SYSTEM AND METHOD FOR INDUCTIVELY CHARGING A BATTERY

摘要

An inductive charging system (4) for recharging a battery (34). The system includes a charger circuit (6) and a secondary circuit (8). The secondary circuit (8) includes a feedback mechanism (84) to provide feedback to the charger circuit (6) through the inductive coupling of the primary coil (15) and the secondary coil (30). The charger circuit (6) includes a frequency control mechanism (80) for controlling the frequency of the power applied to the primary coil (15) at least partly in response to the feedback from the feedback mechanism (84).