AC-DC converter with adjustable output
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United States of America Patent
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Dec 27, 2016
Grant Date -
Jun 4, 2015
app pub date -
Dec 3, 2013
filing date -
Dec 3, 2013
priority date (Note) -
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Abstract
An electrical adapter can include a rectifying circuit configured to receive an AC power input, a power factor corrector (PFC) circuit coupled with an output of the rectifying circuit, and a capacitive component coupled with an output of the PFC circuit. The electrical adapter can further include a DC-DC converter circuit coupled with an output of the capacitive component and configured to provide a power output of the electrical adapter, and an impedance-measuring circuit coupled with the power output and configured to measure impedance of a cable connected to the power output. The DC-DC converter circuit can be configured to adjust power of the power output based on the measured impedance.
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