Charger Communication by Load Modulation
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United States of America Patent
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Issued Date -
Jun 29, 2017
app pub date -
Dec 28, 2015
filing date -
Dec 28, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A method and circuit that allows a charger port to source a slow charging voltage and current for one type of portable device and an adjustable voltage and current for a second type of portable device. The second type of portable device communicates with the charger port to establish a voltage and current that the portable device is capable of accepting. The portable device communicates with a charger port by load modulation structured for establishing a communications protocol for communicating a voltage and current level acceptable to the portable device.
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