Multiport USB charger
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United States of America Patent
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Nov 15, 2016
Grant Date -
Feb 5, 2015
app pub date -
May 12, 2014
filing date -
Jul 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A universal serial bus charging device for charging connected electronic devices is presented. The universal serial bus includes a microprocessor and a power supply configured to output a total charging current. The universal serial bus charging device further includes a plurality of low voltage ports in communication with the microprocessor and electrically coupled to the power supply. Each of the plurality of low voltage ports are capable of connecting with the electronic devices and providing the electronic devices a device charging current. The microprocessor is configured to enumerate the connected electronic devices and communicate to each of the enumerated electronic devices the device charging current available through its respective low voltage port connection. The available device charging current for each enumerated electronic device is determined by the microprocessor as a function of a total charging current and the enumerated electronic devices.
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