Battery Fuel Gauge Circuit

The tri state fuel gauge reads the learned battery information on the smbus and displays it on a multi colored led bar.

Battery fuel gauge circuit. A battery fuel gauge ic can predict how much longer under specific operating conditions the battery can continue to provide power. What makes our gauges so special. Figure 2 illustrates a tri state fuel gauge. Impedance track technology based fuel gauging.

The open circuit voltage algorithm of fuel gauge is easy to implement by mapping open circuit voltage to the soc look up table and using several points to fit the ocv curve. A battery fuel gauge also known as a battery gas gauge determines battery state of charge soc and state of health. The illustration shows a partially discharged battery of 50 soc with 20 empty and 30. The general definition of open circuit voltage is only if battery relaxed for approximately more than 30 minutes.

When the board is powered the user could connect a battery to be measured. The battery fuel gauge circuit includes an amplifier circuit a correction circuit a plurality of comparators and a multiplexer. Impedance track integrated circuit gas gauge solution for 1 series download datasheet. Patented gauging impedance track technology allows.

Inadequate battery life and unreliable battery soc reporting are some of the most common. The amplifier circuit can sense a discharge current flowing through a sense resistor and a variable temperature from the battery pack and generate a first and a second voltage signals which are corrected by the. 1 4 series li ion battery pack manager battery fuel gas gauge download datasheet.