Battery charger

Details Battery charger Battery charger

2005-07-19

2005-07-19

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

06919709

ABSTRACT:
A battery charger has a particularly advantageous application in the field of mobile radio terminal batteries. The charger generates an output voltage and an output current for charging a battery and includes a first regulator, a second regulator for regulating the output voltage to a predetermined value, a detector for detecting the output current, and an activation system which assumes at least two states. In a first state it activates the first regulator when the detector detects a negative or positive output current, and in a second state it activates the second regulator when the detector means detect a substantially zero output current.

REFERENCES:
patent: 5146395 (1992-09-01), McKie
patent: 5270636 (1993-12-01), Lafferty
patent: 5982151 (1999-11-01), Nagai et al.
patent: 5994875 (1999-11-01), Lee
patent: 0 856 931 (1998-08-01), None

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