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Which dump load regulator | 15 comments (15 topical, editorial)

Re: Which dump load regulator (3.00 / 0) (#10)
by elvin1949 (elvin1949@yahoo.com) on Mon Feb 18th, 2008 at 12:21:54 AM MST
(User Info)

Owen
Check Ghurd's controller kit's. 12 dollars each i think. DavidHK uses them to trigger ssr's to dump
high power.
Might be worth a look.
later
Elvin

PS---nice boat

[ Parent ]

Re: Which dump load regulator (3.00 / 0) (#11)
by la7qz on Wed Feb 20th, 2008 at 12:59:07 PM MST
(User Info) http://home.no.net/naomij

Would you happen to have a link to this controller? Google didn't return anything sensible.

Owen
If you're not living on the edge, you're taking up too much space.
[ Parent ]

Re: Which dump load regulator (3.00 / 0) (#12)
by la7qz on Wed Feb 20th, 2008 at 01:14:56 PM MST
(User Info) http://home.no.net/naomij

Hi again

I found it, but that raised a new question.

I will be getting a 600W 12V heating element. So - recommendations for an N-fet gate suitable for dumping 600W (or preferably more) would be welcome. I have a couple of nice big heatsinks that would be perfect for the project.

Owen
If you're not living on the edge, you're taking up too much space.
[ Parent ]

Re: Which dump load regulator (3.00 / 0) (#13)
by ghurd on Wed Feb 20th, 2008 at 02:04:34 PM MST
(User Info)

I would consider an IGBT or SSR.
Proper planning and design would allow a bank of N-fets to be used on a single load, but it's not what I would do.

I would most probably use a Big bank of low resistance N-fets, with low ohm/high watt ballast resistors.
Partly because all that is here. But I have a lot of IGBTs here too.
That's just what I would do.

[ Parent ]

Re: Which dump load regulator (3.00 / 0) (#14)
by la7qz on Wed Feb 20th, 2008 at 04:42:27 PM MST
(User Info) http://home.no.net/naomij

Thanks for your reply Ghurd.

I'm very much a colour by numbers kind of guy when it comes to building electronic stuff, so I'm going to need just a little more help selecting the components. Recommendations of actual components and where to get them would be welcome.

Or...

I may actually have something suitable. I have the bones of a 150A battery charger here. This is where the two big heat sinks I mentioned came from. I have two components marked "NSC 07104G0D 0204", one sitting on each of the heat sinks. Can you (or anyone else) identify these and tell me whether they would be suitable? The charger was dead (toasted transformer), so it is of course possible that they are dead. How do I test them?

Owen

If you're not living on the edge, you're taking up too much space.
[ Parent ]

Re: Which dump load regulator (3.00 / 0) (#15)
by la7qz on Wed Feb 20th, 2008 at 05:16:12 PM MST
(User Info) http://home.no.net/naomij

Oops

Looks like it's "WSC 07104G0D 0204", not "NSC". It's a bit difficult to read because it's partly hidden by the heatsink.

Owen
If you're not living on the edge, you're taking up too much space.
[ Parent ]

Which dump load regulator | 15 comments (15 topical, 0 editorial)

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