System and method for alignment of wireless power transfer systems
AssigneeB. G. Negev Technologies and Applications Ltd., At Ben-Gurion University
InventorsAlon Kuperman, Andrey Vulfovich, Yegal Darhovsky, Vladimir Yuhimenko
Life of this patent
Estimating the term…
Abstract
A wireless power transmission (WPT) system may include: a charge transmitter; a charge receiver configured to receive wireless power from the charge transmitter, wherein the charge receiver includes a short circuit assembly configured, when activated, to short circuit a rectifier of the charge receiver; and a controller configured to activate the short circuit assembly, and to determine based on an inverter output current of the charge transmitter that an optimal alignment between the charge transmitter and charge receiver has been achieved.
Claims20
A wireless power transmission (WPT) system comprising:
- a charge transmitter;
- a charge receiver configured to receive wireless power from the charge transmitter, wherein the charge receiver includes a short circuit assembly configured, when activated, to short circuit a rectifier of the charge receiver;
- and
- a controller configured to activate the short circuit assembly, and to determine based on an inverter output current of the charge transmitter that an improved or optimal alignment between the charge transmitter and charge receiver has been achieved;
- wherein, during the determining, a transmitter-side reactance (XT), receiver-side reactance (XS), >>transmitter-side resistance (RT), receiver-side resistance (RS).
A method comprising:
- providing a wireless power transfer system including a controller, a charge transmitter and a charge receiver, wherein the charge receiver is configured to receive wireless power from the charge transmitter, and wherein the charge receiver includes a short circuit assembly configured, when activated, to short circuit a rectifier of the charge receiver;
- by the controller, activating the short circuit assembly;
- measuring an inverter output current of the charge transmitter;
- and
- determining based on the inverter output current that an improved or optimal alignment between the charge transmitter and charge receiver has been achieved;
- wherein, during the determining, a transmitter-side reactance (XT), receiver-side reactance (XS), >>transmitter-side resistance (RT), receiver-side resistance (RS).
Dependencies are inferred from the claim text.