MULTI-PLANE RECEIVING COIL FOR WIRELESSLY CHARGING A BATTERY

摘要

A multi-plane receiving coil structure includes a receiving coil having at least a first planar section and a second planar section where the windings of the receiving coil each traverse both planar sections. The planar sections include at least two planar sections that are not parallel, and which can be “L,” “J,” or “U” shaped. The receiving coil structure is disposed in a device that includes, or is coupled to, a battery to be charged by receiving energy from a charging coil of a wireless charger via the receiving coil structure.

主权项

1. A charging circuit for receiving a wireless charging signal, comprising:
a receiving coil having a plurality of windings and having a first planar section and a second planar section that is contiguous with the first planar section and oriented at an angle with respect to the first planar section, each winding of the plurality of windings having a first portion of the winding in the first planar section and a second portion of the winding in the second planar section; and ferromagnetic material having a first section that is layered with the first planar section of the receiving coil and a second section that is layered with the second planar section of the receiving coil.