Patent ID: 7801573
Filing Date: 2010-09-21
Classification: H02J

Abstract:
1. A charger cradle, comprising: a receiving portion for receiving and holding a cordless handset therein, the receiving portion having an electrical contact for contacting with a charge contact of the cordless handset; and a charging circuit for providing a charging current to the cordless handset through the contact of the electrical contact of the receiving portion and the charge contact of the cordless handset; wherein the receiving portion includes a holding device that generates a magnetic field that provides at least 50 gram-force attraction when the electrical contact of the receiving portion and the charge contact of the cordless handset contact with each other to attract the cordless handset securely into the receiving portion, wherein the holding device includes a ferrite core and windings surrounding the ferrite core, wherein the ferrite core is rectangular, and wherein a holding current flowing through the windings in the holding device is independent of the charging current provided by the charging circuit.