Connecting multiple batteries to battery powered devices

Details Connecting multiple batteries to battery powered devices Connecting multiple batteries to battery powered devices

1995-09-27

1997-04-15

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 17, 320 39, 307 48, H01M 1044, H01M 1046

Patent

active

056213018

ABSTRACT:
A circuit for serially connecting multiple batteries to a battery-powered device such as a notebook computer or camcorder so that the device will serially charge or discharge the batteries. The device includes at least two controllable switch circuits for selectively connecting batteries to the battery-powered device, a power flow sensor for sensing power flow from the device to the selected battery or vice-versa, and a selector circuit for sequentially enabling the switch circuits to sequentially connect the batteries to the battery-powered device so that the batteries will sequentially charge or discharge.

REFERENCES:
patent: 4143417 (1979-03-01), Wald et al.
patent: 4323788 (1982-04-01), Smith
patent: 4903222 (1990-02-01), Carter et al.
patent: 4908523 (1990-03-01), Snowden et al.
patent: 5030128 (1991-07-01), Herron et al.
patent: 5477123 (1995-12-01), Allen et al.

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