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Old 16th March 2012, 02:55 AM   #1
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Default AnTek Transformers: Two separate secondary windings?

Hello,

Does anyone know if AnTek transformers can be used with each secondary winding being used separately. A lot of manufacturers I see say that they either have to be in series or parallel...

I do not see any mention of this on the AnTek datasheets. Do you reckon I could use each secondary winding individually?

I do NOT want to use it as a center tap transformer.

Thanks.
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Old 16th March 2012, 03:02 AM   #2
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Yes you can.
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Old 16th March 2012, 03:06 AM   #3
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Thank you Nigel.
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Old 16th March 2012, 03:52 AM   #4
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Normally, that recommendation is to ensure the user does not attempt to pull full VA out of 1/2 the primary or 1/2 the secondary windings. The core can handle it, but the individual winding likely cannot (or at least will have much poorer regulation than using both). So to be on the safe side, only load each winding to 1/2 of the total VA. You can use both secondary windings individually, but each winding runs at 1/2VA.
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Old 17th March 2012, 05:20 AM   #5
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Thanks. So for example...

Antek - AN-1212

This would be 12v-1 @ 2.1A and 12v-2 @ 2.1A?
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Old 17th March 2012, 05:50 AM   #6
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No, that's a 100 VA unit, so you can pull 12V-4A out of each winding simultaneously. 12*4=48 VA on each, which is 1/2 the total VA rating of the transformer. The caution is not to try and pull 8A out of one secondary winding, which the copper may not be rated for.

I see in the data sheet they specifically say the copper is oversized, so you probably do have some overload flexibility, but just be aware of the principle.
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Old 17th March 2012, 03:00 PM   #7
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Oh I see. Sorry for my ignorance. Well that's good. These transformers are quite cheap actually...

Thanks.
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