US 12,746,834 B1 · Wireless power transfer systems

Abstract

System and methods for providing a magnetic field. The methods comprise: supplying AC power to a four-phase coil assembly operable in a plurality of different operational modes; creating a rotating magnetic field by the four-phase coil assembly when operating in a first mode of the plurality of different operational modes; and creating a non-rotating magnetic field by the four-phase coil assembly when operating in a second mode of the plurality of different operational modes. The four-phase coil assembly comprise at least one first layer of four coils disposed on a magnetic core so as to be arranged symmetrically around a center of the four-phase coil assembly. Each of the four coils is associated with a respective one of four phases.

Claims20

Dependent claims

A method for providing a magnetic field, comprising:

supplying AC power to a four-phase coil assembly operable in a plurality of different operational modes;
creating a rotating magnetic field by the four-phase coil assembly when operating in a first mode of the plurality of different operational modes;
and
creating a non-rotating magnetic field by the four-phase coil assembly when operating in a second mode of the plurality of different operational modes;
wherein the four-phase coil assembly has a shape and comprises at least one first layer of four coils disposed on a magnetic core so as to be arranged symmetrically around a center of the four-phase coil assembly;
and
wherein each of the four coils is associated with a respective one of four phases.

4 more elements

Dependencies are inferred from the claim text.

Wireless power transfer systems

Life of this patent

Wireless power transfer systems

Life of this patent

Abstract

Claims20