Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Patent
1997-12-12
1999-11-02
Tso, Edward H.
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
320132, H01M 1046
Patent
active
059777494
ABSTRACT:
A battery recharging circuit capable of operating stably against a variation of a supply voltage. The battery recharging circuit includes a voltage source; an AC-to-DC converter for converting an AC supply voltage from the voltage source into a DC supply voltage, to generate a charging voltage; a voltage sensor for comparing the charging voltage with a reference voltage to generate a voltage control signal when the charging voltage is equal to or higher than the reference voltage; a current sensor for comparing a charging current with a reference current to generate a current control signal when the charging current reaches the reference current; and controller including a switching element connected between the voltage source and the AC-to-DC converter, to connect and disconnect a power path between the voltage source and the AC-to-DC converter so as to maintain the constant charging voltage.
REFERENCES:
patent: 3586955 (1971-06-01), Kisiel
patent: 3688177 (1972-08-01), Reeves et al.
patent: 4649469 (1987-03-01), Shono
patent: 4654573 (1987-03-01), Rough et al.
patent: 5254932 (1993-10-01), Bittar et al.
Bushnell Esq. Robert E.
Samsung Electronics Co,. Ltd.
Tso Edward H.
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