Patents by Inventor Chenhao Nan

Chenhao Nan 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).

  • Patent number: 12242326
    Abstract: The technology is generally directed to a coordinated power throttling mechanism for a payload using power provided by a rack such that the rack power does not exceed a threshold amount for greater than a predetermined period of time. The coordinated power throttling mechanism includes the rack providing a power throttling signal to the payload and the payload executing the power throttling upon detection of the throttling signal. The payload may detect the throttling signal and, after a delay, execute the power throttling. The delay may ensure that all payloads within the rack have detected the power throttling signal.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: March 4, 2025
    Assignee: Google LLC
    Inventors: Xiong Li, Xin Li, Qiong Wang, Kaushik Vaidyanathan, Chenhao Nan, Robert Ashby Armistead, III
  • Patent number: 12159738
    Abstract: The subject matter described herein provides systems and techniques for the integration of TLVR technology in a vertical power VR module. A multiple-secondary TLVR topology using a controlled leakage inductance in the place of a separate compensation inductor, Lc, may be employed for the vertical power VR module. In addition, the capacitance inside the device to which the TLVR based vertical power VR module supplies power, rather than an output capacitance board, may be used in order to allow the module to be a single layer. Example structures that may include one or more primary windings and/or one or more secondary windings for each of possibly multiple linked phases of the TLVR based module are provided. The windings may be formed using traditional copper windings or printed circuit board (PCB) copper trace winding.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: December 3, 2024
    Assignee: Google LLC
    Inventors: Chenhao Nan, Houle Gan, Runruo Chen, Qiong Wang, Xin Li
  • Publication number: 20240396447
    Abstract: The subject matter described herein provides systems and techniques for the integration of Trans-Induction Voltage regulator (TLVR) technology in a vertical power Voltage Regulator (VR) module. The capacitance inside the device to which the TLVR based vertical power VR module supplies power, rather than an output capacitance board, may be used in order to allow the module to be a single layer. In some instances, output capacitors may be integrated into components of the structures to provide adequate operational capacitance previously provided by the output capacitance board. Example structures may also include a controller.
    Type: Application
    Filed: May 22, 2023
    Publication date: November 28, 2024
    Inventors: Shuai Jiang, Chenhao Nan, Houle Gan, Qiong Wang
  • Publication number: 20240395453
    Abstract: The subject matter described herein provides systems and techniques for the integration of TLVR technology in a vertical power VR module. A multiple-secondary TLVR topology using a controlled leakage inductance in the place of a separate compensation inductor, Lc, may be employed for the vertical power VR module. In addition, the capacitance inside the device to which the TLVR based vertical power VR module supplies power, rather than an output capacitance board, may be used in order to allow the module to be a single layer. Example structures that may include one or more primary windings and/or one or more secondary windings for each of possibly multiple linked phases of the TLVR based module are provided. The windings may be formed using traditional copper windings or printed circuit board (PCB) copper trace winding.
    Type: Application
    Filed: August 8, 2024
    Publication date: November 28, 2024
    Inventors: Chenhao Nan, Houle Gan, Runruo Chen, Qiong Wang, Xin Li
  • Publication number: 20240290763
    Abstract: A pluggable processor module includes a microprocessor package, a voltage regulator including a capacitor board, and contact pads that each include a first side in contact with the microprocessor package and a second side in contact with the capacitor board.
    Type: Application
    Filed: May 9, 2024
    Publication date: August 29, 2024
    Inventors: Houle Gan, Richard Stuart Roy, Yujeong Shim, William F. Edwards, JR., Chenhao Nan
  • Patent number: 12002795
    Abstract: A pluggable processor module includes a microprocessor package, a voltage regulator including a capacitor board, and contacts that each include a first side in contact with the microprocessor package and a second side in contact with the capacitor board. An assembly includes the pluggable processor module and a printed circuit board assembly (“PCBA”) including a module aperture that is large enough to receive the power board and narrower than the capacitor board.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: June 4, 2024
    Assignee: Google LLC
    Inventors: Houle Gan, Richard Stuart Roy, Yujeong Shim, William F. Edwards, Jr., Chenhao Nan
  • Publication number: 20240120847
    Abstract: A voltage regulator having a multiple of main stages and at least one accelerated voltage regulator (AVR) bridge is provided. The main stages may respond to low frequency current transients and provide DC output voltage regulation. The AVR bridges are switched much faster than the main stages and respond to high frequency current transients without regulating the DC output voltage. The AVR bridge frequency response range can overlap with the main stage frequency response range, and the lowest frequency to which the AVR bridges respond may be set lower than the highest frequency to which the main stages respond.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Inventors: Shuai Jiang, Xin Li, Woon-Seong Kwon, Cheng Chung Yang, Qiong Wang, Nam Hoon Kim, Mikhail Popovich, Houle Gan, Chenhao Nan
  • Publication number: 20240094799
    Abstract: The technology is generally directed to a coordinated power throttling mechanism for a payload using power provided by a rack such that the rack power does not exceed a threshold amount for greater than a predetermined period of time. The coordinated power throttling mechanism includes the rack providing a power throttling signal to the payload and the payload executing the power throttling upon detection of the throttling signal. The payload may detect the throttling signal and, after a delay, execute the power throttling. The delay may ensure that all payloads within the rack have detected the power throttling signal.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 21, 2024
    Inventors: Xiong Li, Xin Li, Qiong Wang, Kaushik Vaidyanathan, Chenhao Nan, Robert Ashby Armistead, III
  • Publication number: 20230335541
    Abstract: A pluggable processor module includes a microprocessor package, a voltage regulator including a capacitor board, and contact pads that each include a first side in contact with the microprocessor package and a second side in contact with the capacitor board.
    Type: Application
    Filed: April 13, 2022
    Publication date: October 19, 2023
    Inventors: Houle Gan, Richard Stuart Roy, Yujeong Shim, William F. Edwards, JR., Chenhao Nan
  • Publication number: 20230318456
    Abstract: Controlling voltage supplied to a load includes predicting a load current transient, generating a turbo signal in response to predicting the load current transient, and increasing, in response to the turbo signal, responsiveness of a voltage regulator supplying voltage to the load.
    Type: Application
    Filed: April 4, 2022
    Publication date: October 5, 2023
    Applicant: Google LLC
    Inventors: Chenhao Nan, Qiong Wang, Kaushik Vaidyanathan, Houle Gan, Xin Li
  • Publication number: 20220415558
    Abstract: The subject matter described herein provides systems and techniques for the integration of TLVR technology in a vertical power VR module. A multiple-secondary TLVR topology using a controlled leakage inductance in the place of a separate compensation inductor, Lc, may be employed for the vertical power VR module. In addition, the capacitance inside the device to which the TLVR based vertical power VR module supplies power, rather than an output capacitance board, may be used in order to allow the module to be a single layer. Example structures that may include one or more primary windings and/or one or more secondary windings for each of possibly multiple linked phases of the TLVR based module are provided. The windings may be formed using traditional copper windings or printed circuit board (PCB) copper trace winding.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Chenhao Nan, Houle Gan, Runruo Chen, Qiong Wang, Xin Li
  • Patent number: 9966842
    Abstract: At least one aspect is directed to a power supply. The power supply includes one or more unregulated voltage converters. Each unregulated voltage converter includes a switched block producing an output voltage across its output terminals. The power supply includes a voltage supply input coupled to at least one of the unregulated voltage converters, and an unregulated voltage bus coupled to at least one of the unregulated voltage converters. The power supply includes a voltage regulator coupled to the unregulated voltage bus and producing a regulated voltage across its output terminals. The output terminals of the voltage regulator are connected in parallel to the output terminals of at least one of the unregulated voltage converters. This can produce a regulated output voltage across a pair of power supply output terminals.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 8, 2018
    Assignee: Google LLC
    Inventors: Shuai Jiang, Chenhao Nan, Xin Li, Chee Chung, Mobashar Yazdani