Battery charger having microcomputer for adjusting charging curr

Details Battery charger having microcomputer for adjusting charging curr Battery charger having microcomputer for adjusting charging curr

1995-04-13

1997-11-11

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 49, H01M 1046

Patent

active

056868170

ABSTRACT:
A battery charger includes a microcomputer operable to receive an input value corresponding to a value of charging current. A thyristor has the gate connected to an output port of the microcomputer. The microcomputer operable to adjust the firing angle of the thyristor for controlling the value of the charging current through a phase control of the charging current in response to the input value. A capacitor has a first electrode connected to the gate of the thyristor. A transistor has the collector connected to a second electrode of the capacitor, the base connected to the output port of the microcomputer, and the emitter connected to a power source voltage for the microcomputer.

REFERENCES:
patent: 4593348 (1986-06-01), Tawesmeier
patent: 4779050 (1988-10-01), Ohnari
patent: 5453677 (1995-09-01), Sakoh et al.
patent: 5483142 (1996-01-01), Skibinski et al.

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