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选择合适的CMOS模拟开关-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 2081
驱动LED的电池供电的应用：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 1071
双向电流检测与单输出-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 1216
通道晶体管增强调节的输出电流-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 1258
LVDS多媒体接口在汽车电子领域的应用前景
摘要：数据通信需求的增长造就了多种新型数据接口，这些数据接口针对不同的应用领域提供相应的电平指标。高数据率、高抗干扰性和构造简单成为开发这些接口的关键要求。...
2009-05-03 821
MAX16800测试板
摘要：MAX16800测试板是一个简单的高亮度LED驱动电路板，专为驱动Osram、Lumileds、Nichia、Cree或其它LED驱动设计。测试表明，MAX16800适合用于汽车的内部和外部LED照明，以及商业和工业LE...
2009-05-03 860
使用数字分压器实现车灯调光，以节省功耗、提高效率
摘要：本应用笔记介绍怎样使用低成本数字分压器来实现灯光强弱控制，既节省了功耗又提高了效率。 引言在汽车以及其他照明应用中，通常需要调节内部灯...
2009-05-02 866
下一代汽车照明电源
摘要：目前，汽车中大多采用LED和CCFL作为背光源，两种方案均需要特殊的供电电源。本应用笔记讨论了LED、CCFL灯源的供电方案，可理想用于汽车的内部和外部照明。 ...
2009-05-02 774
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...
2009-05-02 1514
使用MAX15005用于LED应用系统的供电和驱动
摘要：本参考设计是汽车LED应用的完整系统设计。采用MAX15005电流模式控制器，将标准铅酸汽车电池的电压升至21V，用于驱动一串汽车LED。 下列提供了汽车LED系统的参...
2009-05-02 777
交流耦合的优点
摘要：本应用笔记介绍了交流耦合LVDS链路的优势，文章提供了电容选择的注意事项，并讨论了端接拓扑。 概述使用电容实现LVDS数据连接的交流耦合有很多益处...
2009-05-02 5901
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...
2009-05-02 701
选择高亮度LED驱动器用于汽车照明应用-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, ...
2009-05-02 657
保护电流检测放大器反对过压瞬变-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...
2009-05-02 577
电池切换电路制3V的系统-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 1393
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 ...
2009-04-30 1221
Using Dallas Battery Managemen
Abstract: This application note presents to the reader a reference circuit design that allows the use of the Dallas Semiconductor DS2438 battery monitor in a high voltage battery pack. Originally designed for use in battery packs whose vol...
2009-04-30 923
Battery Considerations for Tod
This application note is courtesy of Lou Adams from Tadiran Batteries, Port Washington, NY. Temperature RangeYour battery must work over the temperature range of the finished device. Although this seems obvious many times...
2009-04-30 1319
隔离式电源电信应用-Isolated Power Suppl
Abstract: Simple easy to use high side current sense amps protects power supplies as a result of irregular supply voltage caused by short-circuit conditions. To ensure compliance with all international standards, the desi...
2009-04-30 1209
Technology Changes: From a Por
Abstract: Portable power presents a range of design challenges. While major changes such as new battery technologies make headlines, the minor, almost negligible shifts are arguably more fascinating. The effects of these shifts is often no...
2009-04-30 904
DS2746应用注意事项
DS2746应用注意事项 Abstract: The DS2746 has two auxiliary inputs to allow voltage sampling of resistor divider circuits; these inputs are ideal for measuring thermistor or battery-pack iden...
2009-04-30 818
Lithium-Ion Cell Fuel Gauging
Abstract: This application note describes to the user how to improve remaining capacity estimation for Li-ion battery packs beyond the accuracy level of using a coulomb counter alone. It outlines a methodology using Maxim battery monitor I...
2009-04-30 1165
使用DS2760或DS2761电池监视器多重电池应用-Usi
Abstract: The DS2760 and DS2761 battery monitor and protector are battery management ICs geared mainly for single-cell Li-Ion battery pack applications. Although designed mainly for use in the single cell applications, these devices can be...
2009-04-30 1586
Recommended ESD Protection and
Abstract: This application note presents to the reader a recommended Li-Ion/polymer battery pack circuit reference design using the Dallas Semiconductor DS2438 battery monitor. Special emphasis is placed on placement of the DS2438 in the b...
2009-04-30 860
Inaccuracies of Estimating Rem
Abstract: Implementing a battery fuel gauge can be done in a variety of ways including using voltage measurements or coulomb counting. Although the use of voltage measurement has been a popular method of choice, it does not produce the mos...
2009-04-30 1229
补偿检测电阻自暖气-Compensating for Sen
Abstract: Many of Dallas Semiconductor’s battery monitors contain the option to include an internal sense resistor to measure current. In certain applications, heat generated by the flow of current through the sense resistor can introduc...
2009-04-30 641
双向电流检测与单输出-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...
2009-04-30 1334
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