Electricity: battery or capacitor charging or discharging – Battery or cell charging – With detection of current or voltage amplitude
Reexamination Certificate
2011-04-12
2011-04-12
Tso, Edward (Department: 2858)
Electricity: battery or capacitor charging or discharging
Battery or cell charging
With detection of current or voltage amplitude
C320S134000
Reexamination Certificate
active
07923972
ABSTRACT:
Exemplary systems and methods for charging a battery with a digital charge reduction loop are described herein. In some embodiments, a system comprises an exemplary digital charge reduction loop which comprises a circuit for determining a charge-current adjustment signal, a counter for generating a digital count value, and a digital-to-analog converter. The circuit for determining a charge-current adjustment signal may base the determination on a source voltage of an input source. The counter may generate a digital count value based on the charge-current adjustment signal. The digital-to-analog converter (DAC) may generate a DAC control signal based on the digital count value of the counter, the DAC control signal being representative of an amount of charge current to be used to charge a battery.
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Office Letter from Taiwan Intellectual Property Office for Taiwan Patent Application No. 96139664 received on Jan. 7, 2011.
Brown David Alan
So John Sung Ko
Advanced Analogic Technologies, Inc.
Berhanu Samuel
Sheppard Mullin Richter & Hampton LLP
Tso Edward
LandOfFree
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