WIRELESS BATTERY CHARGING

摘要

Systems and designs for charging a battery in a wireless power transfer system are provided, which may include any number of features. In one embodiment, an implantable wireless power receiver is coupled to a battery with a rectifier circuit. The receiver can include battery monitor circuitry configured to measure a parameter of the battery. The receiver can be configured to wirelessly communicate the parameter of the battery to the transmitter, which can control delivery of power from the transmitter to the receiver based on the measured battery parameter. Power can be delivered to the battery without utilizing a battery charge control circuit in the device or receiver. Methods of use are also provided.

主权项

1. A wireless power transfer system, comprising:
a device comprising a battery and a load; a receiver adapted to receive wireless power and deliver received power to the battery, the receiver having an output coupled via a rectifier to the device, the receiver including electronics configured to measure a parameter of the battery and communicate the measured parameter wirelessly; and a transmitter inductively coupled to the receiver, the transmitter being driven by a power source and a transmit controller, wherein the transmit controller is configured to control delivery of wireless power from the transmitter to the receiver based on the measured battery parameter.