In Reply to: RE: Tried "flywheel" filter + extra LC section with Triad C40X ... posted by Chip647 on October 8, 2016 at 07:38:58:
There is an advantage in ripple reduction in 2 LC section critical L input filters.
But that is not a huge win because the ripple is reduced by the OPT turns ratio, so the flywheel also performs well enough in that regard.
The 3 stage LC flywheel filter perform better in PSUD2 step current tests in terms of settling time and regulation at point of use.
If there are any marked differences that would appear in the baseband Hz's that would effect THD, THD+N, IMD or beat note distortion or any other operation parameter of note, I have not gone that far in testing or comparing critical vs. sub-critical L filters to make any statements pro or con.
As of now, I will stay with the 3 stage flywheel.
Thanks for the comments.
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Follow Ups
- RE: converting to critical L input filters or not ... - deathtube 667 04:09:45 10/09/16 (15)
- RE: converting to critical L input filters or not ... - drlowmu 09:43:51 10/10/16 (4)
- RE: converting to critical L input filters or not ... - cpotl 18:53:38 10/10/16 (2)
- RE: converting to critical L input filters or not ... - PakProtector 09:08:07 10/11/16 (0)
- An oxymoron for sure!... - gusser 19:02:17 10/10/16 (0)
- RE: sent email ... - deathtube 667 12:12:27 10/10/16 (0)
- RE: converting to critical L input filters or not ... - Chip647 07:17:20 10/09/16 (9)
- RE: converting to critical L input filters or not ... - Tre' 10:24:35 10/09/16 (8)
- RE: peak currents not a major concern for low power SE - deathtube 667 04:10:40 10/10/16 (7)
- RE: peak currents not a major concern for low power SE - Tre' 08:07:43 10/10/16 (3)
- RE: good point ... - deathtube 667 09:37:42 10/10/16 (1)
- RE: good point ... - Tre' 12:06:23 10/10/16 (0)
- RE: peak currents not a major concern for low power SE - Triode_Kingdom 09:18:18 10/10/16 (0)
- Good for you! - Chip647 06:57:42 10/10/16 (2)
- RE: LOL!!! - deathtube 667 12:49:36 10/10/16 (1)
- RE: LOL!!! - Chip647 15:16:58 10/10/16 (0)