Alignment system for wireless electrical power transfer

摘要

A system to provide alignment between a source resonator and a capture resonator. The source resonator is configured to emit a magnetic charging signal or a magnetic beacon signal. The source resonator is coupled to an electrical power source that provides current to the source resonator. The source resonator emits the charging signal when the current exceeds a first threshold and emits the beacon signal when the current is below a second threshold. The capture resonator is configured to receive the charging signal and provide electrical power based on the charging signal. The system also includes a magnetic sensor configured to receive the beacon signal and provide a location signal indicative of a relative location between the transmit and capture resonators to a controller that provides an alignment signal indicative of a movement required to align the source resonator and the capture resonator.

主权项

1. A system to provide alignment between a source resonator and a capture resonator, said system comprising:
a source resonator configured to emit a magnetic signal selected from a group consisting of a charging signal and a beacon signal; a capture resonator configured to wirelessly receive the charging signal and provide electrical power based on the charging signal; a magnetic sensor configured to wirelessly receive the beacon signal and provide a location signal based on the beacon signal that is indicative of a relative location between the source resonator and the capture resonator; and a controller in communication with said magnetic sensor, said controller configured to receive the location signal and provide an alignment signal indicative of a movement required to align the source resonator and the capture resonator, wherein said source resonator is coupled to an electrical power source that provides an electric current to the source resonator, the source resonator emits the charging signal when a magnitude of the electric current exceeds a first current threshold, and the source resonator emits the beacon signal when the magnitude of the electric current is below a second current threshold.