CAD CAM EDM DRO - Yahoo Group Archive

Re: 80V Toroid & Ferrite Beads

Posted by jmkasunich
on 2003-12-09 06:18:16 UTC
--- In CAD_CAM_EDM_DRO@yahoogroups.com, JanRwl@A... wrote:
> In a message dated 12/9/2003 12:14:19 AM Central Standard Time,
> admin@i... writes:
> Since it's a center tap transformer you can run the windings in
> parallel.
> How???

It's not actually center tapped - it is a dual secondary
transformer. See the picture at
http://www.coilws.com/Toroidal%20Power%20Tx/Toroidal_Pwr_dim.php

It is actually 2 independent 40V windings. If you want 80V,
you connect the two windings in series (connect 4 to 5, take
power from 3 and 6). That would give you 80V AC at 9.37A.
After rectification and filtering you would get 113V DC at
about 6.6A.

To use it in parallel, connect 4 to 6, and 3 to 5, and take
power from 3 and 6. That gives you 40V AC at 18.8A. After you
rectify it you'll have about 56V DC at 13.2A.

56 Volts is not a bad fit with the Gecko. There's little to
gain by pushing the limit of the drivers - especially since
the voltage may rise 10% or so at light load, and another 10%
if you have high line voltage.

All in all, I'd say he picked the right transformer, even if
he did it for the wrong reason. ;-)

John Kasunich

Discussion Thread

John Delaney 2003-12-08 17:40:54 UTC 80V Toroid & Ferrite Beads Jon Anderson 2003-12-08 18:17:23 UTC Re: [CAD_CAM_EDM_DRO] 80V Toroid & Ferrite Beads Jerry Kimberlin 2003-12-08 18:32:53 UTC Re: [CAD_CAM_EDM_DRO] 80V Toroid & Ferrite Beads John Delaney 2003-12-08 18:45:48 UTC Re: 80V Toroid & Ferrite Beads John Delaney 2003-12-08 18:47:46 UTC Re: 80V Toroid & Ferrite Beads Jerry Kimberlin 2003-12-08 19:28:45 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads John Delaney 2003-12-08 20:56:21 UTC Re: 80V Toroid & Ferrite Beads industrialhobbies 2003-12-08 22:13:26 UTC Re: 80V Toroid & Ferrite Beads JanRwl@A... 2003-12-08 23:27:13 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads jmkasunich 2003-12-09 06:18:16 UTC Re: 80V Toroid & Ferrite Beads Jon Elson 2003-12-09 09:37:18 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Carlos Guillermo 2003-12-09 10:41:41 UTC RE: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Bill P @ ... 2003-12-09 10:52:53 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads RichD 2003-12-09 14:00:05 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Carlos Guillermo 2003-12-09 14:21:07 UTC RE: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads JanRwl@A... 2003-12-09 14:49:35 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Dave Dillabough 2003-12-09 16:02:38 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads John Delaney 2003-12-09 20:01:46 UTC Re: 80V Toroid & Ferrite Beads C.S. Mo 2003-12-09 20:58:29 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Jon Elson 2003-12-09 21:59:11 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Carlos Guillermo 2003-12-10 00:32:04 UTC RE: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Fam. Hedegaard 2003-12-10 06:41:52 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads jmkasunich 2003-12-10 06:48:01 UTC Re: 80V Toroid & Ferrite Beads Jon Elson 2003-12-10 10:54:24 UTC Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads Carlos Guillermo 2003-12-10 12:10:43 UTC RE: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads