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  • 100-15V TO 12V DCDC 原理圖 PCB BOM表

    高的工作電壓高達(dá)100V N雙N溝道MOSFET同步驅(qū)動(dòng) 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.

    標(biāo)簽: DCDC 100 12V BOM

    上傳時(shí)間: 2013-10-24

    上傳用戶(hù):wd450412225

  • DN465 超低功耗升壓轉(zhuǎn)換器

      Industrial remote monitoring systems and keep-alivecircuits spend most of their time in standby mode. Manyof these systems also depend on battery power, so powersupply effi ciency in standby state is very important tomaximize battery life. The LT®8410/-1 high effi ciencyboost converter is ideal for these systems, requiringonly 8.5μA of quiescent current in standby mode. Thedevice integrates high value (12.4M/0.4M) output feedbackresistors, signifi cantly reducing input current whenthe output is in regulation with no load. Other featuresinclude an integrated 40V switch and Schottky diode,output disconnect with current limit, built in soft-start,overvoltage protection and a wide input range, all in atiny 8-pin 2mm × 2mm DFN package.

    標(biāo)簽: 465 DN 超低功耗 升壓轉(zhuǎn)換器

    上傳時(shí)間: 2013-11-23

    上傳用戶(hù):新手無(wú)憂(yōu)

  • 超低功率轉(zhuǎn)換器的控制方案消除開(kāi)關(guān)噪聲

      An essential component of a noise-free audio device isa clean power supply, but few switching regulators canoperate at high efficiency while keeping the switchingfrequency out of the audio band. The LTC®3620 fills thisvoid. It is a high efficiency 15mA buck regulator with aprogrammable minimum switching frequency, making itpossible to virtually eliminate audible switching noise. Theinternal synchronous switches and low quiescent currentof this buck regulator provide the ability to maintain highefficiency, while its small footprint makes it ideal for tiny,low power audio applications.

    標(biāo)簽: 超低功率 控制 開(kāi)關(guān)噪聲 方案

    上傳時(shí)間: 2013-10-21

    上傳用戶(hù):非衣2016

  • Wide-input dc/dc modules offer

    When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.

    標(biāo)簽: Wide-input modules offer dc

    上傳時(shí)間: 2014-12-24

    上傳用戶(hù):dragonhaixm

  • PL2303 USB to Serial Adapter

    The PL2303 USB to Serial adapter is your smart and convenient accessory forconnecting RS-232 serial devices to your USB-equipped Windows host computer. Itprovides a bridge connection with a standard DB 9-pin male serial port connector inone end and a standard Type-A USB plug connector on the other end. You simplyattach the serial device onto the serial port of the cable and plug the USB connectorinto your PC USB port. It allows a simple and easy way of adding serial connectionsto your PC without having to go thru inserting a serial card and traditional portconfiguration.This USB to Serial adapter is ideal for connecting modems, cellular phones, PDAs,digital cameras, card readers and other serial devices to your computer. It providesserial connections up to 1Mbps of data transfer rate. And since USB does not requireany IRQ resource, more devices can be attached to the system without the previoushassles of device and resource conflicts.Finally, the PL-2303 USB to Serial adapter is a fully USB Specification compliantdevice and therefore supports advanced power management such as suspend andresume operations as well as remote wakeup. The PL-2303 USB Serial cable adapteris designed to work on all Windows operating systems.

    標(biāo)簽: Adapter Serial 2303 USB

    上傳時(shí)間: 2013-11-01

    上傳用戶(hù):ghostparker

  • WP276 -可編程的開(kāi)發(fā)和測(cè)試

    We all know the benefits of using FieldProgrammable Gate Arrays (FPGAs): no NRE, nominimum order quantities, and faster time-tomarket.In an ideal world, designs would never needto be changed because of design errors, but we allknow that sometimes this is necessary.

    標(biāo)簽: 276 WP 可編程 測(cè)試

    上傳時(shí)間: 2013-11-04

    上傳用戶(hù):leixinzhuo

  • XAPP144 -設(shè)計(jì)CPLD多電壓系統(tǒng)

    Today’s digital systems combine a myriad of chips with different voltage configurations.Designers must interface 2.5V processors with 3.3V memories—both RAM and ROM—as wellas 5V buses and multiple peripheral chips. Each chip has specific power supply needs. CPLDsare ideal for handling the multi-voltage interfacing, but do require forethought to ensure correctoperation.

    標(biāo)簽: XAPP CPLD 144 電壓

    上傳時(shí)間: 2013-11-10

    上傳用戶(hù):yy_cn

  • XAPP328-使用CPLD設(shè)計(jì)MP3播放器

      MP3 portable players are the trend in music-listening technology. These players do not includeany mechanical movements, thereby making them ideal for listening to music during any type ofactivity. MP3 is a digital compression technique based on MPEG Layer 3 which stores music ina lot less space than current CD technology. Software is readily available to create MP3 filesfrom an existing CD, and the user can then download these files into a portable MP3 player tobe enjoyed in almost any environment.

    標(biāo)簽: XAPP CPLD 328 MP3

    上傳時(shí)間: 2013-11-23

    上傳用戶(hù):nanxia

  • PCB電源設(shè)計(jì)經(jīng)典資料

    |Introduction􀂄􀂄 Basic Concept􀂄􀂄 Tips to layout Power circuit􀂄􀂄 Type of Power circuit Basic Concept􀂄􀂄 Maximum Current calculation􀂄􀂄 Resistance of Copper􀂄􀂄 ideal power supply & noise􀂄􀂄 Capacitor & Inductor􀂄􀂄 Power consumption􀂄􀂄 Function of power circuit

    標(biāo)簽: PCB 電源設(shè)計(jì)

    上傳時(shí)間: 2013-12-10

    上傳用戶(hù):JIEWENYU

  • 賽靈思電機(jī)控制開(kāi)發(fā)套件簡(jiǎn)介(英文版)

      The power of programmability gives industrial automation designers a highly efficient, cost-effective alternative to traditional motor control units (MCUs)。 The parallel-processing power, fast computational speeds, and connectivity versatility of Xilinx® FPGAs can accelerate the implementation of advanced motor control algorithms such as Field Oriented Control (FOC)。   Additionally, Xilinx devices lower costs with greater on-chip integration of system components and shorten latencies with high-performance digital signal processing (DSP) that can tackle compute-intensive functions such as PID Controller, Clark/Park transforms, and Space Vector PWM.   The Xilinx Spartan®-6 FPGA Motor Control Development Kit gives designers an ideal starting point for evaluating time-saving, proven, motor-control reference designs. The kit also shortens the process of developing custom control capabilities, with integrated peripheral functions (Ethernet, PowerLink, and PCI® Express), a motor-control FPGA mezzanine card (FMC) with built-in Texas Instruments motor drivers and high-precision Delta-Sigma modulators, and prototyping support for evaluating alternative front-end circuitry.

    標(biāo)簽: 賽靈思 電機(jī)控制 開(kāi)發(fā)套件 英文

    上傳時(shí)間: 2013-10-28

    上傳用戶(hù):wujijunshi

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
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