Propeller Head Plaza

RE: This is not an issue.................

71.174.253.220

In Reply to: RE: This is not an issue................. posted by tomsyl1 on May 27, 2008 at 13:18:41

For low power units try the Corcomm 3EEB series or the equivalent.
Give a long look at www.corcom.com and their application notes. Note the frequency responses given. This should take of the primary side of the transformer.
On the secondary side of the transformer I found in my work that if you bypassed the bridge rectifier diodes with a .1 uf to .22 uf cap the rf components would be taken out of the burst leaving the low frequency component only. A power supply using even the most rudimentry form of regulation will squash the conducted component.
The radiated compnonent of this can be tricky. The length of the transformer leads can cause this to be radiated so my general advice is to keep them short. Other than that, good shielding around high input impedances should knock this down into the noise floor.
d.b.

http://www.corcom.com (Open in New Window)

Edits: 05/27/08

Follow Ups:

RE: This is not an issue................. - tomsyl1 00:37:17 05/28/08 (1)
- RE: This is not an issue................. - Dan Banquer 05:22:56 05/28/08 (0)

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