nebriancent
100 W
just wanted to run this past you guys to see if there is anything actually wrong with this idea
the main reasons i wanted to mod the shunt via a voltage divider is so that my DPCA wont need a bulky stand alone shunt to read battery current and i thought it might be nice to have it adjustable so if i get a (oops that's running a little warm) i can dial it down easily unlike (with destructive shunt mods) soldering them up this shouldn't change the shunts value by a easily measurable amount
all voltages and shunt values are based on my controller but the resistor and pot values for voltage divider should allow any controller currently spiting out 40 amps to go to 99 amps and or multiply battery current on any controller by a factor of 2.5r
for a smaller gain of 2x battery current replace resistor 1 with 1k
and yes i know that the resistance value for resistor one as not standard .... i guess one could us another 1k pot for that aswell and dial it in for that resistance
View attachment New Bitmap Image.bmp
the main reasons i wanted to mod the shunt via a voltage divider is so that my DPCA wont need a bulky stand alone shunt to read battery current and i thought it might be nice to have it adjustable so if i get a (oops that's running a little warm) i can dial it down easily unlike (with destructive shunt mods) soldering them up this shouldn't change the shunts value by a easily measurable amount
all voltages and shunt values are based on my controller but the resistor and pot values for voltage divider should allow any controller currently spiting out 40 amps to go to 99 amps and or multiply battery current on any controller by a factor of 2.5r
for a smaller gain of 2x battery current replace resistor 1 with 1k
and yes i know that the resistance value for resistor one as not standard .... i guess one could us another 1k pot for that aswell and dial it in for that resistance
View attachment New Bitmap Image.bmp