Power harvesting circuit and applications thereof
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United States of America Patent
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Sep 19, 2017
Issued Date -
N/A
app pub date -
May 13, 2016
filing date -
Jan 5, 2012
priority date (Note) -
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Abstract
A power harvesting circuit, a rectifier circuit and a capacitor. The rectifier circuit includes a diode circuit, a diode voltage reduction circuit, and a start up current circuit. The diode circuit passes a current when a received RF signal has a first polarity and to substantially blocks the current when the received RF signal has a second polarity. The diode voltage reduction circuit is operably coupled to reduce a voltage drop of the diode circuit. The start up current circuit operably coupled to reduce the start up current of the diode voltage reduction circuit and/or the diode circuit. The capacitor is operably coupled to convert the rectified signal into a DC supply voltage.
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