Battery charger circuits using constant current/constant...

Details Battery charger circuits using constant current/constant... Battery charger circuits using constant current/constant...

2004-06-02

2009-11-03

Assouad, Patrick J (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With detection of current or voltage amplitude

C320S148000

Reexamination Certificate

active

07612539

ABSTRACT:
Battery charging circuits can change from charging a battery in a constant current mode using an amplifier circuit output to control a voltage controlled current source to provide substantially constant current to the battery to charging the battery in a constant voltage mode using the amplifier circuit output to control the voltage controlled current source to provide a varied current to the battery. Related methods are disclosed.

REFERENCES:
patent: 4302713 (1981-11-01), Cutler et al.
patent: 5637981 (1997-06-01), Nagai et al.
patent: 5710506 (1998-01-01), Broell et al.
patent: 6522118 (2003-02-01), Barcelo et al.
patent: 24 55 393 (1976-05-01), None
patent: 0 948 075 (1999-10-01), None
patent: 1997-0013560 (1997-03-01), None
Office Action for German patent application No. 10 2004 029 482.8-45 completed on Jun. 28, 2005.
Notice to Submit a Response for Korean Patent Application No. 10-2003-0039648 mailed on Feb. 23, 2005.

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