Battery protection circuitry for limiting charging parameters of

Details Battery protection circuitry for limiting charging parameters of Battery protection circuitry for limiting charging parameters of

1996-03-11

1997-12-30

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 35, H01M 1046

Patent

active

057034710

ABSTRACT:
In an arrangement for charging a battery in a battery plant, a resistive network is situated in the charging path of a battery being charged to guarantee a minimum total resistance of the added resistance and the battery's internal resistance regardless of the thermal effect of reducing the battery's internal resistance. A diode path bypasses the resistive network during discharging of the battery to reduce power dissipation. Charging current is controlled in response to a temperature of a heat sink on which the resistive network is mounted. Ambient temperature is used as a control or in another arrangement as a controlling factor in controlling charging current. Battery temperature may also be used as a control or in another arrangement as a controlling factor in controlling charging current.

REFERENCES:
patent: 3852652 (1974-12-01), Jasinski
patent: 3895283 (1975-07-01), Peterson
patent: 4562398 (1985-12-01), Kotlarewsky
patent: 5204611 (1993-04-01), Nor et al.
patent: 5214370 (1993-05-01), Harm et al.
patent: 5241259 (1993-08-01), Patino et al.
Looney, Chesley H. Jr., Electronic Design, "Schottky diodes rectify efficiently in a bicycle-lighting system," Circle No. 313, Jul. 5, 1997.

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