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(nèi)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。
小型高電壓升壓轉換器-Small High-Voltage
The biasing of avalanche photodiodes (APDs), piezoelectric transducers (PZTs), vacuum fluorescent displays (VFDs), and microelectromechanical systems (MEMS) require high-voltage power supplies. This app note presents three topologies (Figu...
2009-05-04 標簽：轉換器 2685
選擇合適的系列電壓基準源的絕對精度電壓輸出數(shù)模轉換器設計-S
Abstract: This article provides an in depth analysis, procedure, and selection tables for selecting the optimum series voltage reference for voltage output DACs. It covers all of the important parameters such as: input supply voltage, refe...
Current Limited DC-DC Controll
Abstract: USB powered devices require a regulated supply. Unfortunately, the USB bus voltage can vary from 4V to 9V. Configuring the MAX668 boost controller into step-up/step-down topology can generate a current-limited regulated supply. ...
2009-05-04 標簽：current 1848
Proper Layout and Component Se
正確的布局和元件選擇控制電磁干擾 Abstract: Understanding the physics of voltage regulator topologies is important in designing power systems for EMI and EMC compliance. In particular, the physical principl...
2009-05-04 標簽：電磁干擾 1573
選擇合適的CMOS模擬開關-Selecting the Ri
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...
2009-05-04 標簽：CMOS 2323
理想性因數(shù)補償和串聯(lián)電阻差異熱感二極管-Compensati
Abstract: When using an external thermal diode to measure temperature, the accuracy of the temperature measurement depends on the characteristics of the external diode. Two critical parameters that affect measurement accuracy are ideality ...
Convert the MAX1937/8/9 from L
To prevent excessive power dissipation during output short circuit, the MAX1937/MAX1938/MAX1939 provide a latch off feature under either short circuit or under-voltage-lockout condition. Once the output is latched off either the input or t...
2009-05-04 標簽：MAX1937 765
新增高電壓能力的MAX471/MAX472高側電流檢測放大器
Abstract: An avalanche diode and current source provide a floating power supply to allow high-side current sense amplifiers to work at up to 300V. The MAX471 and MAX472 are complete bi-directional high-side current sense ...
驅動LED的電池供電的應用：控制亮度功率高效-Driving
Abstract: White light-emitting diode (WLED) drivers provide high efficiency and brightness matching for LCD backlighting in displays. To control brightness, these drivers regulate current going into LEDs that are arranged in either serial ...
2009-05-04 標簽：led 1258
雙向電流檢測與單輸出-Bi-directional Curr
Abstract: Battery operated devices often need to monitor both charge and discharge currents. A dual current-sense amplifier and differential amplifier are combined to produce a single output voltage that indicates magnitude and direction o...
2009-05-04 標簽：電流 1403
選擇最佳的電壓基準源
摘要：電壓基準源簡單、穩(wěn)定的基準電壓，作為電路設計的一個關鍵因素，電壓基準源的選擇需要考慮多方面的問題并作出折衷。本文討論了不同類型的電壓基準源以及它們的關鍵...
2009-05-03 標簽： 679
全陶瓷電容設計的降壓/反相型3A、+/-5V電源
摘要：MAX8538雙路同步buck控制器能夠提供3A的+5V、-5V輸出。利用一個控制器作為同步整流降壓(buck)轉換，而另一個通過變壓器輸出負壓。電路支持軟啟動和軟關斷。 這里...
2009-05-03 標簽：電容 1014
滿足AMD K8低功耗移動處理器規(guī)范的電源
摘要：本應用筆記描述了一個完全滿足AMD® K8低功耗移動處理器規(guī)范的兩相、同步整流型降壓調節(jié)器。包括一個1.2V、27.3A參考設計的詳細電路工作原理、電路圖、元件清單以及測試...
2009-05-03 標簽：處理器 1573
通道晶體管增強調節(jié)的輸出電流-Pass Transistor
Abstract: A 5V linear regulator with external pass transistor (which provides an additional, parallel path for load current) delivers twice as much output current (150mA to 300mA) while maintaining 5V regulation. In Figur...
2009-05-03 標簽：晶體管 1485
LVDS多媒體接口在汽車電子領域的應用前景
摘要：數(shù)據(jù)通信需求的增長造就了多種新型數(shù)據(jù)接口，這些數(shù)據(jù)接口針對不同的應用領域提供相應的電平指標。高數(shù)據(jù)率、高抗干擾性和構造簡單成為開發(fā)這些接口的關鍵要求。...
2009-05-03 標簽：lvds 990
MAX16800測試板
摘要：MAX16800測試板是一個簡單的高亮度LED驅動電路板，專為驅動Osram、Lumileds、Nichia、Cree或其它LED驅動設計。測試表明，MAX16800適合用于汽車的內(nèi)部和外部LED照明，以及商業(yè)和工業(yè)LE...
2009-05-03 標簽：MAX16800 1030
EMAT導線檢測技術在現(xiàn)場試用
EMAT導線檢測技術在現(xiàn)場試用 調查顯示在上世紀90年代末ACSR 導線的致命性故障主要是斷股造成的。隨后的調查也證明斷...
使用數(shù)字分壓器實現(xiàn)車燈調光，以節(jié)省功耗、提高效率
摘要：本應用筆記介紹怎樣使用低成本數(shù)字分壓器來實現(xiàn)燈光強弱控制，既節(jié)省了功耗又提高了效率。 引言在汽車以及其他照明應用中，通常需要調節(jié)內(nèi)部燈...
2009-05-02 標簽：分壓器 1160
1 Dimming Ratio with the DS388
Abstract: This application note describes how CCFL lamps can be dimmed and how a user can maximize the dimming ratio of a CCFL inverter by using the DS3881 and DS3882 CCFL controllers. The note offers guidelines for practical implementatio...
使用MAX15005用于LED應用系統(tǒng)的供電和驅動
摘要：本參考設計是汽車LED應用的完整系統(tǒng)設計。采用MAX15005電流模式控制器，將標準鉛酸汽車電池的電壓升至21V，用于驅動一串汽車LED。 下列提供了汽車LED系統(tǒng)的參...
MAX5073雙通道降壓轉換器工作于2MHz開關頻率的參考設
摘要：MAX5073是一款可工作于降壓或升壓模式的雙路轉換器。作為雙路降壓轉換器工作時，該器件兩路輸出可分別提供高達2A和1A的輸出電流。該參考設計主要說明MAX5073作為降壓轉換...
交流耦合的優(yōu)點
摘要：本應用筆記介紹了交流耦合LVDS鏈路的優(yōu)勢，文章提供了電容選擇的注意事項，并討論了端接拓撲。 概述使用電容實現(xiàn)LVDS數(shù)據(jù)連接的交流耦合有很多益處...
2009-05-02 標簽：lvds 6233
導線清潔技術的研發(fā)和ACSR和ACSS導線承壓連接件的安裝
導線清潔技術的研發(fā)和ACSR和ACSS導線承壓連接件的安裝 承壓連接件的故障會給輸變電系統(tǒng)的安全可靠運行帶來極大的風險。這類故...
基于Metso DNA技術的DCS
基于Metso DNA技術的DCS Metso Automation 將為新電站提供1 套基于MetsoDNA技術的全套DCS系統(tǒng)。 ...
How to Prevent Flicker Caused
Abstract: The DS3881 and DS3882 CCFL controllers are used in automotive, industrial, and avionic applications to backlight LCD panels that require a high dimming ratio. These CCFL controllers use both analog lamp-current amplitude modulati...
2009-05-02 標簽：Flicker 923
選擇高亮度LED驅動器用于汽車照明應用-Selecting
Abstract: This application note provides an overview of HB LED driver selection criteria for automotive lighting applications. It reviews HB LED driver topologies and recommends configurations for various automotive lighting applications, ...
保護電流檢測放大器反對過壓瞬變-Protect Curren
Abstract: This application note describes methods of protecting lower-voltage current sense amplifiers from high-voltage spikes and transients. Such conditions are frequently encountered in automotive car battery operation, and are referre...
2009-05-02 標簽：放大器 776
電池切換電路制3V的系統(tǒng)-Battery-Switchove
Abstract: Portable systems often require operation from batteries or from a wall adapter. The MAX8865 low-dropout (LDO) linear regulator is used to provide the switchover function while supplying a regulator 2.84V that can deliver 100mA. ...
2009-04-30 標簽：電路 1539
Using Dallas' 1-Wire ICs i
Abstract: This application note presents to the reader a recommended Li-Ion battery pack circuit design for using Dallas Semiconductor 1-Wire® products with low-side N-channel safety FETs. Critical design considerations concerning the ...
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