Smart battery protector with impedance compensation

Details Smart battery protector with impedance compensation Smart battery protector with impedance compensation

2008-05-09

2010-12-07

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S163000

Reexamination Certificate

active

07847519

ABSTRACT:
A battery protector with internal impedance compensation comprises: a logic circuit and delay module, an overcharge comparator, and an over-discharge comparator. The overcharge comparator has a positive terminal connected with a first adjustable reference signal and the over-discharge comparator has a negative terminal connected with a second adjustable reference signal and both of the other terminals of comparator are fed by the same partial voltage of the same voltage divider, which has two terminals, respectively, connected with the two electrodes of the battery. The first adjustable reference signal and the second adjustable reference are varied with the charging current or discharging current and the internal impedance of the battery.

REFERENCES:
patent: 5554919 (1996-09-01), Uchida
patent: 5789902 (1998-08-01), Abe et al.
patent: 5990663 (1999-11-01), Mukainakano
patent: 6194975 (2001-02-01), Leizerovich et al.
patent: 7498769 (2009-03-01), Potanin et al.

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