| 摘要 |
AN INDUCTIVE POWER SUPPLY SYSTEM (10) TO IDENTIFY REMOTE DEVICES (14) USING UNIQUE IDENTIFICATION FREQUENCIES. THE SYSTEM INCLUDES AN AIPS (12) AND A TANK CIRCUIT (48) CAPABLE OF INDUCTIVELY PROVIDING POWER TO A REMOTE DEVICE (14) AT DIFFERENT FREQUENCIES, AND A SENSOR (16) FOR SENSING THE REFLECTED IMPEDANCE OF THE REMOTE DEVICE AT TANK CIRCUIT (48). THE SYSTEM FURTHER INCLUDES A PLURALITY OF DIFFERENT REMOTE DEVICES (14), EACH HAVING A UNIQUE RESONANCE FREQUENCY. IN OPERATION, THE AIPS (12) IS CAPABLE OF IDENTIFYING THE TYPE OF REMOTE DEVICE (14) PRESENT IN THE INDUCTIVE FIELD BY APPLYING POWER TO A REMOTE DEVICE (14) ESTABLISHES RESONANCE IN RESPONSE TO ONE OF THE IDENTIFICATION FREQUENCIES. THE AIPS (12) INCLUDES A CONTROLLER (40) THAT RECOGNIZES WHEN RESONANCE HAS BEEN ESTABLISHED BY EVALUATING SENSOR DATA, WHICH IS REPRESENTATIVE OF THE REFLECTED IMPEDANCE OF THE REMOTE DEVICE (14). ONCE THE IDENTITY OF A REMOTE DEVICE IS DETERMINED, THE AIPS (12) MAY PULL OPERATING PARAMETERS FOR THE REMOTE DEVICE (14) FROM MEMORY (24) TO ENSURE EFFICIENT OPERATION AND TO ASSIST IN RECOGNIZING FAULT CONDITIONS. |
