A system for recharging an implantable medical device having a rechargeable battery while the implantable medical device is implanted within a patient includes a recharge energy source configured to be disposed exterior to the patient and a recharging bridge configured to be implanted within the patient. The recharging bridge is configured to facilitate energy transfer from the recharge energy source to the implantable medical device.

A system for recharging an implantable medical device having a rechargeable battery while the implantable medical device is implanted within a patient includes a recharge energy source configured to be disposed exterior to the patient and a recharging bridge configured to be implanted within the patient. The recharging bridge is configured to facilitate energy transfer from the recharge energy source to the implantable medical device.

A wireless power transmission system includes: a power transmitting device; a power receiving device; and a relay device. In a state where the relay side switch circuit has the relay side rectifier and the relay side load in a non-contact state, and the receiving side switch circuit has the receiving side rectifier and the receiving side load in a non-contact state, power is transmitted from the power transmitting device to the power receiving device via the relay device. After a DC voltage output from the receiving side rectifier reaching a requested voltage of the power receiving device, the receiving side switch circuit connects the receiving side rectifier to the receiving side load at a timing T2 that is different from a timing T1 at which the relay side switch circuit connects the relay side rectifier to the relay side load.

A wireless power transmission system includes: a power transmitting device; a power receiving device; and a relay device. In a state where the relay side switch circuit has the relay side rectifier and the relay side load in a non-contact state, and the receiving side switch circuit has the receiving side rectifier and the receiving side load in a non-contact state, power is transmitted from the power transmitting device to the power receiving device via the relay device. After a DC voltage output from the receiving side rectifier reaching a requested voltage of the power receiving device, the receiving side switch circuit connects the receiving side rectifier to the receiving side load at a timing T2 that is different from a timing T1 at which the relay side switch circuit connects the relay side rectifier to the relay side load.

Provided is a wireless power transceiver including a magnetic body, a solenoid coil wound with respect to the magnetic body, and a dual coil spaced downwardly from the solenoid coil and wound with respect to the magnetic body on opposite sides of the solenoid coil, the dual coil being wound in directions opposite to each other.

Provided is a wireless power transceiver including a magnetic body, a solenoid coil wound with respect to the magnetic body, and a dual coil spaced downwardly from the solenoid coil and wound with respect to the magnetic body on opposite sides of the solenoid coil, the dual coil being wound in directions opposite to each other.

A wireless device is disclosed that includes an antenna system comprising at least one inductive element and two or more capacitive elements. A switching component configured to change a circuit configuration of the capacitive elements. A controller configured to transmit a signal using the antenna system and to receive a response from a first device, to determine a communications protocol associated with the first device and to change a configuration of the antenna system in response to the detected communications protocol by actuating the switching component.

A wireless device is disclosed that includes an antenna system comprising at least one inductive element and two or more capacitive elements. A switching component configured to change a circuit configuration of the capacitive elements. A controller configured to transmit a signal using the antenna system and to receive a response from a first device, to determine a communications protocol associated with the first device and to change a configuration of the antenna system in response to the detected communications protocol by actuating the switching component.

A wireless power transfer system for wirelessly powering a conveyance apparatus of a first conveyance system and a conveyance apparatus of a second conveyance system including: a wireless electrical power transceiver located along a surface of the conveyance apparatus of the first conveyance system, a wireless electrical power transceiver located along a surface of the conveyance apparatus of the second conveyance system, the surface of the conveyance apparatus of the second conveyance system being opposite of the surface of the conveyance apparatus of the first conveyance system, wherein the wireless electrical power transceiver of the first conveyance system is configured to wirelessly transfer electrical power to the wireless electrical power transceiver of the second conveyance system when the wireless electrical power transceiver of the first conveyance system and the wireless electrical power transceiver of the second conveyance system are located proximate to one another.

The disclosure features apparatus, methods, and systems for wireless power transfer that include a power source featuring at least one resonator, a power receiver featuring at least one resonator, a first detector featuring one or more loops of conductive material and configured to generate an electrical signal based on a magnetic field between the power source and the power receiver, a second detector featuring conductive material, and control electronics coupled to the first and second detectors, where during operation, the control electronics are configured to measure the electrical signal of the first detector and compare the measured electrical signal of the first detector to baseline electrical information for the first detector to determine information about whether debris is positioned between the power source and the power receiver.