公开(公告)号：US09837864B2

公开(公告)日：2017-12-05

申请号：US14670371

申请日：2015-03-26

Applicant: Integrated Device Technology, Inc.

Inventor： Gustavo J. Mehas ,  Nicholaus W. Smith ,  Adam M. Bumgarner

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/12 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025

Abstract: A wireless power transmitter may include a bridge inverter and a plurality of parallel paths operably coupled to the bridge inverter. Each path includes a resonance tank including a transmit coil coupled with at least one resonance capacitor, a first switch serially coupled with the resonance tank and switching node A of the bridge inverter, a first clamping element in parallel with the first switch, a second switch serially coupled with the resonance tank and switching node B of the bridge inverter, and a second clamping element in parallel with the second switch. A method includes generating a wireless power signal through a used coil in a first parallel path, and clamping a parasitic voltage generated in at least one unused coil in at least one additional parallel path through a clamp element across a switch in the at least one parallel path for the at least one unused coil.

公开(公告)号：US20160077562A1

公开(公告)日：2016-03-17

申请号：US14752719

申请日：2015-06-26

Applicant: Integrated Device Technology, Inc.

Inventor： Nicholaus W. Smith

IPC: G06F1/26 ,  G06F1/32

CPC classification number: G06F1/266 ,  G06F1/263 ,  H02J1/10

Abstract: A system and method of wireless power transfer using automatic power supply selection includes an electronic system. The electronic system includes an electronics module, a primary power supply that receives power from a primary external power source, a secondary power supply that receives power from a secondary external power source, and a selection module. When the primary power supply is operative, the selection module selects the primary power supply to supply power to the electronics module and disables the secondary power supply. When the primary power supply is not operative and the secondary power supply is operative, the selection module selects the secondary power supply to supply power to the electronics module. When the secondary power supply is disabled, the secondary power supply disables the secondary external power source.

Abstract translation: 使用自动电源选择的无线电力传输的系统和方法包括电子系统。 电子系统包括电子模块，从主外部电源接收电力的主电源，从次级外部电源接收电力的次级电源以及选择模块。 当主电源工作时，选择模块选择主电源为电子模块供电，并禁用辅助电源。 当主电源不工作并且辅助电源工作时，选择模块选择辅助电源来向电子模块供电。 当二次电源被禁用时，二次电源禁用二次外部电源。

公开(公告)号：US10132650B2

公开(公告)日：2018-11-20

申请号：US14603296

申请日：2015-01-22

Applicant: Integrated Device Technology, Inc.

Inventor： Gustavo J. Mehas ,  David F. Wilson ,  Nicholaus W. Smith

IPC: H02J5/00 ,  G01D5/20 ,  H02J50/60 ,  H04B5/00 ,  H02J50/12 ,  H02J50/70 ,  H02J50/90

Abstract: A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.

公开(公告)号：US09898060B2

公开(公告)日：2018-02-20

申请号：US14752719

申请日：2015-06-26

Applicant: Integrated Device Technology, Inc.

Inventor： Nicholaus W. Smith

IPC: G06F1/26 ,  H02J1/10

CPC classification number: G06F1/266 ,  G06F1/263 ,  H02J1/10

Abstract: A system and method of wireless power transfer using automatic power supply selection includes an electronic system. The electronic system includes an electronics module, a primary power supply that receives power from a primary external power source, a secondary power supply that receives power from a secondary external power source, and a selection module. When the primary power supply is operative, the selection module selects the primary power supply to supply power to the electronics module and disables the secondary power supply. When the primary power supply is not operative and the secondary power supply is operative, the selection module selects the secondary power supply to supply power to the electronics module. When the secondary power supply is disabled, the secondary power supply disables the secondary external power source.

公开(公告)号：US20160285278A1

公开(公告)日：2016-09-29

申请号：US14670371

申请日：2015-03-26

Applicant: Integrated Device Technology, Inc.

Inventor： Gustavo J. Mehas ,  Nicholaus W. Smith ,  Adam M. Bumgarner

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025

Abstract: A wireless power transmitter may include a bridge inverter and a plurality of parallel paths operably coupled to the bridge inverter. Each path includes a resonance tank including a transmit coil coupled with at least one resonance capacitor, a first switch serially coupled with the resonance tank and switching node A of the bridge inverter, a first clamping element in parallel with the first switch, a second switch serially coupled with the resonance tank and switching node B of the bridge inverter, and a second clamping element in parallel with the second switch. A method includes generating a wireless power signal through a used coil in a first parallel path, and clamping a parasitic voltage generated in at least one unused coil in at least one additional parallel path through a clamp element across a switch in the at least one parallel path for the at least one unused coil.

Abstract translation: 无线电力发射机可以包括桥式逆变器和可操作地耦合到桥式逆变器的多个并行路径。 每个路径包括一个共振槽，包括与至少一个谐振电容耦合的发射线圈，与谐振槽串联耦合的第一开关和桥式逆变器的开关节点A，与第一开关并联的第一钳位元件，第二开关 与桥式逆变器的谐振槽和开关节点B串联耦合，以及与第二开关并联的第二钳位元件。 一种方法包括通过第一并行路径中使用的线圈产生无线功率信号，以及将至少一个未使用的线圈中产生的寄生电压钳位在穿过所述至少一个并联中的开关的夹紧元件的至少一个附加并行路径中 至少一个未使用的线圈的路径。

公开(公告)号：US20160218559A1

公开(公告)日：2016-07-28

申请号：US14603296

申请日：2015-01-22

Applicant: INTEGRATED DEVICE TECHNOLOGY, INC.

Inventor： Gustavo J. Mehas ,  David F. Wilson ,  Nicholaus W. Smith

IPC: H02J17/00 ,  G01D5/20 ,  H02J5/00

CPC classification number: G01D5/20 ,  H02J5/005 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70 ,  H02J50/90 ,  H04B5/0037

Abstract: A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.

Abstract translation: 无线电力发射机可以包括被配置为产生用于无线电力传输的无线电力信号的发射线圈，被配置为产生响应于无线电力传输期间产生的磁通量场的信号的至少一个次级感测线圈，以及被配置为 响应于从所述次级感测线圈接收的所述至少一个信号检测所述磁通场中的失真来检测无线电力传输系统的至少一个条件。 相关方法可以包括用无线功率发射机生成无线功率信号，利用多个辅助感测线圈产生一个或多个响应于在无线功率传输期间产生的磁通量场的信号，以及检测无线的至少一个状况 电力传输系统，其响应于由所述多个次级感测线圈产生的一个或多个信号。