Soft transition from constant-current to a constant-voltage...

Details Soft transition from constant-current to a constant-voltage... Soft transition from constant-current to a constant-voltage...

2007-02-22

2010-02-02

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Diverse charging or discharging rates for plural batteries

Reexamination Certificate

active

07656121

ABSTRACT:
A system and method for charging a battery. In one embodiment, the system includes a charging circuit that charges the battery with a constant current during a first phase and charges the battery with a constant voltage during a second phase. The system also includes a control circuit for minimizing glitches when the charging transitions from the first phase to the second phase. According to the system and method disclosed herein, a battery may be charged in a controlled and reliable manner.

REFERENCES:
patent: 3114055 (1963-12-01), Kalfaian
patent: 4647834 (1987-03-01), Castleman
patent: 5304917 (1994-04-01), Somerville
patent: 5637981 (1997-06-01), Nagai et al.
patent: 6570372 (2003-05-01), Barcelo et al.
patent: 7030591 (2006-04-01), Stellberger
patent: 2006/0113966 (2006-06-01), Chen
patent: 1049229 (2000-11-01), None
patent: 1049230 (2000-11-01), None
patent: 2006-204021 (2006-08-01), None
patent: WO-2008103465 (2008-08-01), None
Lima et al., A Novel Universal Battery Charger for NiCd, NiMH, Li-Ion and Li-Polymer, 2003, pp. 209-212, 0-7803-8108-4/03.
“International Application Serial No. PCT/US2008/002385, International Search Report and Written Opinion mailed on Jul. 24, 2008”, 12 pages.

Affiliated with

Also associated with

Rating

Soft transition from constant-current to a constant-voltage... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Soft transition from constant-current to a constant-voltage..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft transition from constant-current to a constant-voltage... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4232346