Battery isolator

Details Battery isolator Battery isolator

1976-03-22

1977-04-12

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 13, 320 40, 323 15, 307 48, 307 86, H02J 700, H02J 332

Patent

active

040177793

ABSTRACT:
First and second batteries each connected in parallel with a load and a battery isolator connected between the first battery and the second battery and the load including a series pass transistor connected in series with the first battery and the load and circuitry for comparing the voltage across the load to the voltage across the first battery and turning off the series pass transistor when the voltage of the first battery drops below the voltage at the load plus a predetermined offset voltage, which offset voltage is developed by the battery isolator. The battery isolator operates like a diode isolation circuit having a near perfect diode therein.

REFERENCES:
patent: 2309054 (1943-01-01), Fell
patent: 3445746 (1969-05-01), Delatorre
patent: 3487229 (1969-12-01), Krausz
patent: 3620220 (1971-11-01), Murphy, Jr.

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