The idea behind 400hz is:

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In Reply to: Transformer Questions posted by Dr_EICO on August 4, 2006 at 21:17:09:

Smaller windings and iron for the same VA in a 60hz unit. AFAIK, this was developed for aircraft where weight is a design criteria.
To take this further look at some of the new 1 mhz plus switching power supplies. The 3.3v and 5v secondaries are only a single turn or two.

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Follow Ups Full Thread

Topic - Transformer Questions - Dr_EICO 21:17:09 08/04/06 (4)

The idea behind 400hz is: - Gusser 09:58:13 08/07/06 (0)

No good for 60Hz...........nt - Jimmy 06:45:53 08/05/06 (0)

Re: Transformer Questions - Paul Barker 23:13:00 08/04/06 (1)

Re: Transformer Questions - Paul Barker 23:17:29 08/04/06 (0)

Follow Ups

The idea behind 400hz is: - Gusser 09:58:13 08/07/06 (0)

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