Patents by Inventor Hongcheng XU

Hongcheng XU 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).

  • Publication number: 20230299677
    Abstract: A power conversion circuit includes a transconductance amplifier circuit, a current limiting circuit, and a controller. The transconductance amplifier circuit is configured to provide a first output current at a first output based on a differential between a first voltage at the first input and a second voltage at a second input. The current limiting circuit is configured to provide a second output current at the second output that is an input current at a third input limited to no greater than the first output current. The controller is configured to control first and second switches during a time period where the power conversion circuit transitions between an active mode and a skip mode.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Inventors: Hongcheng Xu, Michael Schlenker, Konrad Wagensohner
  • Publication number: 20230299675
    Abstract: Described embodiments include a circuit with a first amplifier having first and second amplifier inputs and a first amplifier output. The first amplifier input is coupled to a reference voltage terminal. The second amplifier input is coupled to a voltage feedback terminal. A second amplifier has third and fourth amplifier inputs and second and third amplifier outputs. The third amplifier input is coupled to the first amplifier output. A first switch has first and second switch terminals. The second switch terminal is coupled to the fourth amplifier input. A third amplifier has fifth and sixth amplifier inputs and a fourth amplifier output. The fifth amplifier input is coupled to the second amplifier output. The sixth amplifier input is coupled to the third amplifier output. A second switch has a third switch terminal coupled to the fourth amplifier output, and a fourth switch terminal coupled to the first amplifier output.
    Type: Application
    Filed: February 16, 2023
    Publication date: September 21, 2023
    Inventors: Hongcheng Xu, Konrad Wagensohner, Michael Schlenker
  • Patent number: 11515785
    Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first transistor, a second transistor, a third transistor, a first capacitor, and a second capacitor. The first transistor comprises a drain terminal coupled to an input voltage node, a source terminal coupled to a first node, and a gate terminal coupled to a second node. The second transistor comprises a drain terminal coupled to a third node, a source terminal coupled to a fourth node, and a gate terminal coupled to a fifth node. The third transistor comprises a drain terminal coupled to a sixth node, a source terminal configured to couple to a gate terminal of a switching transistor, and a gate terminal coupled to a seventh node. The first capacitor is coupled between the first node and the third node. The second capacitor is coupled between the fourth node and the sixth node.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: November 29, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Pavol Balaz, Hongcheng Xu, Ferdinand Stettner
  • Publication number: 20210328508
    Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first transistor, a second transistor, a third transistor, a first capacitor, and a second capacitor. The first transistor comprises a drain terminal coupled to an input voltage node, a source terminal coupled to a first node, and a gate terminal coupled to a second node. The second transistor comprises a drain terminal coupled to a third node, a source terminal coupled to a fourth node, and a gate terminal coupled to a fifth node. The third transistor comprises a drain terminal coupled to a sixth node, a source terminal configured to couple to a gate terminal of a switching transistor, and a gate terminal coupled to a seventh node. The first capacitor is coupled between the first node and the third node. The second capacitor is coupled between the fourth node and the sixth node.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Inventors: Pavol Balaz, Hongcheng Xu, Ferdinand Stettner
  • Patent number: 11095215
    Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first transistor, a second transistor, a third transistor, a first capacitor, and a second capacitor. The first transistor comprises a drain terminal coupled to an input voltage node, a source terminal coupled to a first node, and a gate terminal coupled to a second node. The second transistor comprises a drain terminal coupled to a third node, a source terminal coupled to a fourth node, and a gate terminal coupled to a fifth node. The third transistor comprises a drain terminal coupled to a sixth node, a source terminal configured to couple to a gate terminal of a switching transistor, and a gate terminal coupled to a seventh node. The first capacitor is coupled between the first node and the third node. The second capacitor is coupled between the fourth node and the sixth node.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 17, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Pavol Balaz, Hongcheng Xu, Ferdinand Stettner
  • Patent number: 10990766
    Abstract: The present disclosure relates to template data processing, template data requesting, and template data presenting methods and devices, and a storage medium. The method includes obtaining a template subject and template key words matching the template subject and generating, according to the template key words, a first template message matching the template subject. The first template message includes the template key words. The method also includes generating a template identifier corresponding to the first template message and associating the template identifier with the corresponding first template message. The method further includes storing the template identifier and the corresponding first template message into a template library.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: April 27, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hongcheng Xu, Junwei Zheng, Hao Chen, Xing Lin, Hongqiang Chen, Weijian Chen, Wei Li, Xialun Lai, Tianzhi Liang, Zehao Zhang, Cunjin Li, Zhaowei Wang, Haitian Peng
  • Publication number: 20200169168
    Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first transistor, a second transistor, a third transistor, a first capacitor, and a second capacitor. The first transistor comprises a drain terminal coupled to an input voltage node, a source terminal coupled to a first node, and a gate terminal coupled to a second node. The second transistor comprises a drain terminal coupled to a third node, a source terminal coupled to a fourth node, and a gate terminal coupled to a fifth node. The third transistor comprises a drain terminal coupled to a sixth node, a source terminal configured to couple to a gate terminal of a switching transistor, and a gate terminal coupled to a seventh node. The first capacitor is coupled between the first node and the third node. The second capacitor is coupled between the fourth node and the sixth node.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 28, 2020
    Inventors: Pavol BALAZ, Hongcheng XU, Ferdinand STETTNER
  • Publication number: 20190213262
    Abstract: The present disclosure relates to template data processing, template data requesting, and template data presenting methods and devices, and a storage medium. The method includes obtaining a template subject and template key words matching the template subject and generating, according to the template key words, a first template message matching the template subject. The first template message includes the template key words. The method also includes generating a template identifier corresponding to the first template message and associating the template identifier with the corresponding first template message. The method further includes storing the template identifier and the corresponding first template message into a template library.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 11, 2019
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Hongcheng XU, Junwei ZHENG, Hao CHEN, Xing LIN, Hongqiang CHEN, Weijian CHEN, Wei LI, Xialun LAI, Tianzhi LIANG, Zehao ZHANG, Cunjin LI, Zhaowei WANG, Haitian PENG