In Reply to: RE: Where does the current come from? posted by Tre' on August 26, 2012 at 17:03:06:
Two things.
First, in my experience large value caps as the last element do not give me a sound I would call musical.
Second, your calculations for the choke only work for frequencies well below the self resonant frequency. (the SRF is typically 500hz - 2Khz)
2A... the inductance you are using for your calculations are at a specified frequency which is typically near line frequency and the inductance at higher frequencies is typically much lower.
2B... above the self resonant frequency the device becomes capacitive in nature which presents a dropping impedance as frequency continues to go up.
2C so essentially at low frequencies the choke is inductive. at self resonance it is resistive and at high frequencies it is capacitive.
this sorta makes things clear as mud huh :-)
dave
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Follow Ups
- RE: Where does the current come from? - dave slagle 18:16:28 08/26/12 (128)
- RE: Where does the current come from? - Lew 05:34:53 08/27/12 (75)
- RE: Where does the current come from? - tube wrangler 13:36:33 08/27/12 (74)
- "Permanently" is so inflexible... - Steve O 14:56:46 08/27/12 (73)
- RE: "Permanently" is so inflexible... - tube wrangler 20:35:16 08/27/12 (72)
- Lack of Substance - Triode_Kingdom 05:54:17 08/28/12 (71)
- RE: Lack of Substance - tube wrangler 09:59:40 08/28/12 (70)
- RE: the many and the few... - deathtube 667 11:35:52 08/28/12 (69)
- Statism?Totalitarianism? Why the politics? - Ray Moth 16:56:20 09/01/12 (6)
- RE: ??? - deathtube 667 19:10:15 09/01/12 (5)
- Statists are . . . - Ray Moth 19:59:00 09/01/12 (4)
- RE: Statists are . . . - op48no1 20:02:55 09/01/12 (3)
- RE: Statists are . . . - Ray Moth 22:46:43 09/01/12 (2)
- RE: Statists are . . . - op48no1 23:27:46 09/01/12 (1)
- RE: Statists are . . . - Ray Moth 17:35:34 09/07/12 (0)
- RE: the many and the few... - gusser 18:28:39 08/28/12 (24)
- RE: the many and the few... - tube wrangler 20:24:12 08/28/12 (21)
- RE: 100% correct... - deathtube 667 17:03:31 08/29/12 (19)
- Sycophancy - op48no1 23:29:06 08/29/12 (18)
- RE: you are wrong... - deathtube 667 17:42:24 08/30/12 (17)
- Dennis's and Jeff's eternal legacy - op48no1 23:52:02 08/30/12 (15)
- RE: are you for real? - deathtube 667 04:30:04 08/31/12 (14)
- Are YOU for real, or just a drama queen?? - Ray Moth 17:12:07 09/01/12 (10)
- RE: Are YOU for real, or cyberbully?... - deathtube 667 18:22:31 09/01/12 (9)
- RE: Are YOU for real, or cyberbully?...LOL! - Ray Moth 14:59:25 09/05/12 (1)
- RE: OK, you got me ... LOL!!! - deathtube 667 16:33:58 09/05/12 (0)
- I vote for drama queen. - op48no1 18:28:07 09/01/12 (6)
- RE: nice try... - deathtube 667 18:36:35 09/01/12 (5)
- RE: nice try... - op48no1 20:01:43 09/01/12 (4)
- RE: sorry... - deathtube 667 04:55:45 09/02/12 (3)
- RE: sorry... - op48no1 09:52:50 09/02/12 (2)
- RE: i tried... - deathtube 667 10:37:31 09/02/12 (1)
- RE: i tried... - op48no1 11:31:45 09/02/12 (0)
- RE: are you for real? - LinuxGuru 04:55:01 08/31/12 (2)
- Some things can be fixed. - op48no1 09:15:14 08/31/12 (1)
- Looks like the original link is down now - op48no1 10:33:03 09/01/12 (0)
- RE: you are wrong... - Tre' 21:53:58 08/30/12 (0)
- RE: the many and the few... - Stephen R 12:01:33 08/29/12 (0)
- RE: the many and the few... - cpotl 19:58:29 08/28/12 (1)
- RE: the many and the few... - drlowmu 00:10:24 08/29/12 (0)
- RE: the many and the few... - Triode_Kingdom 16:48:26 08/28/12 (0)
- RE: the many and the few... - mach1 16:45:19 08/28/12 (35)
- RE: the many and the few... - tube wrangler 20:49:25 08/28/12 (34)
- RE: the many and the few... - cpotl 21:17:09 08/28/12 (33)
- Slagle is the actual scientist here... - Joe Roberts 09:58:41 09/01/12 (29)
- RE: Slagle is the actual scientist here... - cpotl 12:53:43 09/01/12 (28)
- RE: Slagle is the actual scientist here... - Joe Roberts 11:20:23 09/02/12 (27)
- RE: Slagle is the actual scientist here... - cpotl 14:43:48 09/02/12 (26)
- RE: Slagle is the actual scientist here... - Joe Roberts 16:34:19 09/02/12 (25)
- RE: Slagle is the actual scientist here... - cpotl 18:00:05 09/02/12 (24)
- RE: Slagle is the actual scientist here... - Joe Roberts 19:52:04 09/02/12 (23)
- Interesting Factoid - gusser 10:25:30 09/03/12 (22)
- RE: Interesting Factoid - Joe Roberts 11:34:06 09/03/12 (19)
- RE: Interesting Factoid - gusser 13:46:58 09/03/12 (18)
- RE: Interesting Factoid - LinuxGuru 14:02:46 09/03/12 (3)
- RE: Interesting Factoid - gusser 15:00:17 09/03/12 (2)
- RE: Interesting Factoid - LinuxGuru 04:12:02 09/04/12 (1)
- RE: Interesting Factoid - gusser 11:03:18 09/04/12 (0)
- RE: Interesting Factoid - Joe Roberts 14:02:40 09/03/12 (13)
- RE: Interesting Factoid - gusser 15:15:35 09/03/12 (12)
- RE: Interesting Factoid - Joe Roberts 17:24:23 09/03/12 (7)
- Skin effect! - gusser 11:35:32 09/04/12 (1)
- RE: Skin effect! - Joe Roberts 12:24:02 09/04/12 (0)
- RE: Interesting Factoid - cpotl 17:50:34 09/03/12 (4)
- RE: Interesting Factoid - Joe Roberts 18:27:56 09/03/12 (3)
- Addendum - Joe Roberts 18:50:47 09/03/12 (2)
- RE: Addendum - cpotl 19:34:31 09/03/12 (1)
- RE: Addendum - Stephen R 05:33:11 09/04/12 (0)
- RE: Interesting Factoid - cpotl 16:41:33 09/03/12 (3)
- RE: Interesting Factoid - Joe Roberts 20:13:10 09/03/12 (2)
- RE: Interesting Factoid - cpotl 23:47:36 09/03/12 (1)
- RE: Interesting Factoid - Joe Roberts 00:53:22 09/04/12 (0)
- RE: Interesting Factoid - dave slagle 10:40:59 09/03/12 (1)
- RE: Interesting Factoid - gusser 10:57:27 09/03/12 (0)
- RE: the many and the few... - drlowmu 07:50:13 08/29/12 (1)
- RE: the many and the few... - cpotl 08:23:29 08/29/12 (0)
- Thanks Chris, Well Said! - Triode_Kingdom 21:40:00 08/28/12 (0)
- RE: Where does the current come from? - Triode_Kingdom 20:29:36 08/26/12 (50)
- RE: Where does the current come from? - cpotl 04:26:27 08/27/12 (15)
- RE: Where does the current come from? - Stephen R 06:06:34 08/27/12 (13)
- rant warning - Tre' 08:22:20 08/27/12 (12)
- RE: rant warning - dave slagle 16:35:16 08/27/12 (6)
- RE: rant warning - Tre' 19:05:04 08/27/12 (5)
- RE: rant warning - cpotl 05:28:43 08/28/12 (0)
- RE: rant warning - dave slagle 19:29:38 08/27/12 (3)
- RE: rant warning - Tre' 20:11:25 08/27/12 (2)
- RE: rant warning - dave slagle 20:33:13 08/27/12 (1)
- RE: rant warning - Tre' 08:22:27 08/28/12 (0)
- RE: rant warning - tube wrangler 14:15:05 08/27/12 (2)
- RE: rant warning - Ray Moth 22:28:42 09/01/12 (0)
- RE: rant warning - gusser 14:53:53 08/27/12 (0)
- RE: rant warning - Stephen R 09:27:35 08/27/12 (1)
- Amen! - gusser 11:22:46 08/27/12 (0)
- RE: Where does the current come from? - Triode_Kingdom 05:53:19 08/27/12 (0)
- RE: Where does the current come from? - dave slagle 21:27:58 08/26/12 (33)
- RE: Where does the current come from? - Triode_Kingdom 05:44:21 08/27/12 (32)
- RE: Where does the current come from? - dave slagle 08:28:26 08/27/12 (4)
- RE: Where does the current come from? - Triode_Kingdom 12:36:17 08/27/12 (3)
- RE: Where does the current come from? - dave slagle 16:29:56 08/27/12 (2)
- The Last Cap - Triode_Kingdom 17:38:19 08/27/12 (1)
- RE: The Last Cap - dave slagle 19:52:43 08/27/12 (0)
- Answer number ONE of two, 2007 - drlowmu 07:39:48 08/27/12 (11)
- Absolute nonsense - Triode_Kingdom 08:17:43 08/27/12 (2)
- RE: Absolute nonsense - amnesiac 17:48:23 08/28/12 (0)
- RE: Absolute nonsense - drlowmu 09:40:33 08/27/12 (0)
- RE: Answer number TWO of two, 2010 - drlowmu 07:46:41 08/27/12 (7)
- RE: Answer number TWO of two, 2010 - mikeyb 10:45:19 08/27/12 (0)
- The circuit is wrong - Triode_Kingdom 08:26:53 08/27/12 (5)
- RE: The circuit is wrong - drlowmu 09:38:12 08/27/12 (4)
- You're in way over your head - Triode_Kingdom 12:48:36 08/27/12 (2)
- RE: You're in way over your head - drlowmu 13:23:35 08/27/12 (1)
- Yeah, yeah, heard it all before... - Triode_Kingdom 17:52:36 08/27/12 (0)
- Yes, it does! - mikeyb 10:46:26 08/27/12 (0)
- RE: Where does the current come from? - Stephen R 06:11:07 08/27/12 (14)
- Yes, yes, yes - Triode_Kingdom 08:35:22 08/27/12 (13)
- RE: Yes, yes, yes - grindstone 22:34:17 08/27/12 (0)
- RE: Yes, yes, yes - hennfarm 19:12:17 08/27/12 (0)
- RE: Yes, yes, yes - dave slagle 16:41:17 08/27/12 (0)
- RE: Yes, yes, yes - Stephen R 08:49:02 08/27/12 (9)
- RE: Yes, yes, yes - Triode_Kingdom 12:42:59 08/27/12 (0)
- RE: Yes, yes, yes - Tre' 11:17:40 08/27/12 (7)
- RE: Yes, yes, yes - Stephen R 11:30:40 08/27/12 (6)
- RE: Yes, yes, yes - Tre' 11:53:06 08/27/12 (5)
- RE: Yes, yes, yes - Stephen R 12:04:17 08/27/12 (4)
- RE: Yes, yes, yes - drlowmu 13:13:31 08/27/12 (2)
- Then Get Real - Triode_Kingdom 15:43:50 08/27/12 (1)
- RE: Then Get Real - drlowmu 21:56:51 08/27/12 (0)
- RE: Yes, yes, yes - Tre' 12:15:55 08/27/12 (0)
- RE: Where does the current come from? - Tre' 19:53:21 08/26/12 (0)