At 01:33 PM 5/18/2005 -0400, you wrote:
>Dear all:
>
>I would like to use an electroluminescent (EL) LCD
>because it boasts a very low current consumption (~2mA
>I'm not sure if this is AC).  However, its lighting
>power source requires AC100Vrms, 400Hz.  The
>application that I'm working on can only use a 9V
>battery and a 5V regulator.
>
>1) Is there some IC that can convert DC5V into
>AC100Vrms, 400Hz?

For a one-off you should probably just buy a compatible inverter
module unless you're planning a diversion into SMPS design.
Or use one with an LED backlight.

>2) The current probably will not be DC2mA will it?  If
>not, what might it be?

Probably similar order of magnitude to an LED backlight
these days, for similar brightness. It will be highly dependent
on the area of the LCD. Tens or scores of mA at 5V, I'd guess.

>Thanks in advance.
>
>Wallace Yang
>yangres2002@rogers.com
>new grad, U of T electrical engineering

Who was your thesis advisor?

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
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