Magnetic power transmission utilizing phased transmitter coil arrays and phased receiver coil arrays

A wireless power transfer system, comprising:

• first and second transmitter resonators configured to transmit wireless power to a receiver resonator implanted within a patient;
• a receive controller configured to measure first and second polarities of magnetic flux received by the receiver resonator from the first and second transmitter resonators, respectively, the first and second magnetic flux polarities defined by a direction in which the magnetic flux from the first and second transmitter resonators passes through the receiver resonator, the receive controller configured to communicate the measured first and second polarities to a transmit controller of the first and second transmitter resonators;
• the transmit controller being configured to adjust transmission of power from the first and second transmitter resonators to the receiver resonator based on the measured first and second polarities to maximize power transfer.