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Flyback Transfomer - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


newbie
Post subject: flyback transfomer Posted: Fri Apr 07, 2006 10:59 am

Lieutenant

Joined: Fri Apr 07, 2006 7:24 am
Posts: 1
hello, could anybody tell me how to figure out the primary input pin(with approximate 1ohm coil inductance? how to find the polarity for 2 input pins as well..)and the secondary high voltage and ground pin for flyback transformer.. thanks


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fred47
Post subject: FlybackPosted: Mon Apr 10, 2006 7:55 pm

General


Joined: Wed Feb 22, 2006 3:51 pm
Posts: 104
Hi!

I assume you mean flyback transformer as used in a TV or computer monitor, not the kind of transformer used for (relatively) low-power switching power supplies. If I'm wrong, please correct!

There are several varieties of flyback transformer on the market. One kind has a terminal common to the primary and secondary, the other does not.

Often, the output is a separate socket or lead, with high voltage insulation - but not always.

To muddy the waters even further, many modern flybacks are actually integrated power supplies - commonly a voltage doubler or tripler is built in to the flyback itself.

So you need to be a bit more specific about what you need to know, and where you're starting from!

Good Luck,
Fred


Posted  11/12/2012

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