Charging circuit and charger using the same

Details Charging circuit and charger using the same Charging circuit and charger using the same

2004-06-10

2009-10-20

Ullah, Akm E (Department: 2838)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With generator charging source

C320S125000, C320S137000, C320S138000

Reexamination Certificate

active

07605563

ABSTRACT:
A charging circuit includes a generator, a step-down circuit for reducing an output voltage of the generator to a predetermined voltage, a current controller for controlling a charging current that is supplied from the step-down circuit to a secondary battery, based on an amount of power generated by the generator, a mode selector for selecting charging modes, and a monitor for monitoring an amount of stored electricity. The step-down circuit receives an output of the generator, in charging, at a high voltage and a small current and is used to charge the battery at a low voltage and a large current.

REFERENCES:
patent: 3962621 (1976-06-01), Raver
patent: 5694025 (1997-12-01), Oglesbee et al.
patent: 6462507 (2002-10-01), Fisher, Jr.
patent: 2003/0042741 (2003-03-01), Hartman et al.
patent: 55-092547 (1980-07-01), None
patent: 9-331637 (1997-12-01), None
patent: 10-210673 (1998-08-01), None
patent: 11-185828 (1999-07-01), None
patent: 2003-009596 (2003-01-01), None
Japanese Office Action issued on Jul. 7, 2008 in connection with Japanese Application No. 2003-172481 (3 pages).

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