Inrush current prevention circuit, inrush current prevention method, and computer readable medium
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United States of America Patent
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Jul 16, 2019
Grant Date -
Jun 21, 2018
app pub date -
Dec 8, 2017
filing date -
Dec 19, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An inrush current prevention circuit includes: a voltage detection unit configured to detect a value of an input voltage applied by a power supply; a current detection unit configured to detect a value of an input current input from the power supply; a current limiting element configured to limit the input current; a voltage drop detection unit configured to detect a voltage drop in the power supply resulting from inrush currents using a detection voltage value detected by the voltage detection unit and a detection current value detected by the current detection unit; and a control unit configured to decrease a current limiting level of the current limiting element when the voltage drop detection unit detects the voltage drop.
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