Re: fluorescent lamp operating voltage

On Mon, 20 Feb 2006 09:36:30 -0500 Victor Roberts <xxx@xxxxxxxxxxxxxxxxxxxxx> wrote:

| I agree that it is not possible to design a perfect
| transformer, that is, one that has no leakage inductance at
| all. However, unless a transformer is designed to have a
| specific amount of leakage inductance or it is just a
| terrible design, the inherent "parasitic" leakage inductance
| is not enough to keep the transformer from overheating if
| the output is shorted or to provide any reasonable current
| limiting action for the load. We have been over this ground
| before - see below.

[...]

| The leakage inductance does not dissipate any power. The
| power is dissipated by the resistance of the windings and
| the resistive losses in the core material. Yes, A certain
| amount of loss is unavoidable, but it is not correct to
| automatically equate leakage inductance with loss in a
| transformer.

[...]

| A transformer with leakage inductance does not waste any
| more power than the equivalent tightly-coupled transformer
| and series inductor. In fact, in a well designed transformer
| it should have lower power loss, partially because there is
| one less winding.

I'm not opposed to using a transformer of this kind of design.
I'm just exploring all options, including what I first envisioned,
to try to understand all the issues.

The PDF file would not load in either Acrobat read version 4 or 5.
I'm still having trouble getting version 7 to run. I'll try another
way to access the patent records.

If there is a patent on this, I guess I won't be using it. If I
do any of this, I'd just do a simple transformer and simple ballast.

--
-----------------------------------------------------------------------------
| Phil Howard KA9WGN | http://linuxhomepage.com/ http://ham.org/ |
| (first name) at ipal.net | http://phil.ipal.org/ http://ka9wgn.ham.org/ |
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.

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