Auxiliary Winding for Improved Performance of a Planar Inductive Charging Platform
First Claim
Patent Images
1. A battery charging apparatus comprising:
- an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed;
a first winding for generating lines of magnetic flux generally perpendicular to the charging surface;
and a second winding located within an area defined by the first winding for generating an auxiliary magnetic flux generally perpendicular to the charging surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A battery charging apparatus comprises an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed, and a first winding for generating lines of magnetic flux generally perpendicular to the charging surface. To compensate for voltage sag caused by a reduction in the flux generated by the first winding, a second winding is located within an area defined by the first winding for generating an auxiliary magnetic flux generally perpendicular to the charging surface.
36 Citations
17 Claims
-
1. A battery charging apparatus comprising:
-
an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed; a first winding for generating lines of magnetic flux generally perpendicular to the charging surface; and a second winding located within an area defined by the first winding for generating an auxiliary magnetic flux generally perpendicular to the charging surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification