Apparatus for inductively recharging batteries of a portable convenience device
View Patent ↗A rechargeable apparatus is provided for being recharged by an power source. The rechargeable apparatus include a rechargeable battery and a secondary inductive coil excited by the power source. The secondary inductive coil includes a first inductor having a first axis, a second inductor having a second axis, and a third inductor having a third axis. The first, second, and third axes are mutually orthogonal. The first, second, and third inductors produce a power output in response to said power source. The secondary inductive coil is electrically connected to the rechargeable battery whereby charging energy is coupled from the power source to the rechargeable battery regardless of an orientation of the secondary inductive coil to the power source.
1. A battery powered electronic device comprising:
an electronic device;
a battery connected to the electronic device for supplying electrical power thereto; and
a circuit connected to the battery for supplying electrical power thereto, the circuit including a first inductor, a second inductor, and a third inductor that are wound upon a common core that is shaped in the form of a rectilinear parallelepiped, the first, second, and third inductors defining respective first, second, and third axes that are mutually orthogonal relative to one another.
2. The battery powered electronic device defined in claim 1 wherein the common core defines first, second, and third dimensions, and wherein the first dimension defined by the common core is substantially smaller than the second and third dimensions.
3. The battery powered electronic device defined in claim 1 wherein the common core includes a peripheral surface defined by the first axis having a recess formed therein, and wherein the first inductor is disposed within the recess.
4. The battery powered electronic device defined in claim 1 wherein the electronic device is a cellular telephone.