Hi Forrest,

For current, I=B4m using the Allegro Hall effect current sensors.
I=B4m using the ACS series, for - 50 to + 50 A.
The output is 0-5V with 0 A at 2.5V.
 =


Best Regards,

Rubens


At 09:46 13/6/2007, you wrote:
>I've been working on trying to design a circuit which will allow me to =

>monitor state-of-charge and charge/discharge current for solar sites.  =

>I'd love to use the onboard ADC on a typical PIC to keep the cost down, =

>but this isn't necessarily 100% a requirement.
>
>Array voltage is easy.. Just attach to ADC through some precision =

>resistors and away you go.   Current not so much, since I will be using =

>a shunt to get the current information (unless there's an easier way to =

>measure up to tens of amps DC).  The basic configuration would be simply =

>to measure the drop across one shunt, although it would be nice to be =

>able to do more than one (I.E. one for the charge path and one for the =

>discharge path, or perhaps one for solar in and one for wind in and one =

>for load out).  =

>
>If I require the shunt on the neutral side, I can then measure anything =

>positive - but the negative swing is an issue.  If the shunt is on the =

>high side, then I have an issue with the high side rail.
>
>How do people typically measure + and - voltages which come off of the =

>DCA shunt?
>
>-forrest
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