Battery health monitor

Details Battery health monitor Battery health monitor

2005-01-28

2009-06-30

Berhane, Adolf (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S128000, C320S136000, C320S145000, C324S426000

Reexamination Certificate

active

07554294

ABSTRACT:
A battery health monitor (BHM) that operates as a battery-mountable full-spectrum alternating current (ac) impedance meter that facilitates monitoring a state-of-charge and a state-of-health of a battery. The BHM is used for monitoring one or more electrical parameters, e.g., impedance, of a battery. The BHM includes: a current sink coupled to the first terminal and configured to sink therefrom an oscillatory current so as to cause the battery to produce at a first terminal thereof an oscillatory voltage equal to or less than a dc operating voltage of the battery that would be present at the first terminal in the absence of the oscillatory current; and a voltage sensor configured to sense the oscillatory voltage at the first terminal.

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