In Reply to: RE: power transformer design questions or call it debate . posted by grhughes on April 26, 2012 at 06:02:01:
"I tend to stray away from toroids as they are wide band and will pass most any trash on the power line unless they have a shield between the primary and the secondary."
Good sized ferrite beads on the primary side, with the wires looped a couple of times, suppress the power line crud. There are always tradeoffs. Toroids exhibit much lower stray magnetic fields than EI trafos exhibit.
Eli D.
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Follow Ups
- RE: power transformer design questions or call it debate . - Eli Duttman 08:04:48 04/26/12 (4)
- Eli, Give us some ferrite bead part numbers and jobber loci. nt - grhughes 08:23:12 04/26/12 (3)
- RE: Eli, Give us some ferrite bead part numbers and jobber loci. nt - Eli Duttman 08:51:09 04/26/12 (2)
- Thanks! But wouldn't another small toroid ferrite core with balanced leads work better? - grhughes 09:24:02 04/26/12 (1)
- RE: Thanks! LIKE THIS - grhughes 12:16:41 04/26/12 (0)