首 页文档资料下载资料维修视频包年699元
请登录  |  免费注册
当前位置:精通维修下载 > 文档资料 > 家电技术 > 单元电路介绍 > 电源电路
基于LT4180设计的精密负载调整电源方案
来源:本站整理  作者:佚名  2010-06-20 10:36:30



LT4180是全特性电源控制器,集成有5mA光隔离器,欠压/过压锁住,软起动和±1%内部基准电压. LT4180的虚拟遥测特性包括用户编程的抖动频率和扩展频谱抖动.输入电压从3.1V到50V,主要用在12V高强亮度灯,28V工业系统,大于40W的CAT5电缆系统,AC和DC适配器,井下采集和其它遥控仪表等.本文介绍了LT4180主要特性,方框图以及典型应用电路,包括12V/500mA线性稳压器电路图, 12V/600mA升压稳压器电路图和3.3V隔离反激稳压器电路图.

The LT4180 solves the problem of providing tight load regulation over long, highly resistive cables without requiring an additional pair of remote sense wires. This Virtual Remote Sense™ device continuously interrogates the line impedance and corrects the power supply output voltage via its feedback loop to maintain a steady voltage at the load regardless of current changes.

The LT4180 is a full-featured controller with 5mA optoisolator sink capability, under/overvoltage lockout, soft-start and a ±1% internal voltage reference. The Virtual Remote Sense feature set includes user-programmable dither frequency and optional spread spectrum dither.

The LT4180 works with any topology and type of isolated or nonisolated power supply, including DC/DC converters and adjustable linear regulators.

The LT4180 is available in a 24-pin, SSOP package.

LT4180主要特性:

Tight Load Regulation with Highly Resistive Cables without Requiring Remote Sense Wiring

Compatible with Isolated and Nonisolated Power Supplies

±1% Internal Voltage Reference

5mA Sink Current Capability

Soft-Correct Reduces Turn-On Transients

Undervoltage and Overvoltage Protection

Pin-Programmable Dither Frequency

Optional Spread Spectrum Dither

Wide VIN Range: 3.1V to 50V

24-Pin SSOP Package

LT4180应用:

12V High Intensity Lamps

28V Industrial Systems

High Power (>40 Watts) CAT5 Cable Systems

Wiring Drop Cancellation for Notebook Computer Battery Charging

AC and DC Adaptors

Well-Logging and Other Remote Instrumentation

Surveillance Equipment

[1] [2]  下一页

关键词:

文章评论评论内容只代表网友观点,与本站立场无关!

   评论摘要(共 0 条,得分 0 分,平均 0 分)
Copyright © 2007-2017 down.gzweix.Com. All Rights Reserved .
页面执行时间:91,265.63000 毫秒