Inductive power source and charging system

摘要

A portable inductive power source, power device, or unit, for use in powering or charging electrical, electronic, battery-operated, mobile, and other devices is disclosed herein. In accordance with an embodiment the system comprises a pad or similar base unit that contains a primary, which creates an alternating magnetic field by means of applying an alternating current to a winding, coil, or any type of current carrying wire. A receiver comprises a means for receiving the energy from the alternating magnetic field from the pad and transferring it to a mobile or other device. In some embodiments the receiver can also comprise electronic components or logic to set the voltage and current to the appropriate levels required by the mobile device, or to communicate information or data to and from the pad. Embodiments may also incorporate efficiency measures that improve the efficiency of power transfer between the charger and receiver.

主权项

1. A mobile device capable of inductive powering or charging by a universal base unit for charging of different mobile devices and/or batteries of different charging characteristics associated therewith, comprising:
a battery, wherein one or both of a mobile device and the battery have particular charging characteristics associated therewith; a receiver and receiver coil, for one of inductively powering the device or charging the battery in the mobile device, wherein the receiver is one of attached to or incorporated into the battery or the mobile device, and wherein the receiver coil has a generally planar shape so that a magnetic field received in a direction substantially perpendicular to the plane of the receiver coil is used to inductively generate a current in the receiver coil; an identification component associated with the mobile device or battery, which is configured to provide wireless identification of the receiver to the universal base unit; a means for avoiding overcharging one or both of the mobile device and battery inductively; and a regulator, coupled to the output of the receiver or to the battery, that regulates an output voltage or output current provided by the receiver, to the mobile device or battery, to be within a range of parameters for the mobile device or the battery; wherein different mobile devices and batteries can have different charging characteristics associated therewith; and wherein the receiver communicates with the base unit to
detect, identify and authenticate the receiver with the base unit, as provided by the identification component,determine and then activate one or more primary coils of the base unit which are aligned with the receiver coil,verify the continued presence of the receiver near the base unit, andcommunicate information describing the characteristics of the mobile device or the battery, for use by the base unit to provide power transfer to the receiver and to the mobile device and the battery according to their particular charging characteristics.