Dual battery switch circuit

Details Dual battery switch circuit Dual battery switch circuit

1992-07-21

1994-05-31

Springer, David B.

Chemistry: electrical current producing apparatus, product, and

Having diverse cells or diverse removable cells in a support...

429 62, H01M 1004

Patent

active

053168682

ABSTRACT:
A dual-battery switch circuit associated with a load is provided. The switch circuit includes a primary battery, a secondary battery, a circuit disposed to apply energy from the primary battery to the load, and a controller which disposed to sense attempts to apply energy to the load. The controller is configured to couple the secondary battery to the primary battery with respect to the load when a predetermined number of attempts to apply energy to the load occur within a predetermined time period after a first attempt. Alternatively, a controller is provided which couples the secondary battery to the primary battery with respect to the load when an attempt is made to apply energy to the load and the temperature is below a predetermined level.

REFERENCES:
patent: 4572878 (1962-04-01), Daugherty
patent: 5002840 (1991-03-01), Klebenow et al.
patent: 5079716 (1992-01-01), Lenhardt et al.
patent: 5154985 (1992-10-01), Tanaka
patent: 5162164 (1992-11-01), Dougherty
patent: 5215834 (1993-06-01), Reher et al.

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