voltage regulatorsolution for point of load conversion in electronicsystems that require low output voltages (down to 0.8V)from a 2.5V to 5V power bus. Internal power MOSFETswitches, with only 67mW on-resistance, allow theLTC3414 to deliver up to 4A of output current with efficiencyas high as 94%. The LTC3414 saves space by operatingwith switching frequencies as high as 4MHz, enabling theuse of tiny inductors and capacitors.

    标签: 同步稳压器 元件 驱动 负载

    上传时间: 2014-01-02

    上传用户:dongbaobao

  • 100-15V TO 12V DCDC 原理图 PCB BOM表

    高的工作电压高达100V N双N沟道MOSFET同步驱动 The D810DCDC is a synchronous step-down switching regulator controller that can directly step-down voltages from up to 100V, making it ideal for telecom and automotive applications. The D810DCDC uses a constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit, without requiring a sense resistor. A precise internal reference provides 0.5% DC accuracy. A high bandwidth (25MHz) error amplifi er provides very fast line and load transient response. Large 1Ω gate drivers allow the D810DCDC to drive multiple MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN and can also be synchronized to an external clock for switching-noise sensitive applications. Integrated bias control generates gate drive power from the input supply during start-up and when an output shortcircuit occurs, with the addition of a small external SOT23 MOSFET. When in regulation, power is derived from the output for higher effi ciency.

    标签: DCDC 100 12V BOM

    上传时间: 2013-10-23

    上传用户:wd450412225

  • DN457宽输入电压范围同步降压稳压器

      The LTC®3610 is a high power monolithic synchronousstep-down DC/DC regulator that can deliver up to 12Aof continuous output current from a 4V to 24V (28Vmaximum) input supply. It is a member of a high currentmonolithic regulator family (see Table 1) that featuresintegrated low RDS(ON) N-channel top and bottomMOSFETs. This results in a high effi ciency and highpower density solution with few external components.This regulator family uses a constant on-time valleycurrent mode architecture that is capable of operatingat very low duty cycles at high frequency and with veryfast transient response. All are available in low profi le(0.9mm max) QFN packages.

    标签: 457 DN 同步降压

    上传时间: 2013-11-07

    上传用户:moerwang

  • 基于FPGA的高度集成DCDC稳压器

      In a recent discussion with a system designer, the requirementfor his power supply was to regulate 1.5Vand deliver up to 40A of current to a load that consistedof four FPGAs. This is up to 60W of power that must bedelivered in a small area with the lowest height profi lepossible to allow a steady fl ow of air for cooling. Thepower supply had to be surface mountable and operateat high enough effi ciency to minimize heat dissipation.He also demanded the simplest possible solution so histime could be dedicated to the more complex tasks. Asidefrom precise electrical performance, this solution had toremovethe heat generated during DC to DC conversionquickly so that the circuit and the ICs in the vicinity do notoverheat. Such a solution requires an innovative designto meet these criteria:

    标签: FPGA DCDC 集成 稳压器

    上传时间: 2013-11-24

    上传用户:defghi010

  • ARM Welcome Speech_Lifeng

    deliver more functionality to the end-user sooner and more cost-effectively

    标签: Speech_Lifeng Welcome ARM

    上传时间: 2014-01-12

    上传用户:lifangyuan12