Circuit to protect Li-Ion and Li-Po batteries at the cell level.
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
KiCad
LTSpice
.gitignore
LICENSE.txt
Makefile
README.rst

README.rst

Li-Ion Battery Protection

The MIT License (MIT)

This is an electronics project to help protect Li-Ion batteries and the circuits they are used in. The circuit will work with two to four cells and protects the battery at the cell level. Any one cell that goes below the recomended level will cause the entire curcuit to shut down.

LTspice

Spice files for testing the circuit virtually.

Truth Table One: Battery Voltage Normal

U1/U3 Q1/Q2 U2/U4 Q3 Q4
HI LOW LOW HI LOW
N/A ON ON OFF ON

Truth Table Two: Battery Voltage Below Normal

U1/U3 Q1/Q2 U2/U4 Q3 Q4
LOW HI HI LOW HI
N/A OFF OFF ON OFF

KiCAD

KiCAD files of the schematic and PCB.

Feel free to contact me at: carl dot nobile at gmail.com