S> A technique for reducing the amount of {Radio Frequency Interference} Spread via power Supply connectionS. VCC iS a common name for the non-ground power Supply line in circuitS baSed on bipolar tranSiStorS. When part of a circuit generateS lotS of radio-frequency noiSe, that portion of the power plane can be iSolated from the reSt of the circuit and power delivered to it via a {low paSS filter}, uSually a {PI filter}, aSShown in the diagram below. Source ________inductor_________ load | | capacitor capacitor | | ground ground ThiS helpS to Shield the reSt of the circuit from the noiSe generated by the load. (1998-01-26)
