On Wed, 20 Feb 2008 13:04:52 -0800 (PST), Mark
wrote:

On Feb 2, 7:47*am, Daniele Fua wrote:
There are on the
market isolation transformers that use a switching device: a relatively
complex electronic way to obtain the same average power by switching a
highest power on/off at high frequency.

An isolation tranformer that is based on high frequency switching
electronics? Aren't isolation transformers basically 1:1 copper
windings on an iron core, potted in an epozy sand mix for thermal
mass?

Please point me to an example of an active electronics (lightweight)
marine isolation transformer.

Here's one:

http://www.mastervolt.com/en/124/world's_first_switch-mode_isolation_transformer.html

It may not cost enough to qualify for "marine status" but just double
the price and it might work.

You can do a Yahoo search on switch mode isolation transformer and see
what else comes up.

Chuck

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