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1. 发明授权

US10110063B2 Wireless power alignment guide 有权
公开(公告)号：US10110063B2
公开(公告)日：2018-10-23
申请号：US15082641
申请日：2016-03-28
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： H02J50/10 , H02J50/40 , H01F38/14 , H01F27/28 , H01F27/40
摘要： In one embodiment, a wireless power alignment guide uses multiple coils and a detector circuit to determine an offset between a wireless power receiver and a wireless power transmitter. A transmitter generates a magnetic field that causes a first time-varying current to flow in a first coil and a second time-varying current to flow in a second coil of the wireless power alignment guide. The first time-varying current can flow to the second coil and the second time-varying current can flow to the first coil. A detector circuit detects a voltage resulting from the first time-varying current and the second time-varying current and determines an offset so the user can center the receiver with the transmitter. By correcting any offset between the receiver and the transmitter, greater amounts of power can be transferred to the receiver in comparison to a receiver that is offset from a transmitter.

2. 发明申请

US20180005755A1 Bent Coil Structure for Wireless Power Transfer 审中-公开
公开(公告)号：US20180005755A1
公开(公告)日：2018-01-04
申请号：US15708426
申请日：2017-09-19
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： H01F38/14 , H02J50/12 , H01F27/28 , H02J7/02
CPC分类号： H01F38/14 , H01F27/2804 , H02J7/025 , H02J50/12 , H02J50/40
摘要： In one embodiment, an apparatus comprises a coil structure comprising a first coil and a second coil, each of the first coil and the second coil having a first side portion, a center portion, and a second side portion, wherein the first side portion forms a first angle with the center portion and the second side portion forms a second angle with the center portion, and a layer of magnetic material adjacent to the center portion of the first coil and the center portion of the second coil, the first coil and the second coil being configured such that when a current flows in a first spatial direction in the first coil a current flows in a second spatial direction different from the first spatial direction in the second coil. In one embodiment, the apparatus further comprises a power circuit configured to provide a time-varying current to the coil structure and a battery configured to provide a direct current to the power circuit.

3. 发明申请

US20180062441A1 Segmented and Longitudinal Receiver Coil Arrangements for Wireless Power Transfer 审中-公开
公开(公告)号：US20180062441A1
公开(公告)日：2018-03-01
申请号：US15693201
申请日：2017-08-31
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： H02J50/10 , H02J7/02 , H02J7/04 , H01F27/28 , H01F27/24
CPC分类号： H02J50/10 , H01F27/24 , H01F27/28 , H01F27/38 , H01F38/14 , H02J7/025 , H02J7/04 , H02J50/12
摘要： In one embodiment, a receiver coil arrangement for wireless power transfer includes a segmented coil structure having a plurality of solenoid coil structures arranged such that a longitudinal axis of each of the plurality of solenoid coil structures is substantially parallel to a first spatial direction in a first plane, and the plurality of solenoid coil structures are not coaxial, the plurality of solenoid coil structures being electrically coupled together in series. In one embodiment, the receiver coil arrangement further includes a second solenoid coil structure arranged such that a longitudinal axis of the second solenoid coil structure lies in the first plane substantially perpendicular to the first spatial direction. In one embodiment, the second solenoid coil structure includes a helical coil wound around a magnetic core. In one embodiment, the second solenoid coil structure includes a split helical coil including two coil portions wound around a magnetic core, the two coil portions located symmetrically about a geometric center of the magnetic core, and the second solenoid coil structure further includes a third helical coil wound around the magnetic core.

4. 发明授权

US08779786B2 Remote sensing of PD-side voltage in 4-pair PoE applications for estimating cable resistance 失效
标题翻译：在4对PoE应用中远程检测PD侧电压，以估计电缆电阻
公开(公告)号：US08779786B2
公开(公告)日：2014-07-15
申请号：US13276263
申请日：2011-10-18
申请人： Sanjaya Maniktala , Sesha Panguluri
发明人： Sanjaya Maniktala , Sesha Panguluri
IPC分类号： G01R27/08 , G01R27/16 , G06F1/26 , H04L12/10
CPC分类号： G01R27/16 , G06F1/266 , H04L12/10 , H04L12/12
摘要： Provided is a system and associated method for detecting a resistance of a cable. An example method may comprise applying power to a first end of a first and a second conductive pair of the cable, measuring a first voltage across the first end of the first and second conductive pairs of the cable, applying a current source across the first end of a third and a fourth conductive pair of the cable, measuring a second voltage across the current source, and determining a resistance of the cable using the measured first and second voltages. This method may be carried out in a physical arrangement where a second end of the first, second, third and fourth conductive pairs of the cable are connected to a first, a second, a third and a fourth input terminal of a powered device, respectively.
摘要翻译：提供了一种用于检测电缆电阻的系统和相关方法。示例性方法可以包括将功率施加到电缆的第一和第二导电对的第一端，测量跨过电缆的第一和第二导电对的第一端的第一电压，跨过第一端施加电流源电缆的第三和第四导电对，测量电流源两端的第二电压，以及使用所测量的第一和第二电压确定电缆的电阻。该方法可以在物理布置中进行，其中电缆的第一，第二，第三和第四导电对的第二端分别连接到受电设备的第一，第二，第三和第四输入端。

5. 发明申请

US20110283118A1 Adaptive power sourcing equipment and related method for power over ethernet applications 审中-公开
标题翻译：自适应电源设备及以太网供电相关方法
公开(公告)号：US20110283118A1
公开(公告)日：2011-11-17
申请号：US12932881
申请日：2011-03-08
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： G06F1/26
CPC分类号： G06F1/266 , H04L12/10
摘要： There is presented a circuit and a related method for adaptively supplying Power over Ethernet (PoE) by a power sourcing equipment. The circuit comprises first and second power channels coupled to first and second network interfaces of the power sourcing equipment. A shunt device is operated to identify a maximum power characteristic of a powered device. The first power channel provides a first current to the powered device through the first network interface if the maximum power characteristic does not exceed a power threshold. The circuit provides another current to the powered device through the first network interface if the maximum power characteristic is greater than the power threshold. Various embodiments of the present invention may provide a second current to another powered device through the second network interface if the maximum power characteristic of the first and second powered devices does not exceed the power threshold.
摘要翻译：提出了一种通过电源设备自适应地提供以太网供电（PoE）的电路和相关方法。电路包括耦合到电源设备的第一和第二网络接口的第一和第二功率信道。操作分流装置以识别供电装置的最大功率特性。如果最大功率特性不超过功率阈值，则第一电源通道通过第一网络接口向受电设备提供第一电流。如果最大功率特性大于功率阈值，该电路通过第一网络接口向受电设备提供另一电流。如果第一和第二被动设备的最大功率特性不超过功率阈值，则本发明的各种实施例可以通过第二网络接口向另一供电设备提供第二电流。

6. 发明授权

US07804283B2 Mode transitioning in a DC/DC converter using a constant duty cycle difference 有权
标题翻译：使用恒定占空比差异在DC / DC转换器中进行模式转换
公开(公告)号：US07804283B2
公开(公告)日：2010-09-28
申请号：US11838696
申请日：2007-08-14
申请人： Jan Krellner , Sanjaya Maniktala
发明人： Jan Krellner , Sanjaya Maniktala
IPC分类号： G05F1/618
CPC分类号： H02M3/1582
摘要： According to an exemplary embodiment, a method includes the step (910) of driving a buck section of a DC/DC converter with a buck signal that has a buck duty cycle and concurrently with driving the buck section, driving a boost section of the DC/DC converter with a boost signal that has a boost duty cycle, a difference existing between the buck duty cycle and the boost duty cycle. The method also includes the step (920) of monitoring an input voltage that is coupled to the buck section for a change in the input voltage, and in response to a change in the input voltage, the step (930) of changing the buck duty cycle and the boost duty cycle such that the difference between the buck duty cycle and the boost duty cycle is substantially constant.
摘要翻译：根据示例性实施例，一种方法包括：步骤（910），其利用具有降压占空比的降压信号驱动DC / DC转换器的降压部分，并与驱动降压部分同时驱动DC的升压部分 / DC转换器，具有升压占空比的升压信号，降压占空比与升压占空比之间存在差异。该方法还包括监测与输入电压变化相关联的输入电压的步骤（920），并且响应于输入电压的变化，改变降压负荷的步骤（930）周期和升压占空比，使得降压占空比与升压占空比之间的差异基本上是恒定的。

7. 发明申请

US20180205260A1 Wheel Coils and Center-Tapped Longitudinal Coils for Wireless Power Transfer 审中-公开
公开(公告)号：US20180205260A1
公开(公告)日：2018-07-19
申请号：US15866786
申请日：2018-01-10
申请人： Disha Maniktala , Sanjaya Maniktala
发明人： Disha Maniktala , Sanjaya Maniktala
IPC分类号： H02J7/02 , H04B5/00 , H02J50/12 , H01F38/14 , H02J5/00
摘要： In one embodiment, a wireless power transfer coil structure comprises a wheel core comprising an annulus portion and at least two spoke portions arranged substantially symmetrically with respect to a geometric center of the annulus portion, the wheel core formed from a magnetic material, and a coil located on an outer surface of the annulus portion of the wheel core. In one embodiment, the wireless power transfer coil structure further comprises at least one solenoidal coil wound around the at least two spoke portions of the wheel core. In one embodiment, the at least one solenoidal coil is wound around one of the at least two spoke portions of the wheel core in a first direction and wound around another of the at least two spoke portions of the wheel core in the first direction. In one embodiment, the at least one solenoidal coil is wound around one of the at least two spoke portions of the wheel core in a first direction and wound around another of the at least two spoke portions of the wheel core in a second direction different from the first direction.

8. 发明申请

US20170256990A1 Receiver Coil Arrangements for Inductive Wireless Power Transfer for Portable Devices 审中-公开
公开(公告)号：US20170256990A1
公开(公告)日：2017-09-07
申请号：US15448196
申请日：2017-03-02
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： H02J50/12 , H01F27/24 , H01F27/28 , H02J7/02 , H02J50/40
CPC分类号： H02J50/12 , H01F27/24 , H01F27/28 , H01F38/14 , H02J7/025 , H02J50/40
摘要： In one embodiment a wireless power receiver system includes a plurality of receiver coil structures, each of the plurality of receiver coil structures including a receiver coil, and a receive circuit coupled to each of the plurality of receiver coil structures, the receive circuit configured to receive a time varying current induced in at least one of the plurality of receiver coil structures and to output a voltage. In one embodiment, the receive circuit includes a plurality of rectifier circuits coupled in parallel, each of the plurality of rectifier circuits coupled to one of the plurality of receiver coil structures. In one embodiment, at least one of the plurality of receiver coil structures includes a ferrite core and a helical coil wrapped around the ferrite core. In one embodiment, at least one of the plurality of receiver coil structures includes a magnetic layer and a coil in the shape of a flat spiral.

9. 发明申请

US20170170688A1 System for Inductive Wireless Power Transfer for Portable Devices 审中-公开
公开(公告)号：US20170170688A1
公开(公告)日：2017-06-15
申请号：US15375499
申请日：2016-12-12
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： H02J50/12 , H02J7/02 , H01F38/14
CPC分类号： H02J50/12 , H01F27/255 , H01F27/26 , H01F38/14 , H02J7/025
摘要： In one embodiment a wireless power transfer system comprises a transmitter including a power source configured to generate a time-varying current, a first coil configured to receive the first time-varying current from the power source, wherein the time-varying current flows in the first coil in a first direction, a second coil coupled to the first coil in such a way that the time-varying current flows in the second coil in a second direction, wherein the first direction is opposite from the second direction, and an underlying magnetic layer configured to magnetically couple the first coil with the second coil, and a wireless power receiver, a ferrite core and a receiver coil that share a longitudinal axis, and a receive circuit coupled to the receiver coil configured to convert a time varying current induced in the receiver coil into a voltage.

10. 发明申请

US20160285312A1 Wireless Power Alignment Guide 审中-公开
标题翻译：无线电源调整指南
公开(公告)号：US20160285312A1
公开(公告)日：2016-09-29
申请号：US15082641
申请日：2016-03-28
申请人： Sanjaya Maniktala
发明人： Sanjaya Maniktala
IPC分类号： H02J50/10 , H02J50/40 , H01F27/28
CPC分类号： H02J50/10 , H01F27/2804 , H01F27/402 , H01F38/14 , H02J50/40
摘要： In one embodiment, a wireless power alignment guide uses multiple coils and a detector circuit to determine an offset between a wireless power receiver and a wireless power transmitter. A transmitter generates a magnetic field that causes a first time-varying current to flow in a first coil and a second time-varying current to flow in a second coil of the wireless power alignment guide. The first time-varying current can flow to the second coil and the second time-varying current can flow to the first coil. A detector circuit detects a voltage resulting from the first time-varying current and the second time-varying current and determines an offset so the user can center the receiver with the transmitter. By correcting any offset between the receiver and the transmitter, greater amounts of power can be transferred to the receiver in comparison to a receiver that is offset from a transmitter.
摘要翻译：在一个实施例中，无线电力对准指南使用多个线圈和检测器电路来确定无线电力接收器和无线电力发射器之间的偏移。发射机产生磁场，其使得第一时变电流在第一线圈中流动，而第二时变电流在无线功率对准引导件的第二线圈中流动。第一时变电流可以流到第二线圈，并且第二时变电流可以流到第一线圈。检测器电路检测由第一时变电流和第二时变电流产生的电压，并确定偏移量，使得用户可以使接收器与发射器对中。通过校正接收机和发射机之间的任何偏移，与从发射机偏移的接收机相比，可将更大量的功率传送到接收机。

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