In Reply to: order of regulation.... posted by Jeff Davison on May 30, 2012 at 13:39:20:
CCS first, feeding the VR tube. Voltage drop across the CCS is a good thing.It lowers the capacitance of the MosFet. Just be sure to use big heat sinks.
Set the CCS for the current you expect your circuit to draw plus about 15ma. for the VR tube.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 05/30/12
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Follow Ups
- RE: order of regulation.... - Tre' 14:24:09 05/30/12 (37)
- RE: order of regulation.... - Jeff Davison 19:44:43 05/30/12 (36)
- RE: order of regulation.... Current? - bequerel 05:28:49 06/14/12 (1)
- RE: order of regulation.... Current? - Jeff Davison 08:28:03 06/14/12 (0)
- My mistake - Tre' 21:44:21 05/30/12 (33)
- RE: My mistake - Jeff Davison 23:16:16 05/30/12 (32)
- RE: My mistake - Triode_Kingdom 05:38:42 05/31/12 (0)
- RE: My mistake - Naz 00:28:21 05/31/12 (30)
- RE: My mistake - Jeff Davison 09:20:39 05/31/12 (29)
- Back to basics - Naz 19:17:57 05/31/12 (25)
- RE: Back to basics - Jeff Davison 22:27:59 05/31/12 (24)
- RE: Back to basics - Triode_Kingdom 22:39:48 05/31/12 (23)
- RE: Back to basics - Jeff Davison 22:53:19 05/31/12 (22)
- RE: Back to basics - Stuben 13:45:38 06/01/12 (1)
- RE: Back to basics - Jeff Davison 16:24:41 06/01/12 (0)
- RE: Back to basics - Naz 23:56:29 05/31/12 (18)
- RE: Back to basics - Jeff Davison 00:44:48 06/01/12 (10)
- Try these values ... - Naz 17:25:45 06/01/12 (0)
- RE: Back to basics - Triode_Kingdom 10:21:53 06/01/12 (8)
- RE: Back to basics - danlaudionut 11:11:14 06/01/12 (7)
- RE: Back to basics - Triode_Kingdom 20:46:31 06/01/12 (6)
- RE: Back to basics - danlaudionut 00:17:22 06/02/12 (5)
- RE: Back to basics - Triode_Kingdom 16:28:48 06/02/12 (4)
- RE: Back to basics - danlaudionut 00:40:05 06/03/12 (3)
- RE: Back to basics - dave slagle 08:05:06 06/03/12 (2)
- RE: Back to basics - danlaudionut 13:52:49 06/03/12 (1)
- RE: Back to basics - dave slagle 15:52:23 06/03/12 (0)
- RE: Back to basics - danlaudionut 00:08:46 06/01/12 (6)
- RE: Back to basics - Naz 17:30:48 06/01/12 (2)
- RE: Back to basics - danlaudionut 00:23:58 06/02/12 (1)
- RE: Back to basics - Naz 05:45:27 06/02/12 (0)
- RE: Back to basics - Jeff Davison 00:51:02 06/01/12 (2)
- RE: Back to basics - danlaudionut 01:27:24 06/01/12 (1)
- RE: Back to basics - Jeff Davison 00:25:51 06/05/12 (0)
- RE: Back to basics: yes except the CCS with likely not - Minussss3db 23:39:57 05/31/12 (0)
- RE: My mistake - danlaudionut 10:59:43 05/31/12 (1)
- Regulator followed by CCS...this is done all the time - Minussss3db 12:55:43 05/31/12 (0)
- RE: My mistake - Tre' 10:39:24 05/31/12 (0)