System and method for coded communication signals regulating inductive power transmission

摘要

An inductive power transfer system and method for transferring power to an electrical device wirelessly includes an inductive power outlet and an inductive power receiver. During operation, instruction signals are sent from the inductive power outlet to the inductive power receiver. When no instruction signals are transferred, the system is configured to deactivate such that power is drawn by the system only during operation.

主权项

1. A signal reception circuit for an inductive power outlet operable to regulate inductive power transmission across an inductive power coupling, the inductive power coupling comprising at least one primary inductive coil associated with the inductive power outlet and a secondary inductive coil associated with an inductive power receiver,
the inductive power outlet comprising: the at least one primary inductive coil connectable to a power supply; at least one driver configured to provide an oscillating voltage across the at least one primary inductive coil; and the signal reception circuit; wherein the signal reception circuit comprises a monitor wired to the at least one primary inductive coil, the monitor configured to detect at least one coded signal generated by a signal transmission circuit of the inductive power receiver connecting an electrical element to the secondary inductive coil; the at least one coded signal detectable as a pulse in primary voltage or primary current, the pulse having an identifiable characteristic frequency.