🚀 go-pugleaf

We manufacture EL Lamps, typically in larger lamps drive voltages are
400-800 Hz @ 120VAC. The light output is directly correlated to the freq,
and yes - higher freqs do change the colour. Chipset inverter are available
"Scipex" I think.

Nigel Davies
nigel@NOSPmarkit.com.au


"Branko JUSTIC" <brankos@bigpond.com> wrote in message
news:GtUW6.65800$hV3.119168@newsfeeds.bigpond.com...
> I have had some experience with these inverters...we used to sell a potted
> inverters that were intended for this purpose..Yes it did produce an
audible
> frequency I would say in the order of  hundreds of Hz., I remember that
the
> O/C voltage was in the order of 1KV, you could get a 4' fluorescent tube
to
> ionize when connected to this inverter! There  was a project published a
> project in EA (since Eaten up - RIP) based on this inverter. Seems like a
> long time ago.  However with its normal load the voltage was much less
than
> 1KV, I can remember trying to light a display from 240V, probably with a
> series resistor, but the colour was different. Therefore the colour is
> somewhat depende on frequency. Some of the latest inverters for these
> displays dont employ a traditional transformer, they use a piezo device, a
> kind of a "solid state transformer"?, does noit have any windings! or
core.
> Hope this helps a little..
>
> "DaveC" <anon@example.net> wrote in message
> news:01HW.B74CC7DE00299D370473BAC0@news.dnai.com...
> > What is the drive voltage for the electro-luminescence background light
> for
> > the LCD display in a Casio watch? Is it simply battery voltage? Or does
it
> > require some kind of a/c signal?
> >
> > Seeking just general knowledge, not specific voltage values, etc.
> > --
> > Note that my return address is corrupted in an attempt to reduce spam.
If
> you
> > choose to e-mail me, please correct my address as described below.
> >
> > Thanks,
> > Dave
> > --
> > Dave Carpenter
> > Sound Logic
> > voicebox@NOdnai.com
> >
> > Remove "NO" to reply via e-mail
> >
>
>