Need changes in this Battery monitor circuit

[angy]

The battery monitor circuit shown in diagram works with a volatge difference of 2V.
i.e

At 27 V all led glows. At 25 V led 1 gets off .At 23 V led 2 gets off only led 1 remains off

I want to change the voltage difference from 2V to 1V
i.e at 27 V all led ON , At 26V led 1 gets off, At 25 led 2 gets off and so on.


What value in resistance should I change to get above desired results

 

[KlausST]

Hi

This is fairly simple.

The +IN nodes are the threshold levels.
They are connected via R2 and R3. These resistors give the difference voltage.

--> installing half the resistance gives (about) half the difference voltage.

Maybe you have to compensate the decreased resistances with an additional series resistance at R9. (To get the same total resistance as before)

Klaus