Multi-current battery charger circuit and method therefor

Details Multi-current battery charger circuit and method therefor Multi-current battery charger circuit and method therefor

2005-08-11

2008-11-25

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07456611

ABSTRACT:
In one embodiment, a battery charger is configured to provide a normal charge current during a first time period and to supply a maintenance current after the first time period expires.

REFERENCES:
patent: 6172480 (2001-01-01), Vandelac
patent: 6605978 (2003-08-01), Halamik et al.
patent: 2001/0001533 (2001-05-01), Stuck et al.
Data Sheet, “MC33340, MC33342 Battery Fast Charge Controllers,” Aug. 2004—Rev. 6, Semiconductor Components Industries, LLC., 14 pages.
Data Sheet, “NCP1835 Integrated Li-Ion Charger,” Feb. 2005—Rev. 2, Semiconductor Components Industries, LLC, 16 pages.
Web Publication, “Switching Regulator saves power for NiMH Battery Charger,” Jason Hansen et al,, PlanetAnalog, Oct. 23, 2000, http://www.planetanalog.com/.
“Switching Regulator Charges NiMH Batteries”, Jason Hansen et al, Design Ideas, edn Magazine, www.ednmag.com, Dec. 21, 2000, pp. 95-96.
“Energy-Saving Chargers for Cordless Appliances”, Charles E. Mullett, presented at the California Energy Commission Hearing on Oct. 13, 2004, in San Francisco.

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