摘要：本文介紹了一種將低電壓PWM信號轉(zhuǎn)換成放大、緩沖后的線性輸出的電路，適用于風(fēng)扇速度控制，允許在3.3V輸入時提供12V風(fēng)扇的線性控制。 Maxim提供各種PWM輸出的...

摘要：對于那些想要測量系統(tǒng)中溫度的設(shè)計師來說，有多種技術(shù)可供選用。熱敏電阻、熱電偶、RTD及溫度傳感器IC，它們在特定情況下都具有相應(yīng)的優(yōu)勢及劣勢。本文對當(dāng)前幾種最常...

Abstract: This application note demonstrates how to make a simple system that monitors temperature and analog voltages remotely. On meeting certain alarm conditions, the system can send SMS messages, which are then converted to E-mail and ...

摘要：MAX6650和MAX6651是利用風(fēng)扇轉(zhuǎn)速反饋控制無刷直流風(fēng)扇轉(zhuǎn)速的風(fēng)扇轉(zhuǎn)速調(diào)節(jié)器，典型應(yīng)用中，風(fēng)扇一般采用5V至12V供電。本應(yīng)用筆記主要介紹如何利用MAX6650和MAX6651控制高壓風(fēng)扇...

摘要：利用電橋電路精確測量電阻及其它模擬量的歷史已經(jīng)很久遠(yuǎn)。本文講述電橋電路的基礎(chǔ)并演示如何在實際環(huán)境中利用電橋電路進(jìn)行精確測量，文章詳細(xì)介紹了電橋電路應(yīng)用中...

Abstract: A temperature-sensor chip is powered by the Tx channel of an RS-232 interface chip, and the signal (a squarewave with frequency proportional to the sensor-package temperature) is returned via the Rx channel. A s...

摘要：本文回顧了通用溫度傳感器的主要特性，重點(diǎn)介紹RTD PT100溫度變送器，并提供了一種簡單的方法對PT100輸出信號進(jìn)行線性化處理和...

Abstract: A circuit is described that transmits temperature data over an IR link, thus allowing isolation of the temperature sensor. The circuit consists of an IR transmitter, an IR receiver, and a temperature sensor. The...

摘要：為了在Windows 98 PC系統(tǒng)配合電池管理和熱管理產(chǎn)品的評估板使用DS9123O USB適配器，用戶需要正確安裝驅(qū)動程序，本應(yīng)用筆記介紹了該驅(qū)動程序的安裝流程。 在運(yùn)行W...

PROFIBUS的介紹 PROFIBUS的概念已成為一個在IEC61158和IEC61784中通用的開放標(biāo)準(zhǔn) 目前世界...

Abstract: Most remote-diode temperature-sensor data sheets recommend 10-mil PC board trace widths, and 10-mil spacing between traces for connecting the sensor to the thermal diode. However, narrower traces and closer spacing may be used, a...

Abstract: Circuit reduces acoustic noise by converting PWM fan drive to linear. Fans are a necessary part of many thermal management strategies, but fans can cause excessive levels of audible noise when operating at full ...

DCS與PLC的區(qū)別和共通  ○控制類產(chǎn)品名目繁多，各家叫法不一。通常使用的控制類產(chǎn)品包括DCS、PLC兩大類。我們又將DCS的概念拓展到FCS。 ...

摘要：長期以來電子計時一直缺少高精度的解決方案，主要原因是石英晶體的溫度特性較差。為了提高32.768kHz石英晶體的計時精度，設(shè)計人員采用了各種不同的技術(shù)。本文介紹了一...

RS485通訊注意事項  一、如何布線　　走線走得好，可以很大程度減少干擾的影響，提高通訊的可靠性，但我們在實踐中往往對此認(rèn)識不足。如為了走線...

Abstract: This application note describes how to use a MAXQ2000 microcontroller to control DC fan speed and monitor temperature from a thermistor or iButton?. IntroductionWith its numerous features, the MAX...

摘要：MAX6642是一款高精度、低成本遠(yuǎn)端/本地溫度傳感器?？梢愿鶕?jù)本設(shè)計指南用MAX6642代替其它傳統(tǒng)的溫度傳感器，例如MAX6617或MAX6657。 ...

摘要：MAX1464是一款高性能數(shù)字信號調(diào)理器，包括一個內(nèi)部溫度傳感器，該傳感器可用來校正與溫度相關(guān)的信號，或作為一個性能可與業(yè)界領(lǐng)先的溫度傳感器相媲美的獨(dú)立溫度計。本...

摘要：MAX1464是一款高性能、低成本、低功耗、多通道、基于微處理器的數(shù)字式傳感器信號調(diào)理器，該器件還集成了閃存和溫度傳感器。本文給出了用戶可能提出的各種各樣的問題和...

Abstract: The components shown enable this temperature-to-period converter (IC1) to interface with standard industrial logic levels, while operating on a -48V telecomm systems bus. The circuit presented features the MAX6576 digital tempera...