Apparatus, systems and methods for scalable 3d wireless charging utilizing multiple coils
AssigneeGaN Systems Inc.
InventorsTiefeng SHI, Paul WIENER
Life of this patent
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Abstract
A wireless power transfer (WPT) system is provided to drive multiple resonator coils utilizing one power amplifier. The WPT system may include a power amplifier, a differential 1:N power divider, impedance inversion circuits and multiple resonator coils. The WPT system may further include auto-tuning circuits with sensors that facilitate the efficient driving of the multiple resonator coils. As well, there is provided various 3D shaped coil topologies that are comprised of two or more separate coils. The 3D coil topology designs each provide a particular 3D magnetic field for wireless charging.
Claims15
A 3D shaped transmitter resonator coil topology for generating a 3D magnetic field distribution in a resonant wireless power transfer (WPT) system, the 3D coil topology comprising:
- a first coil;
- and
- a second coil;
- wherein the first coil and the second coil are positioned relative to each other to form a 3D shape.
Dependencies are inferred from the claim text.