[time-nuts] Thunderbolt Supply

Hal Murray hmurray at megapathdsl.net
Mon Feb 14 20:33:34 UTC 2011


Has anybody investigated simple L-C (R-L-C) filters rather than linear 
regulators?

The SI-List recently announced a good paper on using ferrite beads.
  http://www.ipblox.com/papers.html
(Currently, it's the top paper.  In case somebody finds this in the archives, 
it's the one marked DesignCon 2011)

Page 5 of the slides has the critical graph.  A ferrite bead is resistive 
over a broad range of frequencies.


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