Battery charger with a timed high-current stage

Details Battery charger with a timed high-current stage Battery charger with a timed high-current stage

2005-08-16

2005-08-16

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Multi-rate charging

Reexamination Certificate

active

06930469

ABSTRACT:
A battery charger includes a supply voltage unit supplying a power supply voltage, a constant current generator receiving the power supply voltage and outputting a substantially constant current, and a timer whose output is coupled to the constant current generator. The timer outputs the timer output in response to a transition in the power supply voltage. The supply voltage unit changes a magnitude of the power supply voltage in response to the timer output so that the substantially constant current is changed from a first current level to a second current level.

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