Power supply switch apparatus
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United States of America Patent
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Dec 12, 2017
Issued Date -
N/A
app pub date -
Apr 10, 2015
filing date -
Dec 12, 2014
priority date (Note) -
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Abstract
A power supply switch apparatus includes a first interface, a switch circuit, and a power supply circuit. The first interface includes a first control signal output terminal, a second control signal output terminal, and a third control signal output terminal. Each of the first control signal output terminal, the second control signal output terminal, and the third control signal output terminal outputs a control signal according to an electronic device inserted in the first interface. The switch circuit receives the control signals and outputs a power supply signal accordingly. The power supply circuit receives the power supply signal, and provides a first direct current (DC) voltage or a second DC voltage to the electronic device according to the power supply signal.
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