Patent ID: 9312704
Filing Date: 2016-04-12
CPC Classification: H01R,H02J

Claim Text:
1. A USB wall plate charger, mountable on an AC wall outlet, for charging an external electronic device, which comprises: a housing, the housing having a first wall and at least a second wall, the housing defining an interior cavity; power outlet prongs mounted on and extending outwardly from the first wall of the housing, the power outlet prongs being receivable by an AC wall outlet to allow the USB wall plate charger to be mounted on and supported by the AC wall outlet; at least one USB port situated on the at least second wall of the housing, the at least one USB port including a charge pin, a DATA+ pin and a DATA− pin, the at least one USB port being provided with a charge voltage on the charge pin thereof for charging the external electronic device electrically connected to the at least one USB port, a first configuration voltage on one of the DATA+ pin and the DATA− pin thereof and a second configuration voltage on one of the DATA− pin and the DATA+ pin thereof; a power conversion circuit situated within the interior cavity of the housing, the power conversion circuit being electrically coupled to the power outlet prongs and converting an AC voltage provided on the AC wall outlet on which the USB wall plate charger is mounted to a DC voltage, the charge voltage provided to the charge pin of the at least one USB port being derived from the DC voltage from the power conversion circuit; at least one charging profile configuration circuit situated within the interior cavity of the housing, the at least one charging profile configuration circuit being responsive to the DC voltage from the power conversion circuit and generating the first configuration voltage provided to one of the DATA+ pin and the DATA− pin of the at least one USB port and the second configuration voltage provided to one of the DATA− pin and the DATA+ pin of the at least one USB port; and a charging profile selection switch mounted on the housing, the charging profile selection switch being selectively changeable between at least a first state and a second state, the charging profile selection switch being responsive to the first configuration voltage and the second configuration voltage provided by the at least one charging profile configuration circuit and providing the first configuration voltage to the DATA+ pin and the second configuration voltage to the DATA− pin of the at least one USB port when the charging profile selection switch is in the first state, and providing the first configuration voltage to the DATA− pin and the second configuration voltage to the DATA+ pin when the charging profile selection switch is in the second state.