Charging circuit for charging a rechargeable battery and for pre

Details Charging circuit for charging a rechargeable battery and for pre Charging circuit for charging a rechargeable battery and for pre

1999-01-25

2000-05-16

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320136, H01M 1046

Patent

active

060641843

ABSTRACT:
A charging circuit is provided with a charge control switch connected in series with a rechargeable battery, and a current sensing circuit to determine whether or not current flows through the rechargeable battery. A charging control circuit is also included to determine a charge state of the rechargeable battery and to control operation of the charge control switch. Further an operation control circuit for allowing operation of the charging control circuit in response to current flow through the rechargeable battery determined by the current sensing circuit.

REFERENCES:
patent: 5539299 (1996-07-01), Fernandez et al.
patent: 5710505 (1998-01-01), Patino
patent: 5783322 (1998-07-01), Nagai et al.
patent: 5789900 (1998-08-01), Hesegawa et al.

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