Battery pack for a portable electric apparatus and a method for

Details Battery pack for a portable electric apparatus and a method for Battery pack for a portable electric apparatus and a method for

1997-11-20

2000-02-15

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Means to identify cell or battery type

320134, H01M 1046, H01M 1044

Patent

active

06025694&

ABSTRACT:
A battery pack for a portable electric apparatus has one or more than one battery cells and terminals for electric connection to the apparatus. The battery pack has a first terminal for receiving charging current from the apparatus, a second terminal for feeding supply current to the apparatus, and a third terminal for establishing a zero or ground line common to the apparatus and the battery pack. Furthermore, the battery pack has a first voltage converter arranged between the first terminal and the battery cell(s), and a second voltage converter arranged between the second terminal and the battery cell(s).

REFERENCES:
patent: 4684870 (1987-08-01), George et al.
patent: 4885523 (1989-12-01), Koenck
patent: 4965738 (1990-10-01), Bauer et al.
patent: 5534765 (1996-07-01), Kreisinger et al.

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