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公开(公告)号：US20190305596A1
公开(公告)日：2019-10-03
申请号：US16005382
申请日：2018-06-11
Applicant: Apple Inc.
Inventor： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani
IPC: H02J50/12 , H02J7/02 , H02M7/5395
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may include an inverter configured to drive a resonant circuit and may further include a sinusoidal pulse-width modulation (PWM) signal generator configured to generate a corresponding sinusoidal PWM control signal. The inverter may have an input that receives the sinusoidal PWM control signal. The sinusoidal PWM control signal may exhibit a plurality of different pulse widths summing to the target duty cycle of the sinusoidal PWM control signal. Operated in this way, the wireless power transmitting device exhibits reduced harmonic distortions, which mitigates undesired radiated spurious emissions.
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公开(公告)号：US20240283301A1
公开(公告)日：2024-08-22
申请号：US18649495
申请日：2024-04-29
Applicant: Apple Inc.
Inventor： Andro Radchenko , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Rahul A. Sabnani
CPC classification number: H02J50/70 , H01F27/2885 , H01F27/36 , H01F27/363 , H01F38/14 , H02J50/10 , H02J50/12 , H02J50/402
Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号：US20210110969A1
公开(公告)日：2021-04-15
申请号：US17102903
申请日：2020-11-24
Applicant: Apple Inc.
Inventor： Andro Radchenko , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Rahul A. Sabnani
Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号：US11196298B2
公开(公告)日：2021-12-07
申请号：US16005382
申请日：2018-06-11
Applicant: Apple Inc.
Inventor： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani
IPC: H02J50/12 , H02M7/5395 , H02J7/02
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may include an inverter configured to drive a resonant circuit and may further include a sinusoidal pulse-width modulation (PWM) signal generator configured to generate a corresponding sinusoidal PWM control signal. The inverter may have an input that receives the sinusoidal PWM control signal. The sinusoidal PWM control signal may exhibit a plurality of different pulse widths summing to the target duty cycle of the sinusoidal PWM control signal. Operated in this way, the wireless power transmitting device exhibits reduced harmonic distortions, which mitigates undesired radiated spurious emissions.
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Patent Agency Ranking
公开(公告)号：US10886781B2
公开(公告)日：2021-01-05
申请号：US15997508
申请日：2018-06-04
Applicant: Apple Inc.
Inventor： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani , Yiling Xu
Abstract: A wireless power transmitting device includes a plurality of coils and respective wireless power transmitting circuitry coupled to each coil. The wireless power transmitting circuitry coupled to each coil may include an inverter and adjustable circuitry that is configured to mitigated radiated emissions in nominally passive coils in the power transmitting device. The wireless power transmitting circuitry coupled to each coil in the wireless power transmitting device may include adjustable circuitry coupled to an inverter output terminal in parallel or in series with the coil. The adjustable circuitry may have a variable capacitance that is controlled based on whether the coil is in an active or passive mode. The capacitance of the adjustable circuitry may be varied in a repeating cycle when the coil is in a passive mode. The adjustable circuitry may include one or more capacitors coupled between the inverter output terminal and ground.
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公开(公告)号：US20190393733A1
公开(公告)日：2019-12-26
申请号：US16145503
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Andro Radchenko , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Rahul A. Sabnani
Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号：US10855118B2
公开(公告)日：2020-12-01
申请号：US16145503
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Andro Radchenko , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Rahul A. Sabnani
Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号：US20190305595A1
公开(公告)日：2019-10-03
申请号：US15997508
申请日：2018-06-04
Applicant: Apple Inc.
Inventor： Soumya Mantha , Manjit S. Walia , Rahul A. Sabnani , Yiling Xu
Abstract: A wireless power transmitting device includes a plurality of coils and respective wireless power transmitting circuitry coupled to each coil. The wireless power transmitting circuitry coupled to each coil may include an inverter and adjustable circuitry that is configured to mitigated radiated emissions in nominally passive coils in the power transmitting device. The wireless power transmitting circuitry coupled to each coil in the wireless power transmitting device may include adjustable circuitry coupled to an inverter output terminal in parallel or in series with the coil. The adjustable circuitry may have a variable capacitance that is controlled based on whether the coil is in an active or passive mode. The capacitance of the adjustable circuitry may be varied in a repeating cycle when the coil is in a passive mode. The adjustable circuitry may include one or more capacitors coupled between the inverter output terminal and ground.
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9.发明申请FREQUENCY BANDWIDTH AND CHANNEL DEPENDENT TRANSMITTING POWER FOR LTE DEVICES 审中-公开用于LTE设备的频率带宽和频道依赖发射功率公开(公告)号：US20160360496A1
公开(公告)日：2016-12-08
申请号：US14732080
申请日：2015-06-05
Applicant: APPLE INC.
Inventor： Abhishek A. Mehta , Jianjian Li , Kaushal K. Mangtani , Manjit S. Walia , Mohit Narang , Peter M. Agboh , Rahul A. Sabnani , Shrenik Milapchand , Vikas O. Jain
CPC classification number: H04W52/283 , H04W52/0209 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/168 , Y02D70/26
Abstract: Methods and devices for reducing the power consumption and increasing the efficiency of an LTE transmitter of an electronic device are provided. By way of example, a method includes calculating location data related to a region in which the electronic device may operate via the electronic device, determining via the electronic device a region in which the electronic device is currently operating within based on the location data, and adjusting an output transmitting power of the electronic device based at least in part on the region and one or more frequency operating parameters utilized by the electronic device.
Abstract translation: 提供了用于降低功率消耗并提高电子设备的LTE发射机的效率的方法和设备。 作为示例，一种方法包括计算与电子设备可以经由电子设备操作的区域相关的位置数据，基于位置数据，经由电子设备确定电子设备当前在其中操作的区域;以及 至少部分地基于该电子设备所使用的区域和一个或多个频率操作参数来调整电子设备的输出发送功率。
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