Hi Warren, Mal, LF,
When answering to Mal about the topic, i also thought about removing
the rectifier, first. But then i thought this could be problematic due
to the wide range of frequencies which can go down to nearly DC. A
mains transformer could become saturated then, or needs very high
numbers of turns on both sides.
I think the best is to use a bridge of 6 FETs, e.g. IRFP4368
and a 3 phase ferrite transformer and build a suitable supply with an
output voltage at say 200 DC. You can then distribute the power to the
shack with a thin wire and us e.g. a simple normal SMPS for mains
applications (like a standard 13.8V DC supply from the amateur store)
and feed it with that 200V DC voltage.
Ignore the savety aspect ;-)
73, Stefan/DK7FC
Am 11.06.2013 17:23, schrieb Warren Ziegler:
Stefan, Mal,
Very interesting project !
Automotive alternators are actually 3-phase ac
alternators with a bridge rectifier to get d.c.
If you could remove the bridge you could feed the A.C.
into a step-up transformer for transmission at higher voltage/lower
current.
73 Warren K2ORS
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