Patents by Inventor Aiguo Hu
Aiguo Hu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11996698Abstract: A capacitive power transfer system can include a power transmitter having one or more primary side filter components, a communications modulator, and transmitter capacitive couplers; and a power receiver having receiver capacitive couplers capacitively coupled to the transmitter capacitive couplers, one or more secondary side filter components, and a communication demodulator. The one or more primary side filter components and the one or more secondary side filter components can be selected to provide power amplifier operation at a power delivery frequency and act as a stable gain high pass filter above a communications cutoff frequency that is higher than the power delivery frequency.Type: GrantFiled: August 15, 2022Date of Patent: May 28, 2024Assignee: Apple Inc.Inventors: Shaoge Zang, Zonghong Hu, Saining Ren, Ho Fai Leung, Aiguo Hu, Qi Zhu, Botunga Arachchige Rajith Chaminda Abeywardana, Lei Zhao
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Publication number: 20240113563Abstract: A wireless power transfer apparatus for capacitive-inductive power transfer has a primary and a secondary device separated by the conductive member. The primary device has at least two transmitter plates configured to be capacitively coupled with the conductive member to induce a current flow and generate a magnetic field in the conductive member. The secondary device is connectable to a load and provided with a receiving coil configured to be inductively coupled with the conductive member.Type: ApplicationFiled: December 8, 2023Publication date: April 4, 2024Inventors: Aiguo HU, Liang HUANG, Wei ZHOU
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Patent number: 11843245Abstract: A wireless power transfer apparatus for capacitive-inductive power transfer has a primary and a secondary device separated by the conductive member. The primary device has at least two transmitter plates configured to be capacitively coupled with the conductive member to induce a current flow and generate a magnetic field in the conductive member. The secondary device is connectable to a load and provided with a receiving coil configured to be inductively coupled with the conductive member.Type: GrantFiled: March 4, 2019Date of Patent: December 12, 2023Assignee: AUCKLAND UNISERVICES LIMITEDInventors: Aiguo Hu, Liang Huang, Wei Zhou
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Publication number: 20230198305Abstract: A capacitive power transfer system can include a power transmitter having one or more primary side filter components, a communications modulator, and transmitter capacitive couplers; and a power receiver having receiver capacitive couplers capacitively coupled to the transmitter capacitive couplers, one or more secondary side filter components, and a communication demodulator. The one or more primary side filter components and the one or more secondary side filter components can be selected to provide power amplifier operation at a power delivery frequency and act as a stable gain high pass filter above a communications cutoff frequency that is higher than the power delivery frequency.Type: ApplicationFiled: August 15, 2022Publication date: June 22, 2023Inventors: Zonghong Hu, Saining Ren, Shaoge Zang, Ho Fai Leung, Aiguo Hu, Qi Zhu, Botunga Arachchige Rajith Chaminda Abeywardana, Lei Zhao
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Publication number: 20220387806Abstract: A wireless power transfer system that employs a form of conductively coupled power transfer to transfer energy to deeply implanted devices.Type: ApplicationFiled: June 21, 2022Publication date: December 8, 2022Inventors: John Daniel McCormick, David Mortimer Budgett, Reza Sedehi, Aiguo Hu
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Patent number: 11322983Abstract: A polyphase inductive power transfer system primary or secondary apparatus includes a magnetic coupling coil associated with each phase and a compensation network associated with each magnetic coupling coil for providing power to or receiving power from the respective coil. At least one of the compensation networks has a different power transfer characteristic to one or more of the other compensation networks.Type: GrantFiled: December 5, 2017Date of Patent: May 3, 2022Assignee: Auckland UniServices LimitedInventors: Udaya Kumara Madawala, Duleepa Jayanath Thrimawithana, Lei Zhao, Patrick Aiguo Hu, Yuan Song
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Patent number: 10958104Abstract: An inductive power transmitter comprising a plurality of autonomous resonant inverters, wherein each inverter outputs a voltage to a respective transmitter coil/coils for inductive power transfer; and a magnetic coupling structure between the respective transmitter coils, wherein the magnetic coupling structure is configured to determine a phase shift between the output voltage of each inverter.Type: GrantFiled: October 8, 2015Date of Patent: March 23, 2021Assignee: Apple Inc.Inventors: Ali Abdolkhani, Aiguo Hu
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Publication number: 20210036553Abstract: An inductive power transfer device for transmitting or receiving magnetic flux, the device comprising two co-planar and adjacent coils defining respective apertures and having a magnetically permeable core located to at least partially overlap both apertures; the two co-planar coils together defining a shape which is substantially equally extended in orthogonal directions.Type: ApplicationFiled: August 11, 2020Publication date: February 4, 2021Inventors: Aiguo Hu, Jeffrey Douglas Louis, Geoff Chisholm, Duleepa Thrimawithana, Lei Zhao, Yunyu Tang, Udaya Madawala
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Publication number: 20210013743Abstract: A wireless power transfer apparatus for capacitive-inductive power transfer has a primary and a secondary device separated by the conductive member. The primary device has at least two transmitter plates configured to be capacitively coupled with the conductive member to induce a current flow and generate a magnetic field in the conductive member. The secondary device is connectable to a load and provided with a receiving coil configured to be inductively coupled with the conductive member.Type: ApplicationFiled: March 4, 2019Publication date: January 14, 2021Inventors: Patrick Aiguo HU, Liang HUANG, Wei ZHOU
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Publication number: 20190348866Abstract: A polyphase inductive power transfer system primary or secondary apparatus includes a magnetic coupling coil associated with each phase and a compensation network associated with each magnetic coupling coil for providing power to or receiving power from the respective coil. At least one of the compensation networks has a different power transfer characteristic to one or more of the other compensation networks.Type: ApplicationFiled: December 5, 2017Publication date: November 14, 2019Inventors: Udaya Kumara Madawala, Duleepa Jayanath Thrimawithana, Lei Zhao, Patrick Aiguo Hu, Yuan Song
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Patent number: 10396596Abstract: An inductive power transmitter having a plurality of transmitting coils for generating an alternating magnetic field arranged in a row with each transmitting coil partially overlapping with adjacent transmitting coils in the row. A transmitting circuit connected to each transmitting coil may drive the transmitting coils so that each transmitting coil's alternating magnetic field is phase shifted with respect to the alternating magnetic field of adjacent transmitting coils in the row or so that the alternating magnetic field generated by the transmitting coils travels along a charging surface.Type: GrantFiled: November 7, 2014Date of Patent: August 27, 2019Assignee: Apple Inc.Inventors: Ali Abdolkhani, Aiguo Hu, Ya-Ting Wang, Arunim Kumar
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Patent number: 10325719Abstract: An inductive power transfer coil assembly including: a magnetically permeable core including a base having a pair of spaced apart limbs extending therefrom; and a winding located between and above the pair of spaced apart limbs.Type: GrantFiled: May 14, 2015Date of Patent: June 18, 2019Assignee: Apple Inc.Inventors: Ali Abdolkhani, Aiguo Hu
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Patent number: 10269486Abstract: An inductive power transfer coil arrangement comprising: a first coil assembly including: at least a first magnetically permeable core including a base having first and second limbs extending away therefrom, wherein the first limb is located between two second limbs and extends further from the base than the second limbs, and at least one coil wound about at least one limb; and a second coil assembly including: at least a second magnetically permeable core for use in an inductive power transfer system, including a base having first and second limbs extending away therefrom, wherein the first limb is located between two second limbs that extend further from the base than the second limbs; and at least one coil wound about at least one limb; the first and second magnetically permeable cores being arranged in relatively moveable relationship such that in some relative positions the first and second magnetically permeable cores are opposed such as to provide effective magnetic coupling.Type: GrantFiled: May 14, 2015Date of Patent: April 23, 2019Assignee: Apple Inc.Inventors: Ali Abdolkhani, Aiguo Hu
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Patent number: 10069341Abstract: An inductively powered sensor system includes a primary conductive path 100 capable of being energised to provide an electromagnetic field in a defined space 1. An inductive power pick-up 120 is associated with a sensor 124 and is capable of receiving power from the field to supply the sensor 124. The system includes a first sensing means to sense the power available to the pick-up 120 and control means to increase or decrease the power available to the sensor dependant on the sensed power available. A method of inductively powering a sensor, an inductively powered sensor and an animal enclosure including one or more primary conductive path of an inductive power supply are also disclosed.Type: GrantFiled: March 5, 2015Date of Patent: September 4, 2018Assignee: Auckland Uniservices LimitedInventors: Simon Charles Malpas, Aiguo Hu, David Budgett
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Patent number: 10056784Abstract: The invention relates to inductive power transfer (IPT) systems, and has particular relevance to control of IPT systems, and to operation of IPT system primary power supplier. There is provided a method for controlling an IPT system primary power supply having a switched resonant circuit; the method comprising: determining the value of a parameter of the system; determining an energy injection switching pattern having a duration dependent on the parameter value; controlling the resonant circuit according to the determined energy injection switching pattern.Type: GrantFiled: October 1, 2013Date of Patent: August 21, 2018Assignee: Auckland UniServices LimitedInventors: David Mortimer Budgett, Aiguo Hu, Ho Yan (Alex) Leung, John Daniel McCormick
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Publication number: 20180233961Abstract: An inductive power transfer device for transmitting or receiving magnetic flux, the device comprising two co-planar and adjacent coils defining respective apertures and having a magnetically permeable core located to at least partially overlap both apertures; the two co-planar coils together defining a shape which is substantially equally extended in orthogonal directions.Type: ApplicationFiled: February 14, 2018Publication date: August 16, 2018Inventors: Aiguo Hu, Jeffery Douglas Louis, Geoff Chisholm, Duleepa Thrimawithana, Lei Zhao, Yunyu Tang, Udaya Madawala
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Patent number: 9998179Abstract: The present invention provides a power supply for an inductive power transfer (IPT) system, comprising a current-fed push-pull resonant converter comprising a parallel-tuned resonant tank and a pair of switches enabling selective shorting of the resonant tank; and a controller adapted to control a shorting period of the resonant converter by selectively operating the switches. Methods for controlling an IPT power supply are also disclosed. The power supply may be controlled to regulate the output of an IPT pick-up inductively coupled with the power supply in use, or to operate at a zero voltage switching (ZVS) frequency.Type: GrantFiled: March 11, 2013Date of Patent: June 12, 2018Assignee: AUCKLAND UNISERVICES LIMITEDInventors: David Budgett, Aiguo Hu, Bob Wang
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Publication number: 20170310164Abstract: An inductive power transmitter comprising a plurality of autonomous resonant inverters, wherein each inverter outputs a voltage to a respective transmitter coil/coils for inductive power transfer; and a magnetic coupling structure between the respective transmitter coils, wherein the magnetic coupling structure is configured to determine a phase shift between the output voltage of each inverterType: ApplicationFiled: October 8, 2015Publication date: October 26, 2017Applicant: PowerbyProxi LimitedInventors: Ali ABDOLKHANI, Aiguo HU
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Publication number: 20170279313Abstract: An inductive power transmitter comprising: at least two switching elements connected across a resonant circuit, the resonant circuit including an inductance and a capacitance; wherein the transmitter is configured to adjust the value of the capacitance based on a desired operating frequency.Type: ApplicationFiled: August 13, 2015Publication date: September 28, 2017Applicant: PowerbyProxi LimitedInventors: Aiguo HU, Jianlong TIAN
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Publication number: 20170264140Abstract: A push-pull inverter for an inductive power transmitter including a DC power supply that supplies power to a first and second branches; a resonant inductor connected between a first node on the first branch and a second node on the second branch; a first switch, switched by a first switching signal, connected between the first node and a common ground; and a second switch, switched by a second switching signal, connected between the second node and the common ground. The first switching signal is based upon the second node when the second node is low and based upon a DC source when the second node is high. The second switching signal is based upon the first node when the first node is low and based upon a DC source when the first node is high.Type: ApplicationFiled: November 7, 2014Publication date: September 14, 2017Inventors: Ali ABDOLKHANI, Aiguo HU