[chbot] .5 offset voltage

[Mark Atherton]

Hi Wallace,

So the transducer connects to the 0.1999mV display and nowhere else ?

What display range do you want (for the input range of 0.5 to 4.5V) ?

Is the unit battery powered with any shared grounds ?

Tell me more about the transducer.

Mark


At 05:08 p.m. 18/07/2011, you wrote:
>Hi Mark
>
>I have a digital display from Jaycar. It runs on 5 volts. The input 
>is 0-2 volts. The scaling is no problem. I have only one power 
>supply. I have used a LM7805 for the display and probably a second 
>one for the transducer. I do however need to float the display's 
>ground 0.5 volts above the transducer's ground. It probably needs to 
>be adjustable to clear the actual offset from the transducer. Most 
>voltage regulators start at 1.2 volts so I'm stuck for a simple solution.
>
>Cheers Wallace
>
>
>
>
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