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Supply

  • MR16 LED驅動MR16 LED燈與電子變壓器兼容

    Abstract: There are differences between the operation of low-frequency AC transformers and electronic transformersthat Supply current to MR16 lamps, and there are also differences in the current draw for MR16 halogen lamps andMR16 LED lamps. These contrasts typically prevent an MR16 LED lamp from operating with most electronictransformers. This article explains how a high-brightness (HB) LED driver optimized for MR16 lamps will allow LEDlamps to be compatible with most electronic transformers.A similar version of this article appeared on Display Plus, July 7, 2012 and in German in Elektronikpraxis, October 1,2012.

    標簽: LED MR 16 驅動

    上傳時間: 2013-10-14

    上傳用戶:playboys0

  • 電信、數據通信和工業電源產品

    In industrial applications, high voltage power Supply spikes with durations ranging from a few microseconds to hundreds of millisecondsare commonly encountered. The electronics in these systems must not only survive transient voltage spikes, but in many cases alsooperate reliably throughout the event.

    標簽: 電信 數據通信 工業 電源產品

    上傳時間: 2013-11-07

    上傳用戶:redmoons

  • 精確的可調式輸出過電壓保護IC解決方案

    返馳式(Flyback) 電源供應器是交換式電源設計供應器(Switch Power Supply,SPS)的一種,為工業界常用之電路架構,其特點如下表所示,圖一所示為返馳式轉換器(Flyback Converter)電路。 一般設計SPS需要一些保護來提高系統設備之穩定安全,尤其是輸出過電壓保護極為重要,這個輸出過電壓保護目的是防止電氣設備上的元件之絕緣遭受過電壓的破壞。一般過電壓的測試方法是將回授Open讓系統呈現段回路狀況,導致一次側能量無限制提供給二次測來達到輸出過電壓現象。

    標簽: 可調式 保護IC 輸出 方案

    上傳時間: 2013-11-06

    上傳用戶:haoxiyizhong

  • 用于汽車無線電和信息娛樂系統的8V開關電源

    Abstract: This application note illustrates an intermediate 8V switching power Supply for an automotive radio and infotainment system.The design withstands the complete automotive input voltage range (including cold crank and load dump conditions), assuring a stable8V Supply for common subsystems such as a CD driver, LCDs, and a radio module in modern infotainment systems. To avoiddisturbance in the AM and FM bands, the switching power Supply runs at a fixed frequency of 2MHz, enabling an ideal solution forradio systems.

    標簽: 汽車無線電 信息娛樂系統 開關電源

    上傳時間: 2013-11-20

    上傳用戶:feitian920

  • 隔離電源設計手冊

    Abstract: This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input,±15V (±12V) output, isolated power Supply. The Oceanside design includes a high-efficiency step-up controller, a36V H-bridge transformer driver for isolated supplies, a wide input range, and adjustable output low-dropout linearregulator (LDO). Test results and hardware files are included.  

    標簽: 隔離電源 設計手冊

    上傳時間: 2013-10-12

    上傳用戶:jinyao

  • 電平轉換控制功率MOSFET

    Abstract: Some power architectures require the power Supply sequencer (or system manager) to controldownstream power MOSFETs to allow power to flow into branch circuits. This application note explains howsystem power sequencing and level shifting can be accomplished using a low-voltage system manager

    標簽: MOSFET 電平轉換 控制 功率

    上傳時間: 2013-11-02

    上傳用戶:wys0120

  • 為您的FPGA選擇合適的電源

    Abstract: There are many things to consider when designing a power Supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/tracking and the voltage ripple limits. This application noteexplains these and other power-Supply considerations that an engineer must think through whendesigning a power Supply for an FPGA.

    標簽: FPGA 電源

    上傳時間: 2013-11-12

    上傳用戶:金苑科技

  • 電源供應器與數字電位器校準應用筆記

    Abstract: A resistive feedback network is often used to set the output voltage of a power Supply. A mechanical potentiometer (pot)conveniently solves the problem of adjusting a power Supply. For easier automatic calibration, a mechanical pot can be replaced witha digital pot. This application note presents a calibration solution that uses a digital pot, because digipots are smaller, do not movewith age or vibration, and can be recalibrated remotely. This proposed solution reduces the susceptibility of the system to thetolerance of the digital pot's end-to-end resistance, making the solution optimal fordesigners. This application note also explainssome of the equations required to calculate the resistor chain values and to use a digital pot in this way. A spreadsheet withstandard reisistor values is available for easy calculations.

    標簽: 電源供應器 數字電位器 應用筆記 校準

    上傳時間: 2013-10-31

    上傳用戶:caiguoqing

  • XAPP946-適用于Virtex-4 RocketIO MGT的開關電源

      This document presents design techniques and reference circuits that power Virtex™-4 FXRocketIO™ multi-gigabit transceivers (MGTs) operating at data rates below 3.125 Gb/s.When using multiple transceivers, it is sometimes preferred to power them from a switchingpower Supply. However, switching power supplies generate noise that affects transceiver

    標簽: RocketIO Virtex XAPP 946

    上傳時間: 2013-11-18

    上傳用戶:huang111

  • 100-15V TO 12V DCDC 原理圖 PCB BOM表

    高的工作電壓高達100V N雙N溝道MOSFET同步驅動 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.

    標簽: DCDC 100 12V BOM

    上傳時間: 2013-10-24

    上傳用戶:wd450412225

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