Standby power supply

Details Standby power supply Standby power supply

1985-03-22

1987-11-03

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

320 13, H02J 700

Patent

active

047045426

ABSTRACT:
A standby power supply arrangement comprises a transistor with its emitter coupled to one pole of a standby battery and its collector coupled to a load. The transistor base is coupled to the other pole of the battery by way of a threshold device. When the battery voltage falls below a given limit, the threshold device no longer conducts, causing the transistor to cease to conduct power to the load.

REFERENCES:
patent: 2534542 (1950-12-01), Bower
patent: 3257603 (1966-06-01), Laube
patent: 3319074 (1967-05-01), Koch
patent: 3395288 (1968-07-01), Brimer
patent: 3573483 (1971-04-01), White
patent: 3710134 (1973-01-01), Guthart
patent: 3939359 (1976-02-01), Nehushtan et al.
patent: 4150302 (1979-04-01), Roche
patent: 4544910 (1985-10-01), Hoberman
patent: 4563628 (1986-01-01), Tietz et al.
patent: 4571531 (1986-02-01), Lin
Popular Electronics, "Hobby Scene: Remote Battery Cutoff" Jan. 1974.

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