公开(公告)号：US20180102675A1

公开(公告)日：2018-04-12

申请号：US15290294

申请日：2016-10-11

Applicant: QUALCOMM Incorporated

Inventor： Cody Burton WHEELAND ,  William Henry VON NOVAK, III ,  Joseph MAALOUF ,  Mark WHITE, II

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/80 ,  H02M7/06 ,  H02M7/12 ,  H02M7/21 ,  H02M2001/007

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for hybrid rectification for wireless power. Certain aspects of the present disclosure provide a wireless power receiver. The wireless power receiver includes a resonator configured to couple to a wireless field. The wireless field induces a voltage in the resonator. The wireless power receiver further includes an active rectifier comprising one or more switches. The wireless power receiver further includes a passive rectifier comprising one or more diodes. The wireless power receiver further includes a switch selectively coupling the active rectifier and the passive rectifier to the resonator.

公开(公告)号：US20190134409A1

公开(公告)日：2019-05-09

申请号：US16173952

申请日：2018-10-29

Applicant: QUALCOMM Incorporated

Inventor： William Henry VON NOVAK, III ,  Cody Burton WHEELAND ,  Linda Stacey IRISH

IPC: A61N1/378

Abstract: Certain aspects of the present disclosure relate to systems and methods for using electrostatic deflection of tissue to generate ultrasound power signals, such as for powering medical implants. Certain aspects of the present disclosure provide a system for generating ultrasonic pressure waves. The system includes an electrode configured to be positioned near a tissue. The system further includes an AC signal generator coupled to the electrode, wherein the AC signal generator is configured to apply an AC signal to the electrode causing the tissue to vibrate to generate ultrasonic pressure waves directed to an ultrasonic power receiver implanted under the tissue.

公开(公告)号：US20180054090A1

公开(公告)日：2018-02-22

申请号：US15241394

申请日：2016-08-19

Applicant: QUALCOMM Incorporated

Inventor： William Henry VON NOVAK, III ,  Linda Stacey IRISH ,  Cody Burton WHEELAND ,  Seong Heon JEONG

IPC: H02J50/12 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/80

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for controlling a power level of wireless power transfer. Certain aspects provide a wireless power receiver. The wireless power receiver includes an antenna and a rectifier. The rectifier includes a first diode and a second diode. The wireless power receiver further includes a resistor in parallel with the first diode. A first terminal of the resistor is coupled to a first terminal of the first diode. A second terminal of the resistor is coupled to a second terminal of the first diode.

公开(公告)号：US20190214842A1

公开(公告)日：2019-07-11

申请号：US16358325

申请日：2019-03-19

Applicant: QUALCOMM Incorporated

Inventor： Cody Burton WHEELAND ,  William Henry VON NOVAK, III ,  Linda Stacey IRISH

IPC: H02J7/02 ,  H02J50/20 ,  H02J50/10 ,  H04B5/00 ,  H02J50/80 ,  H02J50/12 ,  H02J50/90

CPC classification number: H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02J50/20 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0062 ,  H04B5/0087

Abstract: Certain aspects of the present disclosure are generally directed to apparatus and techniques for protecting electronic devices that may be prone to damage by wireless charging fields. For example, the apparatus may include a wireless charging circuit configured to selectively generate a wireless charging field and an impedance detection circuit coupled to the wireless charging circuit and configured to detect an impedance change corresponding to the wireless charging field. In this case, a proximity detection circuit may selectively detect proximity of one or more electronic devices that are prone to damage by the wireless charging circuit. In some aspects, detecting the proximity of the one or more electronic devices is activated based on detecting the impedance change, and wherein generating the wireless charging field comprises reducing a transmit power of the wireless charging field based on detecting the impedance change.

公开(公告)号：US20170331317A1

公开(公告)日：2017-11-16

申请号：US15373561

申请日：2016-12-09

Applicant: QUALCOMM Incorporated

Inventor： Cody Burton WHEELAND ,  William Henry VON NOVAK, III ,  Linda Stacey IRISH

IPC: H02J7/02 ,  H02J50/80 ,  H02J50/90 ,  H02J50/12

CPC classification number: H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02J50/20 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0062 ,  H04B5/0087

Abstract: Certain aspects of the present disclosure are generally directed to apparatus and techniques for protecting electronic devices that may be prone to damage by wireless charging fields. For example, the apparatus may include a wireless charging circuit configured to selectively generate a wireless charging field and an impedance detection circuit coupled to the wireless charging circuit and configured to detect an impedance change corresponding to the wireless charging field. In this case, a proximity detection circuit may selectively detect proximity of one or more electronic devices that are prone to damage by the wireless charging circuit. In some aspects, detecting the proximity of the one or more electronic devices is activated based on detecting the impedance change, and wherein generating the wireless charging field comprises reducing a transmit power of the wireless charging field based on detecting the impedance change.