Intrinsically safe battery circuit

Details Intrinsically safe battery circuit Intrinsically safe battery circuit

1986-11-07

1988-06-07

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 35, 361 13, 361 93, 361101, H02J 700, H02H 902

Patent

active

047499346

ABSTRACT:
An intrinsically safe battery circuit for connection between a battery and a load, such as a hand held transceiver, referred to as "HT's". The circuit includes a minor current path through a switching transistor and a major current path through a SCR. The circuit is a hybrid circuit which includes an integrated circuit timer which provides a delay in establishing the major current path subsequent to the minor current path being established, and mounts on a small printed circuit board.

REFERENCES:
patent: 3967169 (1976-06-01), Ellenberger
patent: 4161773 (1979-07-01), Szpakowski
patent: 4271460 (1981-06-01), Baker
patent: 4438473 (1984-03-01), Cawley et al.
patent: 4555741 (1985-11-01), Masaki
patent: 4634936 (1987-01-01), Gentry et al.
patent: 4638396 (1987-01-01), Mukli et al.

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