公开(公告)号：US20190265314A1

公开(公告)日：2019-08-29

申请号：US15903832

申请日：2018-02-23

Applicant: Integrated Device Technology, Inc.

Inventor： David WILSON

IPC: G01R33/10 ,  G01R33/24 ,  H02J50/10

Abstract: A system for mapping magnetic fields around a transmission coil is presented. The method includes selecting a selected induction loop from an array of selectable induction loops arranged adjacent the transmission coil, detecting current from the selected induction loop, the current being generated by a magnetic field from a transmission coil, to obtain measured values; and comparing measured values with expected values.

公开(公告)号：US20180124959A1

公开(公告)日：2018-05-03

申请号：US15793797

申请日：2017-10-25

Applicant: Integrated Device Technology, Inc.

Inventor： Alfredo SAAB ,  David WILSON

IPC: H05K9/00 ,  H04B5/00

Abstract: An EMI shield for a wireless power transmitter is presented. The EMI shield includes a patterned metallic layer that when positioned over a transmitting coil of the wireless power transmitter capacitively couples to the transmitting coil to capture electromagnetic radiation while allowing magnetic power to pass. In some embodiments, the patterned metallic layer may be a comb filter.

公开(公告)号：US20180138752A1

公开(公告)日：2018-05-17

申请号：US15815315

申请日：2017-11-16

Applicant: Integrated Device Technology, Inc.

Inventor： David WILSON ,  Christopher STEPHENS

IPC: H02J50/12 ,  G01R33/022

CPC classification number: H02J50/12 ,  G01R33/022 ,  H02J50/80 ,  H02J50/90

Abstract: A wireless power receiver is presented that allows for positioning of the receiver with respect to a transmitter coil. The receiver can base alignment information on the wireless power received from the transmit coil. In some embodiments, a secondary detector such as a beacon can be used to provide a direction towards alignment. The power receiver may include a receiver coil, a power detector configured to determine a power level received by the receiver coil, and a processor coupled to receive the power level from the power detector and provide an indication of the power level.

公开(公告)号：US20180309324A1

公开(公告)日：2018-10-25

申请号：US16024487

申请日：2018-06-29

Applicant: Integrated Device Technology, Inc.

Inventor： Manjit SINGH ,  Siamak BASTAMI ,  David WILSON

IPC: H02J50/10 ,  H02J7/02 ,  H02J50/20 ,  H02J5/00 ,  H04B5/00 ,  H02J50/60

CPC classification number: H02J50/10 ,  H02J5/005 ,  H02J7/025 ,  H02J50/20 ,  H02J50/60 ,  H04B5/0037 ,  H04B5/0068 ,  H04B5/0081

Abstract: An inductive wireless power transfer device comprises a transmitter that comprises a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage, and a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver. An inductive wireless power receiving device comprises a receiver that comprises a receive coil configured to generate a time varying signal in response to receiving a modulated wireless power signal from a transmitter in a coupling region, and a demodulator configured to demodulate the modulated wireless power signal from an established back-channel communication link from the transmitter to a receiver. Related inductive wireless power transfer systems and methods for back-channel communication from the transmitter to the receiver of an inductive wireless power transfer system are disclosed.

公开(公告)号：US20180301938A1

公开(公告)日：2018-10-18

申请号：US15951837

申请日：2018-04-12

Applicant: Integrated Device Technology, Inc.

Inventor： Gustavo MEHAS ,  David WILSON

IPC: H02J50/12 ,  H02J50/05 ,  H02J50/40 ,  H04B5/00 ,  H02J50/80

Abstract: A wireless power transmitter according to some embodiments can include a transmitter circuit configured to be coupled across a series coupled capacitor and transmit coil; and a controller coupled to a node between the capacitor and the transmit coil, the controller configured to adjust a reactive energy in the series coupled capacitor and transmit coil in response to a change in operating frequency.

公开(公告)号：US20180287435A1

公开(公告)日：2018-10-04

申请号：US15944508

申请日：2018-04-03

Applicant: Integrated Device Technology, Inc.

Inventor： David WILSON ,  Gustavo MEHAS

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

Abstract: A wireless power transmitter is presented. The wireless power transmitter includes a plurality of coils, each of the plurality of coils arranged to cover an area within transmit area; and a transmitter circuit coupled to energize each of the plurality of coils, the transmitter circuit energizing one or more of the plurality of coils to efficiently transfer power to a receiver.

公开(公告)号：US20180131412A1

公开(公告)日：2018-05-10

申请号：US15808684

申请日：2017-11-09

Applicant: Integrated Device Technology, Inc.

Inventor： David WILSON ,  Gustavo MEHAS ,  Detelin MARTCHOVSKY

IPC: H04B5/00 ,  H02J50/10

CPC classification number: H04B5/0037 ,  H02J50/10 ,  H02J50/12 ,  H02J50/80 ,  H04B5/0012

Abstract: A wireless power system according to some embodiments includes a wireless power receiver, the wireless power receiver including a receiver coil, a communications device incorporated with the receiver coil, a receiver transceiver coupled to the receiver communications device, and a receiver processor coupled to the receiver transceiver; and a wireless power transmitter, the wireless power transmitter including a transmitter coil, a transmitter communications device incorporated with the transmitter coil, a transmitter transceiver coupled to the transmitter communications device, and a transmitter processor coupled to the transmitter transceiver, wherein communications data is transmitted between the receiver communications device and the transmitter communications device.