Connect/disconnect circuit for a reserve battery and method of o

Details Connect/disconnect circuit for a reserve battery and method of o Connect/disconnect circuit for a reserve battery and method of o

1998-02-27

1999-10-19

Nguyen, Matthew

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 66, H02J 700

Patent

active

059694360

ABSTRACT:
For use with a reserve battery couplable to a source of electrical power, a battery connect/disconnect circuit, including: (1) a switching subcircuit comprising a series-coupled controllable switch and diode and connected in electrical series with the reserve battery, the diode reverse-biased with respect the source of electrical power, (2) a contactor coupled in electrical parallel with the switching subcircuit and (3) a control circuit, coupled to the switching subcircuit and the contactor, that selectively closes the contactor to couple the reserve battery to the source of electrical power to charge the reserve battery.

REFERENCES:
patent: 5528149 (1996-06-01), Chen
patent: 5737204 (1998-04-01), Brown
patent: 5872445 (1999-02-01), Ozawa et al.
patent: 5892298 (1999-04-01), Levasseur
Publication entitled "A New Concept: Intermittent Charging of Lead Acid Batteries in Telecommunication Systems" by D.P. Reid and I. Glasa; May 1984 IEEE; pp. 67-71.
Byrne, et al., U.S. Application No. 08/937,845, filed on Sep. 25, 1997, entitled "Line-Replaceable Battery Disconnect Module and Method of Manufacture Thereof;".
Chalsani, et al, U.S. Application No. 08/950,642, filed Oct. 15, 1997, entitled Mode Selection Circuit for a Battery and a Method of Operation Thereof.
Don Reid, Nick Tullius and Ivan Glasa, "Guidelines For Lead-Acid Battery Telecommunications Applications," Aug. 1992 IEEE, pp. 407-412.

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