POWER ADAPTER WITH PROPORTIONAL CURRENT SHARING AND MOBILE ELECTRONIC DEVICE HAVING THE SAME
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United States of America Patent
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Issued Date -
Oct 30, 2014
app pub date -
Apr 24, 2013
filing date -
Apr 24, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A power adapter with proportional current sharing is provided to supply power for a mobile electronic device. The power adapter includes a plurality of power modules. Each power module has a power unit, a current-sharing integrated circuit, and a shunt resistor. The power unit receives an external power source and provides an output power. The current-sharing integrated circuit is electrically connected to the power unit. The shunt resistor is electrically connected between a power output terminal of the power unit and the current-sharing integrated circuit. When the power modules are electrically connected in parallel to each other, each power units provides a connection signal to the mobile electronic device via the corresponding shunt resistor. In addition, the current-sharing integrated circuits are used to distribute output power of the corresponding power unit according to the required of the mobile electronic device.
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