High efficiency wireless charging system and method
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United States of America Patent
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Jan 24, 2023
Grant Date -
Nov 19, 2020
app pub date -
Jun 17, 2019
filing date -
May 14, 2019
priority date (Note) -
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Abstract
A system includes a receiver coil configured to be magnetically coupled to a transmitter coil, a rectifier connected to the receiver coil, a first stage and a second stage connected in cascade between the rectifier and a load and a bias voltage source configured to be connected with a first voltage node through a first switch and a second voltage node through a second switch, wherein one of the first voltage node and the second voltage node supplies power to the bias voltage source.
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