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公开(公告)号：US10211677B2
公开(公告)日：2019-02-19
申请号：US15275841
申请日：2016-09-26
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Vladimir A. Muratov
Abstract: A mobile device includes a housing having a conductive region and a wireless power receiver having a receive coil configured to receive wireless power through the conductive region. The thickness of the conductive region is less than δ/10, wherein δ is a skin depth of the conductive region at a primary frequency of an electromagnetic signal that provides the wireless power.
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公开(公告)号：US10193375B2
公开(公告)日：2019-01-29
申请号：US15346273
申请日：2016-11-08
Applicant: MediaTek Inc.
Inventor： Philip Frank Tustin , William Plumb , Patrick Stanley Riehl
Abstract: Methods and apparatus for providing closed loop current control in a wireless power transmitter. The method comprises adjusting a transmitter coil current generated by the wireless power transmitter based, at least in part, on first feedback reported by at least one wireless power receiver and second feedback based on a measurement of the transmitter coil current.
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公开(公告)号：US20160261191A1
公开(公告)日：2016-09-08
申请号：US15007819
申请日：2016-01-27
Applicant: MediaTek Inc.
Inventor： Hasnain Akram , Patrick Stanley Riehl
IPC: H02M3/158
CPC classification number: H02M3/1588 , H02M3/33592 , H02M2001/0009 , Y02B70/1475
Abstract: Methods and circuits for controlling a synchronous rectifier. An operating condition of the synchronous rectifier is detected. A voltage level applied to turn on at least one transistor of the synchronous rectifier us modified based upon the detected operating condition, to improve efficiency of the synchronous rectifier.
Abstract translation: 用于控制同步整流器的方法和电路。 检测同步整流器的工作状态。 根据检测到的工作条件，施加电压电平以接通同步整流器的至少一个晶体管，以提高同步整流器的效率。
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公开(公告)号：US20160211702A1
公开(公告)日：2016-07-21
申请号：US15086367
申请日：2016-03-31
Applicant: MediaTek Inc.
Inventor： Vladimir A. Muratov , Patrick Stanley Riehl
CPC classification number: H02J50/10 , H01F27/38 , H01F38/14 , H02J7/025 , H02J50/40 , H02J50/80 , H02J50/90
Abstract: Apparatus and methods for dual-mode wireless power transfer are described. Two power transmit coils may be configured to provide magnetic resonant and magnetic inductance wireless power transfer from a same charging area of a wireless power transmitter. The coils and magnetic backing may be arranged to provide similar power transfer performance for the two power transfer methodologies.
Abstract translation: 描述了用于双模无线电力传输的装置和方法。 两个功率发射线圈可以被配置为提供来自无线功率发射器的相同充电区域的磁共振和磁感抗无线功率传输。 线圈和磁背衬可以被布置成为两种功率传递方法提供类似的功率传递性能。
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公开(公告)号：US10656185B2
公开(公告)日：2020-05-19
申请号：US15139792
申请日：2016-04-27
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Anand Satyamoorthy , Vladimir A. Muratov
Abstract: Apparatus and methods for sensing current carried by one or more planar conductors is described. A plurality of sensing coils may be fabricated adjacent to one or more planar, current-carrying conductors. The sensing coils may detect a magnetic field generated by time-varying current flowing through the one or more planar conductors. The sensing coils may be arranged to cancel uniform and linear-gradient magnetic fields.
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Patent Agency Ranking
公开(公告)号：US10326314B2
公开(公告)日：2019-06-18
申请号：US15411749
申请日：2017-01-20
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Hasnain Akram , Philip Frank Tustin
Abstract: A wireless power transmitter includes an inverter in which a voltage varies in response to a resonant network and circuitry configured to (A) measure a characteristic indicative of a load seen by the wireless power transmitter, (B) determine a duty cycle of the inverter based upon the characteristic, and (C) switch the inverter with the determined duty cycle.
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公开(公告)号：US10283997B2
公开(公告)日：2019-05-07
申请号：US14967469
申请日：2015-12-14
Applicant: MediaTek Inc.
Inventor： Anand Satyamoorthy , Patrick Stanley Riehl , William Kirwin , Ron-Chi Kuo
Abstract: A wireless power transfer apparatus includes a support structure having a top surface and a side surface. The support structure is configured to support a mobile device on the top surface and a wearable device at the side surface. The wireless power transfer apparatus also includes a plurality of transmit coils within the support structure. The plurality of transmit coils are configured to wirelessly transmit power to the mobile device on the top surface and the wearable device at the side surface.
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公开(公告)号：US20170302110A1
公开(公告)日：2017-10-19
申请号：US15411749
申请日：2017-01-20
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Hasnain Akram , Philip Frank Tustin
Abstract: A wireless power transmitter includes an inverter in which a voltage varies in response to a resonant network and circuitry configured to (A) measure a characteristic indicative of a load seen by the wireless power transmitter, (B) determine a duty cycle of the inverter based upon the characteristic, and (C) switch the inverter with the determined duty cycle.
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公开(公告)号：US20170222469A1
公开(公告)日：2017-08-03
申请号：US15346273
申请日：2016-11-08
Applicant: MediaTek Inc.
Inventor： Philip Frank Tustin , William Plumb , Patrick Stanley Riehl
Abstract: Methods and apparatus for providing closed loop current control in a wireless power transmitter. The method comprises adjusting a transmitter coil current generated by the wireless power transmitter based, at least in part, on first feedback reported by at least one wireless power receiver and second feedback based on a measurement of the transmitter coil current.
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公开(公告)号：US20170207661A1
公开(公告)日：2017-07-20
申请号：US15275841
申请日：2016-09-26
Applicant: MediaTek Inc.
Inventor： Patrick Stanley Riehl , Vladimir A. Muratov
CPC classification number: H02J50/12 , H02J7/025 , H02J50/90 , H04B5/0037 , H04B5/0075
Abstract: A mobile device includes a housing having a conductive region and a wireless power receiver having a receive coil configured to receive wireless power through the conductive region. The thickness of the conductive region is less than δ/10, wherein δ is a skin depth of the conductive region at a primary frequency of an electromagnetic signal that provides the wireless power.
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