To achieve the power sharing and improve misalignment tolerance of dual-channel wireless power transfer (WPT) systems

a dual-channel magnetic coupler is proposed based on the traditional double-layer quadrature double-D coil structure. This coupler exhibits excellent misalignment tolerance

namely tolerance for misalignment in any direction within the plane composed of X and Y axis. Its transmitting and receiving sides respectively include two decoupled coils

and mutual inductance between the two pairs of coils is symmetry within a certain misalignment range

which can achieve the power sharing of dual-channel WPT systems. Firstly

for dual-channel WPT systems using resonant compensation

detuned compensation and hybrid topology

the common requirements of magnetic couplers are discussed. Then

a design method for the proposed magnetic coupler is given and a case design is carried out. Furthermore

the conformity of the designed case with various performance indicators is analyzed by finite element simulation. Finally

a magnetic coupler prototype is developed for experimental verification. The results show that

within 100 mm misalignment in X and Y axis direction except for the extreme misalignment position

the magnetic coupler efficiency remains above 91.12% and the ratio of channel output power is greater than 0.87

demonstrating a good power sharing effect.