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公开(公告)号：US10476306B2
公开(公告)日：2019-11-12
申请号：US15325737
申请日：2015-07-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
IPC: H02J50/12 , H02M7/5388
Abstract: Claimed is a method for control in wireless power transfer systems and a wireless power transfer system implementing such method. The system comprises a transmitting inductor; a receiving inductor spaced apart from the transmitting inductor; a half bridge inverting circuit or a full bridge inverting circuit with constant switching frequency for driving the current in the transmitting inductor, wherein said half bridge inverting circuit comprises at least two switches, or said full bridge inverting circuit comprises at least two diagonal pairs of switches. The switches or diagonal pairs of switches are configured to be turned on complementarily, and the current amplitude in the transmitting inductor is controlled by varying the difference between the on-times of said switches. The claimed method and system provide efficient power transfer in conditions of variable load and/or variable input voltage and/or variable coupling between Tx and Rx parts.
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公开(公告)号：US11620459B2
公开(公告)日：2023-04-04
申请号：US17535066
申请日：2021-11-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dmitry Sergeevich Zarshchikov , Andrey Vladimirovich Kletsov , Alexander Gennadevich Chernokalov , Vyacheslav Vasilevich Tyrtov
Abstract: The invention relates to local positioning and more particularly to methods of searching and registering tags in a local positioning system. A method of registering tags in a local positioning system is provided. Registering is performed in near-field mode. Tag stores identifying data of the local positioning system. Positioning unit stores identifying data of the tag. Furthermore, a method of searching a tag registered in a local positioning system is provided. Positioning units send address search packets into the space of the local positioning system. Desired tag responds with a positioning pulse. There is also provided a method of searching identifying data of a tag not registered in a local positioning system. Positioning units send broadcast search packets into the space of the local positioning system. Bisection method is used to detect identifying data of the tag. The invention can reduce power consumption by the tag and the positioning unit, and eliminate overlapping the signals received from a plurality of tags.
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公开(公告)号：US11216624B2
公开(公告)日：2022-01-04
申请号：US16651756
申请日：2018-11-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dmitry Sergeevich Zarshchikov , Andrey Vladimirovich Kletsov , Alexander Gennadevich Chernokalov , Vyacheslav Vasilevich Tyrtov
Abstract: The invention relates to local positioning and more particularly to methods of searching and registering tags in a local positioning system. A method of registering tags in a local positioning system is provided. Registering is performed in near-field mode. Tag stores identifying data of the local positioning system. Positioning unit stores identifying data of the tag. Furthermore, a method of searching a tag registered in a local positioning system is provided. Positioning units send address search packets into the space of the local positioning system. Desired tag responds with a positioning pulse. There is also provided a method of searching identifying data of a tag not registered in a local positioning system. Positioning units send broadcast search packets into the space of the local positioning system. Bisection method is used to detect identifying data of the tag. The invention can reduce power consumption by the tag and the positioning unit, and eliminate overlapping the signals received from a plurality of tags.
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