Single stage rectification and regulation for wireless charging systems
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United States of America Patent
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Apr 25, 2017
Grant Date -
Dec 3, 2015
app pub date -
May 30, 2014
filing date -
May 30, 2014
priority date (Note) -
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Abstract
A rectification and regulation circuit for a wireless power receiver includes a coil, a full-wave rectifier circuit and a control unit. The full-wave rectifier has a first pair of controllable rectifiers including a first transistor connected to a first terminal of the coil and a second transistor connected to a second terminal of the coil. The control unit is operable to control switching of the transistors of the full-wave rectifier so that the full-wave rectifier (a) generates a rectified output for charging a battery of the wireless power receiver by rectifying current through the coil or voltage across the coil and (b) regulates the rectified output.
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