POWER SUPPLY DEVICE AND SYSTEM AND METHOD FOR PROVIDING POWER
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United States of America Patent
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Issued Date -
Feb 9, 2017
app pub date -
Aug 3, 2015
filing date -
Aug 3, 2015
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Abstract
A power supply device adapted to being coupled to an electronic apparatus through an input interface is provided. The power supply device includes a first-polarity voltage line, a second-polarity voltage line, and an output interface. The first-polarity voltage line and the second-polarity voltage line are disconnected with each other. The output interface is configured to supply a power to the electronic apparatus through the input interface. When the output interface is externally approached or forced by the input interface, the output interface chooses one of the first-polarity voltage line and the second-polarity voltage line as a chosen voltage line for the power. Multiple power supply devices may be arranged to be a power supply system.
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