Patents by Inventor Suma Memana Narayana Bhat
Suma Memana Narayana Bhat 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: 11955274Abstract: A receiver unit of a wireless power transfer system is presented. The receiver unit includes a main receiver coil, a plurality of auxiliary receiver coils disposed about a central axis of the main receiver coil, and a receiver drive subunit. The receiver drive subunit includes a main converter operatively coupled to the main receiver coil and having a main output terminal. The receiver drive subunit may include a plurality of auxiliary converters operatively coupled to the plurality of auxiliary receiver coils. The plurality of auxiliary converters may be operatively coupled to each other to form an auxiliary output terminal coupled in series to the main output terminal to form a common output terminal. In some implementations, the receiver drive unit may be formed on a substrate of an integrated electronic component. The integrated electronic component may further include a communication subunit and a controller disposed.Type: GrantFiled: May 22, 2023Date of Patent: April 9, 2024Assignee: General Electric CompanyInventors: Viswanathan Kanakasabai, Deepak Aravind, Suma Memana Narayana Bhat, Adnan Kutubuddin Bohori
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Publication number: 20240094426Abstract: This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. Some implementations relate generally to the use of detection coils that are excited to measure and compare a differential current through a coil pair that includes at least two detection coils. A foreign object may cause a change in impedance for one or more detection coils compared to one or more other detection coils. By detecting the differential current of the coil pair, a detection apparatus may determine that a foreign object is in proximity to one of the detection coils of the coil pair. This disclosure provides several options for the design, construction, layout, and operations of detection coils to improve foreign object detection.Type: ApplicationFiled: February 16, 2022Publication date: March 21, 2024Inventors: Viswanathan Kanakasabai, Subbarao Tatikonda, Jayanti Ganesh, Joginder Yadav, Suma Memana Narayana Bhat
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Patent number: 11916405Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for wireless power transmission. In accordance with this disclosure, a wireless power transmission apparatus (such as a charging pad) may support positional freedom such that a wireless power receiving apparatus may be charged regardless of positioning or orientation of the wireless power receiving apparatus. Various implementations include the use of multiple primary coils in a wireless power transmission apparatus. The multiple primary coils may be configured in a pattern, size, shape, or arrangement that enhances positional freedom. In some implementations, the placement of the multiple primary coils may optimize the size and distribution of electromagnetic fields that are available to charge a wireless power receiving apparatus.Type: GrantFiled: December 19, 2019Date of Patent: February 27, 2024Assignee: GE Hybrid Technologies, LLCInventors: Suma Memana Narayana Bhat, Viswanathan Kanakasabai, Deepak Aravind, Jayanti Ganesh, Adnan Kutubuddin Bohori
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Patent number: 11909226Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a wireless power transmission apparatus that supports charging of one or more wireless power receiving apparatuses. The wireless power transmission apparatus may include multiple primary coils organized in groups (referred to as zones). Each zone may have a local controller for managing operation of one primary coil in the zone at a time. A master controller may selectively couple the primary coils to the local controllers. When a first primary coil is coupled to the local controller for a zone, the other primary coils in that zone may be disabled. The master controller may manage which primary coils from neighboring zones are coupled to their respective local controllers. Thus, when the first primary coil is activated, the adjacent primary coils (near the first primary coil) can be muted or disabled to mitigate undesirable interference.Type: GrantFiled: May 20, 2020Date of Patent: February 20, 2024Assignee: General Electric CompanyInventors: Rupam Basak, Jayanti Ganesh, Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Subbarao Tatikonda
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Publication number: 20240047133Abstract: A charging pad (130) for charging one or more receiver devices (106, 108) is disclosed. The charging pad (130) includes a power drive unit (110) configured to generate a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Further, the charging pad (130) includes a transmitting unit (114) including a single power exchange coil (120) coupled to the power drive unit (110), wherein the single power exchange coil (120) includes a first coil segment (212) configured to transmit the first AC voltage signal having the first frequency when the first AC voltage signal is received from the power drive unit (110). Also, the single power exchange coil (120) includes a second coil segment (214) configured to transmit the second AC voltage signal having the second frequency when the second AC voltage signal is received from the power drive unit (110).Type: ApplicationFiled: October 23, 2023Publication date: February 8, 2024Inventors: Suma Memana Narayana Bhat, Deepak Aravind, Somakumar Ramachandrapanicker, Arun Kumar Raghunathan
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Publication number: 20240030754Abstract: This disclosure provides systems, methods and apparatuses for a new communication technique between a wireless power transmission apparatus and a wireless power reception apparatus. The new communication technique may be more efficient for communication of a feedback parameter or other control information compared to a legacy packet-based digital communication technique. The new communication technique may use a pulse width modulation (PWM) signal as an analog representation of a feedback parameter or other control information. In some implementations, the PWM communication technique in this disclosure can be used for a variety of control or feedback information from the wireless power reception apparatus to the wireless power transmission apparatus. Furthermore, in some implementations, the PWM communication technique may be used for feedforward information from the wireless power transmission apparatus to the wireless power reception apparatus.Type: ApplicationFiled: December 8, 2021Publication date: January 25, 2024Inventors: Viswanathan Kanakasabai, Rupam Basak, Suma Memana Narayana Bhat, Subbarao Tatikonda
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Publication number: 20230387727Abstract: This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. Some implementations relate generally to the use of detection coils that are excited to measure and compare a differential current through a coil pair that includes at least two detection coils. A foreign object may cause a change in impedance for one or more detection coils compared to one or more other detection coils. By detecting the differential current of the coil pair, a detection apparatus may determine that a foreign object is in proximity to one of the detection coils of the coil pair. This disclosure provides several options for the design, construction, layout, and operations of detection coils to improve foreign object detection.Type: ApplicationFiled: August 10, 2023Publication date: November 30, 2023Inventors: Viswanathan Kanakasabai, Subbarao Tatikonda, Jayanti Ganesh, Joginder Yadav, Suma Memana Narayana Bhat
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Publication number: 20230384471Abstract: This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. Some implementations relate generally to the use of detection coils that are excited to measure and compare a differential current through a coil pair that includes at least two detection coils. A foreign object may cause a change in impedance for one or more detection coils compared to one or more other detection coils. By detecting the differential current of the coil pair, a detection apparatus may determine that a foreign object is in proximity to one of the detection coils of the coil pair. This disclosure provides several options for the design, construction, layout, and operations of detection coils to improve foreign object detection.Type: ApplicationFiled: August 10, 2023Publication date: November 30, 2023Inventors: Viswanathan Kanakasabai, Subbarao Tatikonda, Jayanti Ganesh, Joginder Yadav, Suma Memana Narayana Bhat
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Patent number: 11798737Abstract: A charging pad for charging one or more receiver devices is disclosed. The charging pad includes a power drive unit configured to generate a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Further, the charging pad includes a transmitting unit including a single power exchange coil coupled to the power drive unit, wherein the single power exchange coil includes a first coil segment configured to transmit the first AC voltage signal having the first frequency when the first AC voltage signal is received from the power drive unit. Also, the single power exchange coil includes a second coil segment configured to transmit the second AC voltage signal having the second frequency when the second AC voltage signal is received from the power drive unit.Type: GrantFiled: December 3, 2021Date of Patent: October 24, 2023Assignee: General Electric CompanyInventors: Suma Memana Narayana Bhat, Deepak Aravind, Somakumar Ramachandrapanicker, Arun Kumar Raghunathan
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Publication number: 20230331103Abstract: A detection device (100) includes a detection mat (102) having a plurality of detection coils (106), and at least one pair of groups of detection coils (106), the pair of groups of detection coils (106) includes first and second groups of detection coils (106). The first and second group of detection coils (106) comprises first and second first and second impedance values. The detection device (100) includes one or more drive sub-systems (112) and a comparison sub-system (112). The drive sub-systems (112) are operatively coupled to the detection mat (102) and configured to excite at least one pair of groups of detection coils (106). The comparison sub-system (114) is operatively coupled to the detection mat (102) and configured to receive a differential current signal from the pair of groups of detection coils (106), the comparison sub-system (114) is configured to generate a control signal based on the differential current signal.Type: ApplicationFiled: June 21, 2023Publication date: October 19, 2023Inventors: Viswanathan Kanakasabai, Deepak Aravind, Suma Memana Narayana Bhat, Adnan Kutubuddin Bohori
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Publication number: 20230327491Abstract: A transmitting assembly (114, 214, 334) configured to transmit electric power in a universal wireless charging device (102, 200, 302) is presented. The transmitting assembly (114, 214, 334) includes a first coil (116, 216, 316) embedded in a printed circuit board (220) and configured to transmit a first AC voltage signal having a first frequency. Also, the transmitting assembly (114, 214, 334) includes a second coil (118, 218, 318) disposed on the printed circuit board (220) and configured to transmit a second AC voltage signal having a second frequency, wherein the second frequency is different from the first frequency, and wherein the first AC voltage signal having the first frequency and the second AC voltage signal having the second frequency are used to wirelessly charge a plurality of receiver devices (104, 106) having different frequency standards.Type: ApplicationFiled: June 16, 2023Publication date: October 12, 2023Inventors: Suma Memana Narayana Bhat, Viswanathan Kanakasabai, Arun Kumar Raghunathan, Rahul Bhujade, Satishbabu Bhogineni, Somakumar Ramachandrapanicker
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Publication number: 20230298810Abstract: A receiver unit of a wireless power transfer system is presented. The receiver unit includes a main receiver coil, a plurality of auxiliary receiver coils disposed about a central axis of the main receiver coil, and a receiver drive subunit. The receiver drive subunit includes a main converter operatively coupled to the main receiver coil and having a main output terminal. The receiver drive subunit may include a plurality of auxiliary converters operatively coupled to the plurality of auxiliary receiver coils. The plurality of auxiliary converters may be operatively coupled to each other to form an auxiliary output terminal coupled in series to the main output terminal to form a common output terminal. In some implementations, the receiver drive unit may be formed on a substrate of an integrated electronic component. The integrated electronic component may further include a communication subunit and a controller disposed.Type: ApplicationFiled: May 22, 2023Publication date: September 21, 2023Inventors: Viswanathan Kanakasabai, Deepak Aravind, Suma Memana Narayana Bhat, Adnan Kutubuddin Bohori
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Publication number: 20230291242Abstract: This disclosure provides systems, methods, and apparatuses for wireless power transmission. Various implementations of this disclosure relate generally to intermittent wireless charging. A wireless power transmission apparatus (such as a charging pad or surface) can intermittently provide wireless power to one or more wireless power reception apparatuses based on time slices. The wireless power reception apparatuses can cool during time slices in which wireless power is not transferred. A power control unit of the wireless power transmission apparatus may determine first time slices during which wireless power will be provided to the wireless power reception apparatus. The power control unit also may determine second time slices during which wireless power will not be provided to the wireless power reception apparatus, where the second time slices are interspersed with the first time slices allowing time for thermal loads that accumulated during the first time slices to dissipate.Type: ApplicationFiled: July 15, 2021Publication date: September 14, 2023Inventors: Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Subbarao Tatikonda
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Publication number: 20230275464Abstract: This disclosure provides systems, methods and apparatuses for wireless power transmission and reception. A wireless power transmission apparatus may include a primary coil that transmits power to a corresponding secondary coil in a wireless power reception apparatus. The wireless power transmission apparatus may configure characteristics of the wireless power transmission based on a load setting of a wireless power reception apparatus. The wireless power transmission apparatus may take into account a coupling factor and power transfer characteristics of the wireless power reception apparatus in determining a configuration of the wireless power transmission from the wireless power transmission apparatus to the wireless power reception apparatus. In some implementations, a change in wireless power transmission may occur based on a corresponding change in the load. For example, the change in wireless power transmission and the corresponding change in the load may occur in relation to a synchronization event.Type: ApplicationFiled: August 9, 2021Publication date: August 31, 2023Inventors: Jayanti Ganesh, Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Joginder Yadav
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Patent number: 11685269Abstract: A detection device includes a detection mat having a plurality of detection coils, and at least one pair of groups of detection coils, the pair of groups of detection coils includes first and second groups of detection coils. The first and second group of detection coils comprises first and second first and second impedance values. The detection device includes one or more drive sub-systems and a comparison sub-system. The drive sub-systems are operatively coupled to the detection mat and configured to excite at least one pair of groups of detection coils. The comparison sub-system is operatively coupled to the detection mat and configured to receive a differential current signal from the pair of groups of detection coils, the comparison subsystem is configured to generate a control signal based on the differential current signal.Type: GrantFiled: April 17, 2019Date of Patent: June 27, 2023Assignee: General Electric CompanyInventors: Viswanathan Kanakasabai, Deepak Aravind, Suma Memana Narayana Bhat, Adnan Kutubuddin Bohori
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Patent number: 11689056Abstract: A transmitting assembly (114, 214, 334) configured to transmit electric power in a universal wireless charging device (102, 200, 302) is presented. The transmitting assembly (114, 214, 334) includes a first coil (116, 216, 316) embedded in a printed circuit board (220) and configured to transmit a first AC voltage signal having a first frequency. Also, the transmitting assembly (114, 214, 334) includes a second coil (118, 218, 318) disposed on the printed circuit board (220) and configured to transmit a second AC voltage signal having a second frequency, wherein the second frequency is different from the first frequency, and wherein the first AC voltage signal having the first frequency and the second AC voltage signal having the second frequency are used to wirelessly charge a plurality of receiver devices (104, 106) having different frequency standards.Type: GrantFiled: May 21, 2018Date of Patent: June 27, 2023Assignee: General Electric CompanyInventors: Suma Memana Narayana Bhat, Viswanathan Kanakasabai, Arun Kumar Raghunathan, Rahul Bhujade, Satishbabu Bhogineni, Somakumar Ramachandrapanicker
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Patent number: 11670449Abstract: A receiver unit of a wireless power transfer system is presented. The receiver unit includes a main receiver coil, a plurality of auxiliary receiver coils disposed about a central axis of the main receiver coil, and a receiver drive subunit. The receiver drive subunit includes a main converter operatively coupled to the main receiver coil and having a main output terminal. The receiver drive subunit may include a plurality of auxiliary converters operatively coupled to the plurality of auxiliary receiver coils. The plurality of auxiliary converters may be operatively coupled to each other to form an auxiliary output terminal coupled in series to the main output terminal to form a common output terminal. In some implementations, the receiver drive unit may be formed on a substrate of an integrated electronic component. The integrated electronic component may further include a communication subunit and a controller disposed.Type: GrantFiled: April 21, 2022Date of Patent: June 6, 2023Assignee: General Electric CompanyInventors: Viswanathan Kanakasabai, Deepak Aravind, Suma Memana Narayana Bhat, Adnan Kutubuddin Bohori
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Patent number: 11616399Abstract: A wireless charging device includes a driver unit configured to generate one of a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Also, the wireless charging device includes a transmitting unit having a first coil and a first capacitor and configured to transmit the first AC voltage signal. Further, the transmitting unit includes a second coil and a second capacitor and configured to transmit the second AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a first receiver device operating at the first frequency based on a change in a first voltage in the transmitting unit, and detect a second receiver device operating at the second frequency based on a change in a second voltage in the transmitting unit.Type: GrantFiled: April 19, 2018Date of Patent: March 28, 2023Assignee: General Electric CompanyInventors: Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Arun Kumar Raghunathan, Rahul Bhujade, Satishbabu Bhogineni, Somakumar Ramachandrapanicker
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Patent number: 11588349Abstract: A wireless charging device includes a driver unit configured to generate one of a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Also, the wireless charging device includes a transmitting unit having a first coil and a first capacitor and configured to transmit the first AC voltage signal. Further, the transmitting unit includes a second coil and a second capacitor and configured to transmit the second AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a first receiver device operating at the first frequency based on a change in a first voltage in the transmitting unit, and detect a second receiver device operating at the second frequency based on a change in a second voltage in the transmitting unit.Type: GrantFiled: April 19, 2018Date of Patent: February 21, 2023Assignee: General Electric CompanyInventors: Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Arun Kumar Raghunathan, Rahul Bhujade, Satishbabu Bhogineni, Somakumar Ramachandrapanicker
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Publication number: 20220385112Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for wireless power transmission. A wireless power receiving apparatus may be configured to combine power from multiple wireless power signals. In some implementations, the wireless power receiving apparatus may combine wireless power received from multiple secondary coils to provide a combined wireless power signal to a load, such as a battery charger or electronic device. In some implementations, each set of primary coil and secondary coil may utilize low power wireless power signals (such as 15 Watts or less) in accordance with a wireless charging standard. By combining power from multiple low power wireless power signals, the wireless power receiving apparatus may support higher power requirements of an electronic device. The disclosed designs may minimize electromagnetic interference (EMI) and provide greater efficiency of wireless power transfer.Type: ApplicationFiled: November 10, 2020Publication date: December 1, 2022Inventors: Viswanathan Kanakasabai, Suma Memana Narayana Bhat, Jayanti Ganesh, Rupam Basak