Abstract:
A wireless power transfer (WPT) station is disclosed for wirelessly transferring power to a WPT enabled device. To initiate charging of the WPT enabled device, the WPT enabled device is simply moved to be proximate to the WPT station. After an initialization and setup period, the WPT station transmits power transfer signals to the WPT enabled device. The WPT enabled device receives the transferred power transfer signals, typically through inductive coupling, and extracts a voltage and/or current therefrom for charging. The extracted voltage and/or current can then be rectified and/or regulated by the WPT enabled device to produce a charging voltage and/or charging current that can be stored in a power storage element, such as a battery or a capacitor to provide some examples, of the WPT enabled device.