Hi Wes,

Thanks for the info. I've looked on the pages you gave me and see that
all measures are made with a ground reference...

I will drop a mail to wd7s and ask some suggestions...

Thanks for the answer !

73, Patrick

Wes Stewart a écrit :

On Mon, 18 Apr 2005 15:19:14 +0200, Patrick wrote:


Hi all,

I started a new amplifier project, a 4CX1500B 2m amplifier.
Wanting to make it a bit more state of the art, i want to replace the
old meters by Led bars...
The simplest way to do that is to use a LM3914 bar display which can
measure voltages with a ground reference.

My design will use a cathode driven, DC grounded screen. So measures
must be make "floating" as the ref is the cathode .

How can i achieve this in a simple way ??


Without more thought on my part I can't say whether this will help,
but it sure won't hurt to look.

http://wd7s.home.att.net/ds-1.htm