Inrush current limiting circuit
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United States of America Patent
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May 6, 2014
Grant Date -
Jan 9, 2014
app pub date -
Jul 3, 2012
filing date -
Jul 3, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
In various embodiments a circuit is provided including: an input terminal to receive an input voltage; a switch, a first controlled input of which being coupled to the input terminal; an inductor, a first terminal of which may be coupled in series to a second controlled input of the switch; a freewheeling diode, wherein a first diode terminal may be coupled with the second controlled input of the switch and with the first terminal of the inductor, and wherein a second diode terminal may be coupled with a reference potential; a capacitor coupled with a second terminal of the inductor; and a controller configured to operate the switch and the inductor in continuous current mode to charge the capacitor.
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