Patents by Inventor Vishnu Mohan
Vishnu Mohan 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: 12700806Abstract: A system includes four primary-side switches of a primary bridge of a dual active bridge (DAB) converter, four secondary-side switches of a secondary bridge of the DAB converter, and control circuitry configured to operate the DAB converter in a first mode, where all of the four secondary-side switches operate under zero voltage switching (ZVS) and less than all of the four primary-side switches operate under ZVS, and, in response to a thermal condition, operate the DAB converter in a second mode, where less than all of the four secondary-side switches operate under ZVS and all of the four primary-side switches operate under ZVS. A method includes operating the control circuitry of the system to implement the first and second modes. In some embodiments, the control circuitry toggles between the first and second modes based on one or more thermal conditions.Type: GrantFiled: August 19, 2024Date of Patent: August 4, 2026Assignee: Rivian IP Holdings, LLCInventors: Mohammad Nanda R. Marwali, Zahra Mohajerani, Vishnu Mohan, Vishnu Narayan Vipin
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Publication number: 20260051810Abstract: A system includes four primary-side switches of a primary bridge of a dual active bridge (DAB) converter, four secondary-side switches of a secondary bridge of the DAB converter, and control circuitry configured to operate the DAB converter in a first mode, where all of the four secondary-side switches operate under zero voltage switching (ZVS) and less than all of the four primary-side switches operate under ZVS, and, in response to a thermal condition, operate the DAB converter in a second mode, where less than all of the four secondary-side switches operate under ZVS and all of the four primary-side switches operate under ZVS. A method includes operating the control circuitry of the system to implement the first and second modes. In some embodiments, the control circuitry toggles between the first and second modes based on one or more thermal conditions.Type: ApplicationFiled: August 19, 2024Publication date: February 19, 2026Inventors: Mohammad Nanda R. Marwali, Zahra Mohajerani, Vishnu Mohan, Vishnu Narayan Vipin
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Publication number: 20250266747Abstract: Current sensor compensation is provided. A system can include a charger for an electric vehicle having one or more controllers. A controller can amplify an input signal at a selected frequency to generate a first signal. A controller can amplify a direct current component of the input signal to generate a second signal. A component of the charger can generate a reference signal for input into a current sensor of the charger. The reference signal can be based on a combination of the first signal and the second signal.Type: ApplicationFiled: May 9, 2025Publication date: August 21, 2025Applicant: Rivian IP Holdings, LLCInventors: Mohammad Nanda Rahmana Marwali, Yanjun Shi, Zahra Mohajerani, Vishnu Mohan
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Patent number: 12323040Abstract: Current sensor compensation is provided. A system can include a charger for an electric vehicle having one or more controllers. A controller can amplify an input signal at a selected frequency to generate a first signal. A controller can amplify a direct current component of the input signal to generate a second signal. A component of the charger can generate a reference signal for input into a current sensor of the charger. The reference signal can be based on a combination of the first signal and the second signal.Type: GrantFiled: December 19, 2022Date of Patent: June 3, 2025Assignee: Rivian IP Holdings, LLCInventors: Mohammad Nanda Rahmana Marwali, Yanjun Shi, Zahra Mohajerani, Vishnu Mohan
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Patent number: 12291578Abstract: A method of treating a disease associated with imbalanced or abnormal activity of MMP-7 is diclosed. The method comprises administration of an antibody comprising an antigen recognition region which binds a catalytic site of MMP-7, having complementarity determining region amino acid sequences as set forth in: SEQ ID NOs: 3, 4 and 5 (CDR3), sequentially arranged from N to C on a light chain of the antibody; and SEQ ID NOs: 6, 7 and 8, sequentially arranged from N to C on a heavy chain of the antibody.Type: GrantFiled: February 10, 2020Date of Patent: May 6, 2025Assignee: Yeda Research and Development Co. Ltd.Inventors: Irit Sagi, Vishnu Mohan
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Publication number: 20240204642Abstract: Current sensor compensation is provided. A system can include a charger for an electric vehicle having one or more controllers. A controller can amplify an input signal at a selected frequency to generate a first signal. A controller can amplify a direct current component of the input signal to generate a second signal. A component of the charger can generate a reference signal for input into a current sensor of the charger. The reference signal can be based on a combination of the first signal and the second signal.Type: ApplicationFiled: December 19, 2022Publication date: June 20, 2024Applicant: Rivian IP Holdings, LLCInventors: Mohammad Nanda Rahmana Marwali, Yanjun Shi, Zahra Mohajerani, Vishnu Mohan
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Publication number: 20240178679Abstract: Controlling reverse in-rush current for vehicle chargers is provided. A system can include a controller to determine a first value of voltage. The voltage can be of or associated with a DC link of a charger to output power to a battery of an electric vehicle. The controller can detect an in-rush current from the battery to the charger. The detection can be responsive to the first value of voltage at the DC link being greater than a reference value of voltage established for the DC link.Type: ApplicationFiled: November 29, 2022Publication date: May 30, 2024Inventors: Vishnu Mohan, Zahra Mohajerani
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Patent number: 11870352Abstract: Systems and methods for controlling a dual active bridge converter are disclosed herein. An output voltage of a dual active bridge converter is sensed. Based at least in part on the output voltage, a target intra-bridge phase shift amount between two bridges of the dual active bridge converter is computed. A plurality of switch control signals, which are provided to respective switches of the dual active bridge converter, are caused to switch according to a time-based switching sequence based on the target intra-bridge phase shift amount to compensate for variations in the output voltage.Type: GrantFiled: June 8, 2021Date of Patent: January 9, 2024Assignee: Rivian IP Holdings, LLCInventors: Vishnu Mohan, Younes Sangsefidi, Chia-Chou Yeh, Yang Liu, Steven Schulz
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Patent number: 11841109Abstract: A method using a specially configured computer display support structure reduces occurrences of medical errors by facilitating real-time, synchronous review of medical data by rounding professionals during patient rounds. The support structure includes an upright column assembly that has a column assembly base and six sides. Mounting brackets fixed to non-contiguous sides of the column assembly receive back plates of a system device mounting assembly, each of which includes a pivot arm that receives a system device arm. The system device arm is pivotable at opposing ends and terminates in a coupling member at its distal end. The coupling member is connected to a video display that has an angularly positionable display screen. In some embodiments, a keyboard tray, on which a keyboard and computer mouse rest, is connected to the coupling member.Type: GrantFiled: July 28, 2020Date of Patent: December 12, 2023Assignee: Oregon Health & Science UniversityInventors: Jeffrey A Gold, Vishnu Mohan
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Publication number: 20220399819Abstract: Systems and methods for controlling a dual active bridge converter are disclosed herein. An output voltage of a dual active bridge converter is sensed. Based at least in part on the output voltage, a target intra-bridge phase shift amount between two bridges of the dual active bridge converter is computed. A plurality of switch control signals, which are provided to respective switches of the dual active bridge converter, are caused to switch according to a time-based switching sequence based on the target intra-bridge phase shift amount to compensate for variations in the output voltage.Type: ApplicationFiled: June 8, 2021Publication date: December 15, 2022Inventors: Vishnu Mohan, Younes Sangsefidi, Chia-Chou Yeh, Yang Liu, Steven Schulz
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Patent number: 11522437Abstract: Various disclosed embodiments include illustrative controller modules, direct current (DC) fast charging devices, and methods. In an illustrative embodiment, a controller module for a DC-DC converter includes a controller and computer-readable media configured to store computer-executable instructions configured to cause the controller to: receive an input voltage, an output voltage, and a requested power value.Type: GrantFiled: August 25, 2021Date of Patent: December 6, 2022Assignee: Rivian IP Holdings, LLCInventors: Younes Sangsefidi, Vishnu Mohan, Kang Wang, Chou Yeh
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Publication number: 20220106405Abstract: An antibody comprising an antigen recognition region which binds a catalytic site of MMP-7, having complementarity determining region (CDR) amino acid sequences as set forth in: SEQ ID NOs: 3 (CDR1), 4 (CDR2) and 5 (CDR3), sequentially arranged from N to C on a light chain of the antibody; and SEQ ID NOs: 6 (CDR1), 7 (CDR2) and 8 (CDR3), sequentially arranged from N to C on a heavy chain of the antibody.Type: ApplicationFiled: February 10, 2020Publication date: April 7, 2022Applicant: Yeda Research and Development Co. Ltd.Inventors: Irit SAGI, Vishnu MOHAN
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Publication number: 20210033243Abstract: A method using a specially configured computer display support structure reduces occurrences of medical errors by facilitating real-time, synchronous review of medical data by rounding professionals during patient rounds. The support structure includes an upright column assembly that has a column assembly base and six sides. Mounting brackets fixed to non-contiguous sides of the column assembly receive back plates of a system device mounting assembly, each of which includes a pivot arm that receives a system device arm. The system device arm is pivotable at opposing ends and terminates in a coupling member at its distal end. The coupling member is connected to a video display that has an angularly positionable display screen. In some embodiments, a keyboard tray, on which a keyboard and computer mouse rest, is connected to the coupling member.Type: ApplicationFiled: July 28, 2020Publication date: February 4, 2021Inventors: Jeffrey A Gold, Vishnu Mohan