초록 ▼

An inductive power supply system to identify remote devices using unique identification frequencies. The system includes an AIPS and a tank circuit capable of inductively providing power to a remote device at different frequencies, and a sensor for sensing the reflected impedance of the remote devic

An inductive power supply system to identify remote devices using unique identification frequencies. The system includes an AIPS and a tank circuit capable of inductively providing power to a remote device at different frequencies, and a sensor for sensing the reflected impedance of the remote device at tank circuit. The system further includes a plurality of different remote devices, each having a unique resonance frequency. In operation, the AIPS is capable of identifying the type of remote device present in the inductive field by applying power to a remote device at a plurality of unique identification frequencies until the remote device establishes resonance in response to one of the identification frequencies. The AIPS includes a controller that recognizes when resonance has been established by evaluating sensor data, which is representative of the reflected impedance of the remote device. Once the identity of a remote device is determined, the AIPS may pull operating parameters for the remove device from memory to ensure efficient operation and to assist in recognizing fault conditions.

대표청구항 ▼

The invention claimed is: 1. A method for controlling an inductive power supply to supply power to at least one remote device, comprising the steps of:providing the at least one remote device having device circuitry and a secondary configured for receiving operating wireless power, wherein the opera

The invention claimed is: 1. A method for controlling an inductive power supply to supply power to at least one remote device, comprising the steps of:providing the at least one remote device having device circuitry and a secondary configured for receiving operating wireless power, wherein the operating wireless power is used to operate the device circuitry, wherein at least one of a plurality of identification frequencies being associated with each of the at least one remote device, wherein each of the at least one remote device has a resonant frequency at or near at least one frequency from among the plurality of identification frequencies;selecting an identification frequency from among the plurality of identification frequencies;applying an inductive field to the at least one remote device at the identification frequency;determining whether the at least one remote device has the resonant frequency substantially at the applied identification frequency to identify the at least one remote device; andoperating the inductive power supply to supply the operating wireless power to the identified at least one remote device according to an operating parameter based on an outcome of said determining step, wherein the operating parameter corresponds to the identified at least one remote device.