Synchronous rectifier design for wireless power receiver
AssigneeEnergous Corporation
InventorMichael A. Leabman
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Abstract
Synchronous rectifiers for wireless power receivers are disclosed herein. An example receiver includes: an antenna configured to: (i) receive radio frequency (RF) power transmission waves and (ii) convert the received RF power transmissions waves into an alternating current. The receiver also includes a synchronous rectifier, coupled to the antenna, configured to synchronously rectify the alternating current into a direct current, wherein the synchronous rectifier includes: a first diode configured to receive a first portion of the alternating current that has a positive polarity, a second diode configured to receive a second portion of the alternating current that has a negative polarity, a first transistor coupled to the first diode, and a second transistor coupled to the second diode.
Claims20
A receiver comprising:
- an antenna configured to:
- receive radio frequency (RF) power transmission waves;
- and
- convert the received RF power transmissions waves into an alternating current;
- and
- a synchronous rectifier, coupled to the antenna, configured to synchronously rectify the alternating current into a direct current, wherein the synchronous rectifier includes:
- a first diode configured to receive a first portion of the alternating current that has a positive polarity;
- a second diode configured to receive a second portion of the alternating current that has a negative polarity;
- a first transistor coupled to the first diode;
- and
- a second transistor coupled to the second diode.
A method for receiving wireless power, comprising:
- receiving, by an antenna of a receiver, radio frequency (RF) power transmission waves;
- converting, by the antenna, the RF power transmission waves into an alternating current;
- rectifying, by a synchronous rectifier of the receiver, the alternating current into a direct current,
- wherein the synchronous rectifier includes:
- a first diode configured to receive a first portion of the alternating current that has a positive polarity;
- a second diode configured to receive a second portion of the alternating current that has a negative polarity;
- a first transistor coupled to the first diode;
- and
- a second transistor coupled to the second diode.
Dependencies are inferred from the claim text.