core for inverter transformer

ruleworld · 2006-09-25T03:44:03+00:00

I want to make a inverter transformer of 400w. in my local store ifound many kind cores, all from old transformer mainly from shipbreakings. some are heavy others not so heavy. some have black paintson it, some are gray, silver golden etc. I want to know which type isbetter for inverter transformer.and the transformers primary 12-0-12v should have bifilar winding.should i wind the secondary 220v loop over the primary? or should iwind them side by side.thanks

Sep 25, 2006 24 Replies

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bill.sloman 19 years ago

Phil happens to be right for once - you aren't capable of thinking straight.

Of course, I might be prejudiced - Phil is Australain, and so am I, so insulting him on the basis of his nationality is also insulting me.

There are - of course - many other, even more valid reasons to insult Phil, and taking offense at his nationality is tactically unsound. Not that insulting him on other grounds does much good either - there doesn't seem to be any effective way of getting the prick to modify his anti-social behaviour. He still knows regular transformers pretty well.

Incidentally don't insult him on the basis of his service provider either - TPG is cheap, if nasty, and I use them myself when I am in Australia.

Bill Sloman, Nijmegen

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martin griffith 19 years ago

Not really. The fine people of Oz are decended from "failed" criminals, ie they got caught and deported from the UK.

The successful criminals, who were not caught, stayed in the UK, and prospered

martin

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bill.sloman 19 years ago

Some Australians are descended from transportees, but the pedestrian fact of the matter is that most Australians are descended from perfectly ordinary immigrants who came out after transportation had ceased - as mine did. My wife's first Australain ancestor came out in

1834, but as a practicing lawyer (so he had never got caught).

-- Bill Sloman, Nijmegen

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Frithiof Andreas Jensen 19 years ago

"Johnny Boy" skrev i en meddelelse news:45179445$0$26344$ snipped-for-privacy@news.optusnet.com.au...

Hmph - I think his people skills was right on the mark this time.

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Homer J Simpson 19 years ago

Most inverters are square wave or use some circuitry to modify that. You could add a choke and capacitors to smooth it off some. If the 555 output is not symmetrical you could divide it by two first.

-- _____ _ _ |_ _| | | | | | | __ _ _ __ ___ | |__| | ___ _ __ ___ ___ _ __ | | / _` | '_ ` _ \\ | __ |/ _ \\| '_ ` _ \\ / _ \\ '__| _| |_ | (_| | | | | | | | | | | (_) | | | | | | __/ | |_____| \\__,_|_| |_| |_| |_| |_|\\___/|_| |_| |_|\\___|_| __ ____ / _| | _ \\ ___ | |_ | |_) | ___ _ __ __ _ / _ \\| _| | _ < / _ \\| '__/ _` | | (_) | | | |_) | (_) | | | (_| |_ \\___/|_| |____/ \\___/|_| \\__, (_) __/ | |___/

...

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