Calibration of the battery device for a portable computer system

Details Calibration of the battery device for a portable computer system Calibration of the battery device for a portable computer system

1998-06-12

1999-10-05

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320131, 320130, 320114, 320DIG21, H02J 700

Patent

active

059630175

ABSTRACT:
A capacity calibration apparatus for the battery of a portable computer system is provided. The computer system includes a main board circuit, a processor unit, a display unit, a power-supply board circuit, a battery and a parallel port interface. The capacity calibration apparatus includes a standard parallel port interface and a control circuit. The standard parallel port interface is connected to the parallel port interface of the computer system. Via the parallel port interface, the computer system outputs at least one control signal to the capacity calibration apparatus. The capacity calibration apparatus selectively outputs the alternating current supply to the power-supply board circuit in order to proceed a charge/discharge procedure of a predetermined type such that the capacity value of the battery is initialized.

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patent: 5698961 (1997-12-01), Kutz et al.
patent: 5705910 (1998-01-01), Kito et al.
patent: 5793188 (1998-08-01), Cimbal et al.
patent: 5890780 (1999-04-01), Tomiyori

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