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1881

  • 單片機(jī)LED顯示屏控制卡原理技術(shù)

    單片機(jī)LED顯示屏控制卡原理技術(shù)

    標(biāo)簽: LED 單片機(jī) 顯示屏 控制卡

    上傳時(shí)間: 2013-06-22

    上傳用戶(hù):eeworm

  • 雙絞線和低通濾波器降低EMI_RFI

    Abstract: Alexander Graham Bell patented twisted pair wires in 1881. We still use them today because they work so well. In addition we have the advantage ofincredible computer power within our world. Circuit simulators and filter design programs are available for little or no cost. We combine the twisted pair and lowpassfilters to produce spectacular rejection of radio frequency interference (RFI) and electromagnetic interference (EMI). We also illustrate use of a precision resistorarray to produce a customizable differential amplifier. The precision resistors set the gain and common mode rejection ratios, while we choose the frequencyresponse.

    標(biāo)簽: EMI_RFI 雙絞線 低通濾波器

    上傳時(shí)間: 2014-11-26

    上傳用戶(hù):Vici

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