Automatic switching arrangement for two batteries which are char

Details Automatic switching arrangement for two batteries which are char Automatic switching arrangement for two batteries which are char

1980-04-01

1981-10-27

Miller, J. D.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 16, 307 66, H02J 704

Patent

active

042976294

ABSTRACT:
The invention relates to an automatic switching arrangement for two batteries which are charged in parallel and discharged in series. The arrangement includes a control unit and a charging circuit; the control unit is a circuit which includes a transistor (T1), a resistor (R1) and a diode (D1) which is connected between two terminals of opposite polarities of the batteries (BT1) and (BT2), the transistor being blocked or conductive according to the direction of the voltage at the terminals of the diode; the transistor controls switching units (T2,T3) of the charging circuit. A switch (CT4, Th, CT11) can be disposed in series with the diode (D1). Application to stand-by batteries.

REFERENCES:
patent: 4114082 (1978-09-01), Scheidler
patent: 4139812 (1979-02-01), Huggins

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