Circuit for preventing overdischarge of rechargeable battery pac

Details Circuit for preventing overdischarge of rechargeable battery pac Circuit for preventing overdischarge of rechargeable battery pac

1994-09-16

1998-01-06

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 13, 320 15, H01M 1046

Patent

active

057059128

ABSTRACT:
A rechargable battery pack is constituted by not connecting all of the terminals of a plurality of secondary batteries but extracting them outside. A charging circuit is constituted by a dedicated charging circuit which comprises a constant-voltage circuit and a constant-current circuit for each of the rechargable batteries to charge each rechargable battery separately. A discharging circuit comprises, for each of the rechargable batteries, a controler for preventing an overdischarge and a worning portion for warning of an overdischarge.

REFERENCES:
patent: 4280097 (1981-07-01), Carey et al.
patent: 4303877 (1981-12-01), Meinhold
patent: 4823086 (1989-04-01), Whitmire et al.
patent: 4833459 (1989-05-01), Geuer et al.
patent: 5206578 (1993-04-01), Nor
patent: 5298821 (1994-03-01), Michel
patent: 5387857 (1995-02-01), Honda et al.
patent: 5422558 (1995-06-01), Stewart

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