電源/新能源
提供權威的電源和新能源設計及電源管理資訊，內容有醫(yī)療/工業(yè)電源、LED驅動、數(shù)字電源、電池技術、太陽能光伏等電源技術方案，包括電源測試/仿真/認證、便攜電源、電動車/新能源、AC-DC與DC-DC轉換、基準/監(jiān)控/保護電路等專業(yè)領域。
Fault Protection Saves Multipl
Abstract: Discrete components are available to protect against faults caused when a voltage applied to the input of a switch, mux, or signal-line circuit protector exceeds the voltage at the power supply pins. A more practical approach to ...
Selecting the Right CMOS Analo
Abstract: This tutorial outlines the basic construction, operation, and applications of analog switches. On-resistance, flatness, and charge-injection, each a performance-related specification, are defined. Application-specific features in...
2009-04-20 標簽：CMOS 1372
Multiplexer Enables Pseudomult
Abstract: A circuit is described that allows four remote RS-232 transceivers to share a single UART. A dual four-to-one multiplexer permits transceiver IC1 to form a network with the four remote transceivers. RS-232 commu...
2009-04-20 標簽：RS-232 1355
High-Speed Pulse Generator Has
Abstract: As integrated circuits (ICs) speed up, the rise/fall times of most pulse and function generators (5ns typical) become inadequate for measuring time intervals below 20ns. You can overcome this limitation with analog switches or ad...
2009-04-20 標簽：High-Speed 1728
利用模擬開關實現(xiàn)T1/E1/J1的N+1冗余
摘要：具有多端口T1/E1/J1線卡的現(xiàn)代通信系統(tǒng)通過增加冗余來滿足電信網(wǎng)絡的高可用性要求。過去，這些系統(tǒng)曾經(jīng)用繼電器來實現(xiàn)N＋1冗余切換。隨著每個線卡上的T1/E1/J1端口數(shù)和每...
2009-04-20 標簽：模擬開關 2595
Protecting Against Momentary P
Abstract: Impact or vibration can cause momentary interruptions when batteries lose contact. To ensure continuity of power in battery-powered systems, add this three-IC circuit. When you drop a battery-powered device, the...
2009-04-20 標簽： 579
電池與PWM充電電源短路保護
摘要：本應用筆記提供了一個簡單的蜂窩電話電池充電系統(tǒng)的保護方案，避免在基帶處理器閉鎖時損壞電池。該電路通過監(jiān)視處理器和插接操作，避免電池與PWM充電電源短路。 ...
2009-04-20 標簽：PWM 2097
IC驅動多達四個單線圈鎖定繼電器
摘要：單線圈鎖定繼電器在信號路由、音頻、汽車系統(tǒng)類的應用中經(jīng)常被使用。由于線圈電流需要在同一個線圈中雙向傳輸，因此在繼電器的兩個狀態(tài)間對其進行驅動成為一個設計...
2009-04-20 標簽：繼電器 1363
Using DS4510/DS4520/DS4550 to
Abstract: Many high-reliability systems maintain a backup copy of their flash memory should a new software download become unusable for any reason. This application note describes how the DS4510, DS4520, and DS4550 non-volatile I/O expande...
2009-04-20 標簽：Memory 1302
Driving White LEDs in Clamshel
Abstract: A switching-converter IC—designed as a white-LED driver—and an analog switch control three forms of LED illumination in a mobile (clamshell) phone. This circuit multiplexes the drive to three sets of LEDs fo...
2009-04-20 標簽：led 731
節(jié)電模式降低繼電器驅動功耗
摘要：本應用筆記討論具有內置節(jié)電電路、能降低總功耗的繼電器驅動器MAX4822/MAX4824。在典型應用中，總節(jié)電范圍能達5.5%至68.5%，具體數(shù)值取決于所使用的繼電器類型。節(jié)電模式還...
2009-04-20 標簽：繼電器 2020
DS33X162產(chǎn)品線的FAQ
摘要：本應用筆記是DS33X162 EoPDH以太網(wǎng)映射器產(chǎn)品線的常見問題解答(FAQ)。DS33X162產(chǎn)品線可以應用于運營級以太網(wǎng)、以太分界設備、以太網(wǎng)接入、MSPP、DSLAM、ROADM、微波通信、WAN路由器...
2009-04-20 標簽：DS33X162 1647
改善USB 2.0開關系統(tǒng)的響應特性
摘要：本應用筆記介紹如何利用MAX4906EF實現(xiàn)一個超低功耗、低成本的雙USB 2.0端口切換開關。這個電路在幾乎沒有增加電流消耗的情況下為USB設計增加了一個2:1開關，從而使幾個插座...
2009-04-20 標簽：usb 1301
使用MAX4951 SATA雙向轉接器驅動eSATA電纜
摘要：采用增強串行ATA (eSATA)，帶有外部驅動的計算機系統(tǒng)在性能上實際與內部驅動計算機系統(tǒng)相當，要比USB 2.0快得多。eSATA提供單獨的接收/發(fā)送通道，速率高達3.0Gbps，而USB 2.0只是...
2009-04-20 標簽： 769
Robust Contact Monitor Simplif
Abstract: This application note demonstrates how the MAX13362 automotive switch monitor performs during ECU-level testing. The article describes the tests performed and the results obtained. IntroductionThe MAX...
2009-04-20 標簽：design 812
Reference Design for Switching
Abstract: This application shows how the MAX4885E low-capacitance VGA switch can be used to perform the switching function in a laptop computer. The MAX4885E draws nearly zero current, fits into a 4mm x 4mm package, and incorporates most o...
2009-04-20 標簽：VGA 920
Switching VGA Signals in a Not
Abstract: This application shows how the MAX4885E low-capacitance VGA switch can be used to perform the switching function between a notebook computer and a docking station. The MAX4885E draws nearly zero current, fits into a 4mm x 4mm pac...
2009-04-20 標簽：VGA 890
8比特 800Msps高速采樣保持電路的設計
隨著數(shù)字技術的突飛猛進，越來越多的電路系統(tǒng)將A／D轉換器作為一個子模塊集成到系統(tǒng)內部。例如在便攜式數(shù)據(jù)傳輸、數(shù)字視頻和圖像處理等應用系統(tǒng)中，8~12 bit分辨率的嵌入式A...
基于PWM AC—AC變換的電壓補償器設計
基于PWM AC—AC變換的電壓補償器設計 研究表明配電系統(tǒng)中90％以上的擾動都是由電壓降低引起的，常用的低壓補償技術無論是變電站的集中補償、用戶的分散補償，還是桿上...
2009-04-20 標簽： 1799
DC/DC輻照損傷與VDMOS器件1/f噪聲相關性研究
DC/DC輻照損傷與VDMOS器件1/f噪聲相關性研究 大量的研究表明，低頻噪聲除了與產(chǎn)品性能有關之外，還與產(chǎn)品質量和可靠性密切相關。國內外出現(xiàn)了一系列使用低頻噪聲特別是1...
2009-04-20 標簽：DCDC 1166
利用DirectDrive技術從3.3V單電源產(chǎn)生2VRMS
利用DirectDrive 技術從3.3V 單電源產(chǎn)生2VRMS 的線驅動 本應用筆記將Maxim 的DirectDrive™技術與傳統(tǒng)的單電源供電音頻線驅動器相比較，給出...
2009-04-19 標簽：DirectDriv 991
DS318x中CLAD的配置
摘要：本應用筆記介紹了如何配置DS3184中的時鐘速率適配器(CLAD)功能單元。同樣適用于其他Dallas Semiconductor的器件，例如DS3181, DS3182和DS3183。DS3181, DS3182, DS3183和DS3184 (DS318x)集成了ATM...
2009-04-18 標簽：CLAD 1254
DS31256 Loopback Modes
Abstract: This application note shows how to configure various loopback modes of the DS31256 HDLC controller, and how to verify and troubleshoot as necessary. IntroductionThis application note highlights the de...
2009-04-18 標簽：DS31256 1051
DS31256 HDLC Controller Step-b
Abstract: This application note provides an example of how to configure a single T1 port on DS31256 HDLC Controller in Bridge mode. A coding example is discussed step by step for easy adaptation to end user applications to understand how t...
2009-04-18 標簽：mode 1507
單相電能表防竊電的方法及接線圖
單相電能表防竊電的方法 單相電能表接線端子處有一連片，該連片對單相電能表準確計量具有相當重要的作用。據(jù)統(tǒng)計。利用該連片進行...
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