Hi,
I have a Li ion battery pack with a voltage output of 30 (discharged) - 42V (fully charged). On the other hand I have a level indicator which has four levels and works with an input voltage range of 0-12v. I am looking to design a simple circuit that would basically subtract 30v from the battery output so that I can feed it to the battery level indicator.
Would love to hear any suggestions.
I have a Li ion battery pack with a voltage output of 30 (discharged) - 42V (fully charged). On the other hand I have a level indicator which has four levels and works with an input voltage range of 0-12v. I am looking to design a simple circuit that would basically subtract 30v from the battery output so that I can feed it to the battery level indicator.
Would love to hear any suggestions.