Patents by Inventor Dong Dong

Dong Dong 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: 12283903
    Abstract: A multi-three-phase motor drive system includes a power distribution network, a motor drive unit, and a motor network. The power distribution network includes a partitioned direct current (DC) link connected between a positive voltage rail and a negative voltage rail. A connection between the positive voltage rail and a mid-point node defines an upper portion of the partitioned DC link and a connection between negative voltage rail and the mid-point node defines a lower portion of the partitioned DC link. The motor drive unit includes a plurality of inverter units, and the motor network includes a plurality of motor windings which are each connected to a respective inverter unit. A first group of the inverter units is connected in parallel with the upper portion of the portioned DC link, and a second group of the inverter units is connected in parallel with the lower portion of the partitioned DC link.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: April 22, 2025
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Boran Fan, Jagadeesh K. Tangudu, Rolando Burgos, Vladimir Blasko, Dong Dong
  • Publication number: 20250047206
    Abstract: Power converters including electronic-embedded transformers for current sharing and load-independent voltage gain are described. An example power converter system includes an input, an output, a power converter between the input and output, and a controller. The converter includes a first bridge, a second bridge, and an electronic-embedded transformer (EET) between the first and second bridge. The EET includes a capacitor and a capacitance coupling switch bridge. The controller generates phasing drive control signals for trapezoidal current modulation control of the capacitance coupling switch bridge of the EET. The controller is configured to generate the phasing drive control signals based on a phase shift coefficient, k, to set a duty cycle of a voltage from the capacitance coupling switch bridge. The controller is also configured to vary k from between 0 to 0.5 based on a load applied to the power converter system or other operating aspects of the power converter.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 6, 2025
    Inventors: Yuliang Cao, Dong Dong
  • Publication number: 20250047188
    Abstract: Power converters including electronic-embedded transformers for current sharing and load-independent voltage gain are described. An example power converter system includes an input, an output, a power converter between the input and output, and a controller. The converter includes a first bridge, a second bridge, and an electronic-embedded transformer between the first and second bridge. The electronic-embedded transformer includes a bidirectional coupling switch bridge. The controller generates drive control signals for quasi-trapezoidal current modulation control of the bidirectional coupling switch bridge. The controller is configured to generate the drive control signals based on a commutation coefficient k and a switching frequency for the power converter. The commutation coefficient k can be set based on an inductance in the electronic-embedded transformer, a capacitance in the bidirectional coupling switch bridge, and a margin for resonant current commutation.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 6, 2025
    Inventors: Yuliang Cao, Dong Dong
  • Patent number: 12176171
    Abstract: Gate control of power semiconductor devices using reduced gate drivers is disclosed. A circuit breaker may include a multitude of transistors, such as insulated gate bipolar transistors (IGBTs), connected in series with one another. Each transistor may be connected to a respective gate resistor. Diodes may be connected between various gate resistors. One or more resistor-capacitor (RC) snubber circuits may be provided in parallel with one or more of the transistors. Likewise, one or more metal-oxide varistors (MOVs) may be connected in parallel to one or more of the transistors. A gate driver (e.g., a single gate drive) may be connected to the one or more diodes and an emitter of at least one of transistors.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: December 24, 2024
    Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: Jian Liu, Lakshmi Ravi, Dong Dong, Rolando Burgos, Steven Schmalz
  • Patent number: 12147671
    Abstract: A performance match method of memory, a memory storage device and a memory control circuit unit are disclosed. The method includes: receiving a performance match command from a host system; in response to the performance match command, adjusting an operation setting of a memory storage device to match a performance of the memory storage device with a performance requirement of the host system; and interacting with the host system based on the adjusted operation setting.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: November 19, 2024
    Assignee: Hefei Core Storage Electronic Limited
    Inventors: Chih-Ling Wang, Dong Dong Yao, Yun Peng Zhang, Kuai Cao, En Yang Wang, Wen Qing Lv
  • Patent number: 12147674
    Abstract: A memory control method, a memory storage device and a memory control circuit unit are provided. The method includes: setting preset read count thresholds corresponding to physical erasing units respectively; in a background operation, in response to a read count of a first physical erasing unit in the physical erasing units being greater than its corresponding preset read count threshold, reading word lines in the first physical erasing unit to obtain first error bit amounts; determining whether a refresh operation needs to be performed on the first physical erasing unit according to first error bit amounts; in response to no need to perform the refresh operation on the first physical erasing unit, selecting a first word line with the largest first error bit amount in the word lines, and detecting a voltage distribution variation of the first word line; and calculating a new read count threshold of the first physical erasing unit according to the voltage distribution variation.
    Type: Grant
    Filed: July 1, 2024
    Date of Patent: November 19, 2024
    Assignee: Hefei Core Storage Electronic Limited
    Inventors: Chih-Ling Wang, Dong Dong Yao, Kuai Cao
  • Patent number: 12132408
    Abstract: Power converters including electronic-embedded transformers for current sharing and load-independent voltage gain are described. In one example, a power converter system includes an input, an output, a power converter between the input and output, and a controller. The converter includes a first bridge, a second bridge, and an electronic-embedded transformer (EET) between the first and second bridge. The EET includes a capacitor and a capacitance coupling switch bridge. The controller generates switching control signals for the first and second bridges and phasing drive control signals for the capacitance coupling switch bridge in the EET. The controller applies a phase shift to the phasing drive control signals for the EET as compared to the switching control signals for the first and second bridges, so that the voltage across the capacitor in the EET cancels the leakage inductance of the transformer windings in the EET, at any switching frequency.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: October 29, 2024
    Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: Yuliang Cao, Dong Dong
  • Patent number: 12099753
    Abstract: A mapping table updating method, a memory storage device and a memory control circuit unit are disclosed. The method includes: receiving, a plurality of operation commands from a host system; performing a first table updating operation according to a first operation command and a third operation command among the operation commands to read and update a first sub-mapping table and a third sub-mapping table from a rewritable non-volatile memory module; and after the first table updating operation is finished, performing a second table updating operation according to a second operation command among the operation commands to read and update a second sub-mapping table from the rewritable non-volatile memory module.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: September 24, 2024
    Assignee: Hefei Core Storage Electronic Limited
    Inventors: Chih-Ling Wang, Ya Jie Guo, En Yang Wang, Kuai Cao, Dong Dong Yao, Yun Peng Zhang
  • Publication number: 20240309147
    Abstract: Disclosed herein is a two-component system for preparing deodorant polyurethane foams, which system includes component A including (b) at least one compound having at least two hydrogen atoms reactive toward isocyanates, (c) optionally chain extender and/or crosslinking agent, (d) blowing agent, (e) catalyst, and (f) optionally auxiliaries and additives, and component B including (a) at least one polyisocyanate, and (g) at least one anhydride. Further disclosed herein are a method of preparing deodorant polyurethane foams by the two-component system and a method of using such polyurethane foams in certain applications.
    Type: Application
    Filed: January 17, 2022
    Publication date: September 19, 2024
    Inventors: Dong Dong PAN, Yinghao LIU, Hui QIU, Lu LIU, Zhen Jia CHEN
  • Publication number: 20240289051
    Abstract: A mapping table updating method, a memory storage device and a memory control circuit unit are disclosed. The method includes: receiving, a plurality of operation commands from a host system; performing a first table updating operation according to a first operation command and a third operation command among the operation commands to read and update a first sub-mapping table and a third sub-mapping table from a rewritable non-volatile memory module; and after the first table updating operation is finished, performing a second table updating operation according to a second operation command among the operation commands to read and update a second sub-mapping table from the rewritable non-volatile memory module.
    Type: Application
    Filed: March 27, 2023
    Publication date: August 29, 2024
    Applicant: Hefei Core Storage Electronic Limited
    Inventors: Chih-Ling Wang, Ya Jie Guo, En Yang Wang, Kuai Cao, Dong Dong Yao, Yun Peng Zhang
  • Publication number: 20240289017
    Abstract: A performance match method of memory, a memory storage device and a memory control circuit unit are disclosed. The method includes: receiving a performance match command from a host system; in response to the performance match command, adjusting an operation setting of a memory storage device to match a performance of the memory storage device with a performance requirement of the host system; and interacting with the host system based on the adjusted operation setting.
    Type: Application
    Filed: March 27, 2023
    Publication date: August 29, 2024
    Applicant: Hefei Core Storage Electronic Limited
    Inventors: Chih-Ling Wang, Dong Dong Yao, Yun Peng Zhang, Kuai Cao, En Yang Wang, Wen Qing Lv
  • Publication number: 20240275286
    Abstract: Provided is a power converter that includes at least one leg having a first string that includes a plurality of switching units, a plurality of unidirectional current switches, a first connecting node, and a second connecting node, such that the first string is operatively coupled across a first and a second bus, and a second string operatively coupled to the first string via the first connecting node and the second connecting node such that the second string includes a plurality of unidirectional current switches and a fourth connecting node operatively coupled to a fourth bus. The power converter also includes a controller configured to control switching of the plurality of switching units.
    Type: Application
    Filed: February 10, 2023
    Publication date: August 15, 2024
    Inventors: Zhi ZHOU, Jian LIU, Jayesh Kumar MOTWANI, Dong DONG, Rolando BURGOS
  • Publication number: 20240231901
    Abstract: A job processing method is provided. In this method, after receiving a to-be-processed job, a scheduling node in a high-performance computing system predicts, based on a category of the job, a quantity of resources consumed in real time in a process of executing the job. Because quantities of resources consumed in real time in a process of executing jobs of a same category are close, compared with a specified resource quantity, a predicted resource quantity is closer to a quantity of resources actually consumed by the job.
    Type: Application
    Filed: December 29, 2023
    Publication date: July 11, 2024
    Inventors: Shoufeng Hu, Bo Zhu, Jin Guo, Dong Dong
  • Publication number: 20240134688
    Abstract: A job processing method is provided. In this method, after receiving a to-be-processed job, a scheduling node in a high-performance computing system predicts, based on a category of the job, a quantity of resources consumed in real time in a process of executing the job. Because quantities of resources consumed in real time in a process of executing jobs of a same category are close, compared with a specified resource quantity, a predicted resource quantity is closer to a quantity of resources actually consumed by the job.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Shoufeng Hu, Bo Zhu, Jin Guo, Dong Dong
  • Publication number: 20240124409
    Abstract: The present application discloses a class of guaianolide sesquiterpene lactone derivatives and pharmaceutical use thereof. The guaianolide sesquiterpene lactone derivative or a pharmaceutically acceptable salt thereof is shown as general formula I. In the present application, a class of novel guaianolide sesquiterpene lactone derivatives are found by structural optimization with abundant natural ingredients such as parthenolide and dehydrocostus lactone as raw materials, which derivatives have good inhibitory activity on the activation of the NLRP3 inflammasome, and the chemical stability, water solubility and oral bioavailability of which are significantly improved, and it is verified by experiments that the derivatives have inhibitory effects on the activity of the NLRP3 inflammasome and have potential pharmaceutical applications.
    Type: Application
    Filed: November 26, 2023
    Publication date: April 18, 2024
    Applicant: NANJING UNIVERSITY OF CHINESE MEDICINE
    Inventors: Lihong HU, Jian LIU, Qi LV, Yang HU, Dong DONG, Ping WANG, Meng YANG
  • Publication number: 20240097572
    Abstract: Power systems including converters that exhibit reduced common mode voltage emissions are described. In one example, a power converter system includes an input and an output, a multi-level switch bridge coupled between the input and the output, an input capacitor branch coupled across the input, an output capacitor branch coupled across the output, and a controller configured to generate switching control signals for the multi-level buck-boost switch bridge. The multi-level switch bridge also includes a plurality of inductors in one example. In one case, a quadrangular or quadrangle control mode can be relied upon to switch the multi-level switch bridge, to minimize the ripple in the inductors, achieve zero voltage switching, reduce common mode electromagnetic interference emission by the converter, and for other benefits.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 21, 2024
    Inventors: Yuliang Cao, Yijie Bai, Vladimir Mitrovic, Boran Fan, Dong Dong, Rolando Burgos
  • Publication number: 20240097593
    Abstract: A multi-three-phase motor drive system includes a power distribution network, a motor drive unit, and a motor network. The power distribution network includes a partitioned direct current (DC) link connected between a positive voltage rail and a negative voltage rail. A connection between the positive voltage rail and a mid-point node defines an upper portion of the partitioned DC link and a connection between negative voltage rail and the mid-point node defines a lower portion of the partitioned DC link. The motor drive unit includes a plurality of inverter units, and the motor network includes a plurality of motor windings which are each connected to a respective inverter unit. A first group of the inverter units is connected in parallel with the upper portion of the portioned DC link, and a second group of the inverter units is connected in parallel with the lower portion of the partitioned DC link.
    Type: Application
    Filed: July 14, 2023
    Publication date: March 21, 2024
    Inventors: Boran Fan, Jagadeesh K. Tangudu, Rolando Burgos, Vladimir Blasko, Dong Dong
  • Publication number: 20240055996
    Abstract: Power converters including electronic-embedded transformers for current sharing and load-independent voltage gain are described. In one example, a power converter system includes an input, an output, a power converter between the input and output, and a controller. The converter includes a first bridge, a second bridge, and an electronic-embedded transformer (EET) between the first and second bridge. The EET includes a capacitor and a capacitance coupling switch bridge. The controller generates switching control signals for the first and second bridges and phasing drive control signals for the capacitance coupling switch bridge in the EET. The controller applies a phase shift to the phasing drive control signals for the EET as compared to the switching control signals for the first and second bridges, so that the voltage across the capacitor in the EET cancels the leakage inductance of the transformer windings in the EET, at any switching frequency.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 15, 2024
    Inventors: Yuliang Cao, Dong Dong
  • Publication number: 20240005592
    Abstract: An image rendering method includes: acquiring a project scene, materials of an object in the project scene including a light source material, and the light source material being a material that is endowed with a light source attribute by setting a corresponding shading model to be a custom grid light source shading model; searching object grids with the light source material from the project scene, and performing light source structure conversion on the object grids with the light source material to obtain light source grids, the object grids being grids used for forming the object in the project scene; and using each of the light source grids as a light source, to perform direct illumination rendering on each of pixels of the image representing the project scene, and fusing a direct illumination rendering result of each of the light source grids for each of the pixels to obtain a rendered target image.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 4, 2024
    Inventors: Liming XU, Dong DONG
  • Patent number: 11655042
    Abstract: An electric propulsion system includes at least one generator. The electric propulsion system also includes at least one drive engine coupled to the at least one generator. The electric propulsion system further includes at least one electrical device. The electric propulsion system also includes at least one battery integrated isolated power converter (BIIC), where the at least one generator and at least one of the at least one BIIC and the at least one electrical device are coupled, and where the at least one BIIC and the at least one electrical device are coupled.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 23, 2023
    Assignee: General Electric Company
    Inventors: Dong Dong, Manoj Ramprasad Shah, Rui Zhou, Hao Huang, Di Zhang