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In Reply to: RE: RFI posted by Eli Duttman on February 9, 2016 at 09:27:30:
I see, you're talking about "hash" from the diodes. The chokes I bought are for a different purpose, and I use them before the first cap. This creates a "prefilter" that's very effective at reducing PS ripple. The chokes are much larger than 1.5 mH, but not so large that they create a significant voltage drop. I suppose these chokes also do a good job of cleaning up diode noise, but I see no HF energy of any consequence even without them. That has led me to believe the main filter chokes in a CLC supply do a pretty good job, regardless of their winding capacitance. Maybe this issue isn't so much about circuit topology as it is parts quality. Just out of curiosity, have you ever tried to shield the diodes in the gear you've built or tested? I've been wondering lately if it might be beneficial for reducing noise that's radiated into grid circuits or conducted along ground paths.
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Follow Ups
- RE: RFI - Triode_Kingdom 10:59:23 02/09/16 (22)
- RE: RFI - Eli Duttman 11:56:58 02/09/16 (21)
- RE: RFI - Triode_Kingdom 12:06:34 02/09/16 (20)
- RE: RFI - Eli Duttman 14:09:26 02/09/16 (19)
- RE: RFI - Tre' 09:04:22 02/10/16 (1)
- RE: RFI - Eli Duttman 10:18:02 02/10/16 (0)
- Conduction Angle - Triode_Kingdom 20:05:53 02/09/16 (16)
- RE: Conduction Angle - Eli Duttman 21:35:16 02/09/16 (15)
- RE: Conduction Angle - Triode_Kingdom 08:23:48 02/10/16 (13)
- RE: Conduction Angle - Eli Duttman 10:44:36 02/10/16 (12)
- I wasn't discussing what you hear - Triode_Kingdom 11:45:56 02/10/16 (11)
- RE: I wasn't discussing what you hear - Tre' 19:17:15 02/10/16 (10)
- RE: I wasn't discussing what you hear - Triode_Kingdom 07:13:27 02/11/16 (9)
- RE: I wasn't discussing what you hear - Tre' 07:30:51 02/11/16 (8)
- RE: I wasn't discussing what you hear - Triode_Kingdom 08:54:47 02/11/16 (7)
- RE: I wasn't discussing what you hear - Tre' 09:21:28 02/11/16 (6)
- RE: I wasn't discussing what you hear - Triode_Kingdom 13:15:40 02/11/16 (5)
- RE: I wasn't discussing what you hear - Tre' 14:17:00 02/11/16 (4)
- RE: I wasn't discussing what you hear - Triode_Kingdom 14:44:52 02/11/16 (3)
- RE: I wasn't discussing what you hear - Tre' 17:32:00 02/11/16 (2)
- RE: I wasn't discussing what you hear - Triode_Kingdom 18:53:08 02/11/16 (1)
- RE: I wasn't discussing what you hear - Tre' 20:24:27 02/11/16 (0)
- RE: Conduction Angle - Jim McShane 06:10:50 02/10/16 (0)