The LISN drawing attached is from A.Pomilio's web page at www.dsce.fee.unicamp.br/~atenor/htmlfile . L1,C1 and R1 are added for measurements below 150Khz. It isn't obvious, but an LISN filter section is expected on both lines. The unmeasured line should be terminated on the output of R3 with 50 ohms.
Rob Legg [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of Ken Javor Sent: Friday, December 03, 1999 6:00 PM To: Ken Javor; [email protected] Cc: [email protected] Subject: Re: LISN schematic for student in Belgium Whoops! Looks like I forgot to attach the schematic. Here goes again. ---------- >From: "Ken Javor" <[email protected]> >To: [email protected] >Cc: [email protected] >Subject: LISN schematic for student in Belgium >Date: Fri, Dec 3, 1999, 11:18 AM > > > CISPR has updated the LISN to include a bleeder resistor between the EMI > port and ground. It does NOT affect LISN impedance in any way. I have > updated the previously drawn schematic to reflect the new LISN > configuration. > > Also, if the addressee wishes to build one of these, he should be familiar > with good rf design techniques. My experience in designing a LISN for > commercial sale was that it took a little finessing. > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > >
<<attachment: LISNschem.gif>>
