Charge/discharge control circuit and secondary battery

Details Charge/discharge control circuit and secondary battery Charge/discharge control circuit and secondary battery

2004-05-27

2010-11-09

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S136000

Reissue Patent

active

RE041915

ABSTRACT:
A charge/discharge control circuit for controlling charging and discharging of a secondary battery that includes a cell. The charge/discharge control circuit includes an overdischarge detection circuit for detecting an overdischarged state of the battery, and an overcharge detection circuit for detecting an overcharged state of the battery. A discharge control switch is deactivated in the overdischarged state. A first charge control switch is deactivated in the overdischarged state. A second charge control switch is activated in the overdischarged state. A current-limiting circuit is connected in series with the second charge control switch for limiting the charging current when charging is performed.

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