Power circuit

Details Power circuit Power circuit

1998-03-25

1999-11-23

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With detection of current or voltage amplitude

320164, H02J 710

Patent

active

059906650

ABSTRACT:
A power circuit for a device having a secondary battery receives commercial electric power supplied externally and supplies electric power to a target in the device and to the secondary battery. The power circuit includes a measuring circuit and a current control circuit. The measuring circuit measures power consumption of the target circuit in the device. The current control circuit controls a charging current to the secondary battery so that the power consumption and the charging current have a negative correlation based on a measurement result of the measuring circuit.

REFERENCES:
patent: 3919618 (1975-11-01), Coleman et al.
patent: 4031450 (1977-06-01), Hammel et al.
patent: 5576612 (1996-11-01), Garrett et al.

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