Advances in low power electronics now allow placementof battery-powered sensors and other devices in locationsfar from the power grid. Ideally, for true grid independence,the batteries should not need replacement, but instead berecharged using locally available renewable energy, suchas solar power. This Design Note shows how to producea Compact battery charger that operates from a small2-cell solar panel. A unique feature of this design is thatthe DC/DC converter uses power point control to extractmaximum power from the solar panel.
標(biāo)簽： 太陽(yáng)能電池板 電池充電 技術(shù)手冊(cè)
上傳時(shí)間： 2014-01-20
上傳用戶：wettetw
The LTC3546 is a dual output current mode buck regulatorwith fl exible output current partitioning. Beyondthe advantages normally associated with dual outputregulators (reduced size, cost, EMI and part count, withimproved effi ciency), the LTC3546’s outputs can bepartitioned for either 3A and 1A outputs, or two 2A outputs.This increases its application range and simplifi esmultiple supply rail designs. A confi gurable Burst Mode®clamp for each output sets the current transition levelbetween Burst Mode operation and forced continuousconduction mode to optimize effi ciency over the entireoutput range. An adjustable switching frequency up to4MHz and internal power MOSFET switches allow forsmall and Compact footprints.
上傳時(shí)間： 2013-11-04
上傳用戶：yxgi5
Avalanche photodiodes (APDs) are widely utilized in laserbased fiberoptic systems to convert optical data intoelectrical form. The APD is usually packaged with a signalconditioning amplifier in a small module. An APD receivermodule and attendant circuitry appears in Figure 1. TheAPD module (figure right) contains the APD and a transimpedance(e.g., current-to-voltage) amplifier. An opticalport permits interfacing fiberoptic cable to the APD’sphotosensitive portion. The module’s Compact constructionfacilitates a direct, low loss connection between theAPD and the amplifier, necessary because of the extremelyhigh speed data rates involved
標(biāo)簽： 雪崩 光電二極管 偏置電壓 電流檢測(cè)電路
上傳時(shí)間： 2013-10-25
上傳用戶：brain kung
This ink marks LTC’s eighth circuit collection publication.1We are continually surprised, to the point of near mystification, by these circuit amalgams seemingly limitlessappeal. Reader requests ascend rapidly upon publication,remaining high for years, even decades. All LTC circuitcollections, despite diverse content, share this popularity,although just why remains an open question. Why isit? Perhaps the form; Compact, complete, succinct andinsular. Perhaps the freedom of selection without commitment,akin to window shopping.
標(biāo)簽： 電源轉(zhuǎn)換 測(cè)量 脈沖電路
上傳時(shí)間： 2014-01-06
上傳用戶：ligi201200
The latest generation of Texas Instruments (TI) boardmountedpower modules utilizes a pin interconnect technologythat improves surface-mount manufacturability.These modules are produced as a double-sided surfacemount(DSSMT) subassembly, yielding a case-less constructionwith subcomponents located on both sides of theprinted circuit board (PCB). Products produced in theDSSMT outline use the latest high-efficiency topologiesand magnetic-component packaging. This providescustomers with a high-efficiency, ready-to-use switchingpower module in a Compact, space-saving package. Bothnonisolated point-of-load (POL) switching regulators andthe isolated dc/dc converter modules are being producedin the DSSMT outline.TI’s plug-in power product line offers power modules inboth through-hole and surface-mount packages. The surfacemountmodules produced in the DSSMT outline use asolid copper interconnect with an integral solder ball fortheir
上傳時(shí)間： 2013-10-10
上傳用戶：1184599859
ATNS是施耐德電氣在全球市場(chǎng)推出的新一代雙電源自動(dòng)轉(zhuǎn)換開(kāi)關(guān)，電流等級(jí)1~630A。ATNS品質(zhì)優(yōu)異，性價(jià)比高，主要適用于建筑項(xiàng)目以及小型工業(yè)項(xiàng)目。
標(biāo)簽： Compact ATNS 雙電源 自動(dòng)轉(zhuǎn)換開(kāi)關(guān)
上傳時(shí)間： 2013-10-11
上傳用戶：daguogai
C51使用手冊(cè) .pdf 第二節(jié)內(nèi)存區(qū)域(Memory Areas)1. Pragram Area由Code 說(shuō)明可有多達(dá)64kBytes 的程序存儲(chǔ)器2. Internal Data Memory:內(nèi)部數(shù)據(jù)存儲(chǔ)器可用以下關(guān)鍵字說(shuō)明data 直接尋址區(qū)為內(nèi)部RAM 的低128 字節(jié)00H 7FHidata 間接尋址區(qū) 包括整個(gè)內(nèi)部RAM 區(qū)00H FFHbdata 可位尋址區(qū) 20H 2FH3. External Data Memory外部RAM 視使用情況可由以下關(guān)鍵字標(biāo)識(shí)xdata 可指定多達(dá)64KB 的外部直接尋址區(qū)地址范圍0000H 0FFFFHpdata 能訪問(wèn)1 頁(yè)(25bBytes)的外部RAM 主要用于緊湊模式(Compact Model)4. Speciac Function Register Memory
上傳時(shí)間： 2013-11-19
上傳用戶：busterman
Although Stellaris microcontrollers have generous internal SRAM capabilities, certain applicationsmay have data storage requirements that exceed the 8 KB limit of the Stellaris LM3S8xx seriesdevices. Since microcontrollers do not have an external parallel data-bus, serial memory optionsmust be considered. Until recently, the ubiquitous serial EEPROM/flash device was the only serialmemory solution. The major limitations of EEPROM and flash technology are slow write speed, slowerase times, and limited write/erase endurance.Recently, serial SRAM devices have become available as a solution for high-speed dataapplications. The N256S08xxHDA series of devices, from AMI Semiconductor, offer 32 K x 8 bits oflow-power data storage, a fast Serial Peripheral Interface (SPI) serial bus, and unlimited write cycles.The parts are available in 8-pin SOIC and Compact TSSOP packages.
標(biāo)簽： Adding Serial SRAM 32
上傳時(shí)間： 2013-10-14
上傳用戶：cxl274287265
winCE msdn講座 XP Embedded Now and the future Windows XP Embedded Developmentand Deployment Model OverviewWindows XP Embedded Component ModelWindows XP Embedded Studio Tools Microsoft WindowsXP Embedded Product Highlights Componentized version of Windows XP Professional~ 12,000 components and updates as of Service Pack 2Flexible localizationSame binaries and API as Windows XP ProfessionalHotfixes and service packsEmbedded Enabling FeaturesRuns on standard PC hardwareSupports boot on hard drives, Compact flash, DiskOnChipand read-only mediaSupport for remote install and remote bootHeadless device and remote management supportIntegration with Microsoft management tools
上傳時(shí)間： 2013-10-31
上傳用戶：jrsoft
MfcCDDB v1.11 A freeware MFC class to support access to CDDB servers Welcome to MfcCDDB, a collection of freeware MFC classes to support access to the Compact Disc DataBases on the Internet .
標(biāo)簽： MfcCDDB collectio freeware to
上傳時(shí)間： 2015-03-13
上傳用戶：mikesering
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