Patents by Inventor Xingzhong Zhang

Xingzhong Zhang 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: 20240421100
    Abstract: A package structure includes a first substrate, a second substrate, pins, and a first die. The package structure is connected to a printed circuit board through the pins. The first substrate includes a first routing layer, a first insulation layer, and a first metal layer that are sequentially stacked, and the second substrate includes a second routing layer, a second insulation layer, and a second metal layer that are sequentially stacked. The first metal layer is mechanically and electrically connected to a first part of the second routing layer, and the first metal layer and the first part of the second routing layer are connected to a quiescent point. At least one die is disposed on a surface that is of the first routing layer and that is away from the first metal layer, and a contact point between the die and the first routing layer is a moving point.
    Type: Application
    Filed: August 27, 2024
    Publication date: December 19, 2024
    Inventors: Xingzhong Zhang, Shanwu Chen, Jiebin Cheng, Baoshan Wu, Weiping Song
  • Patent number: 12107496
    Abstract: A converter circuit includes a capacitor module and a balance module. The capacitor module includes at least a first capacitor and a second capacitor. The balance module includes at least a first resonant circuit. The first resonant circuit includes at least two switch groups connected in parallel and a first resonant cavity bridged between the two switch groups. The first capacitor and the second capacitor are connected in series. The first resonant circuit is separately bridged between two ends of the first capacitor and between two ends of the second capacitor. The balance module controls each switch in the first resonant circuit, so that each switch works with the first resonant cavity to affect a current, to balance a voltage between the two ends of the first capacitor and a voltage between the two ends of the second capacitor.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: October 1, 2024
    Assignee: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Haitao Chen, Xingzhong Zhang
  • Publication number: 20240155946
    Abstract: A thermoelectric array display and a manufacturing method thereof are provided. The thermoelectric array display includes at least a first pixel, where the first pixel includes a bottom electrode, a P-type thermoelectric leg, an N-type thermoelectric leg, and a top electrode; the P-type thermoelectric leg is arranged on the bottom electrode; and the P-type thermoelectric leg is connected in series to the N-type thermoelectric leg by the top electrode. The thermoelectric array display has strong concealment of information transmission, can effectively reduce heat generation of a device, and can implement long-distance signal transmission.
    Type: Application
    Filed: November 16, 2022
    Publication date: May 9, 2024
    Applicant: WUHAN UNIVERSITY
    Inventors: Ziyu WANG, Xingzhong ZHANG, Yong LIU, Wei WU, Xiaosa LIANG, Rui XIONG
  • Publication number: 20240079957
    Abstract: A resonant switched capacitor converter includes a control system, a first capacitor, a plurality of resonant systems, and a plurality of second capacitors coupled in series. The first capacitor is coupled in series to the second capacitors. One resonant system corresponds to one second capacitor. Each of the resonant systems includes a first switch system, a resonant circuit, and a second switch system. The control system is coupled to the resonant systems and configured to control, based on a target output voltage gain, switches in the first switch system and the second switch system in each resonant system to be turned on or turned off, to enable the resonant switched capacitor converter to obtain an output voltage gain equal to the target output voltage gain.
    Type: Application
    Filed: November 10, 2023
    Publication date: March 7, 2024
    Inventors: Shousong Ou, Haitao Chen, Xingzhong Zhang
  • Publication number: 20240030830
    Abstract: The present disclosure refers to an alternating current/direct current (AC/DC) converter for an on board charger (OBC). The AC/DC converter includes a three-phase-input comprising three inputs, a single-stage dual-active bridge (DAB) circuit, and an auxiliary circuit. The auxiliary circuit includes two switching means and an energy storage means, the auxiliary circuit also includes at least two branches, wherein each of the at least two branches include one of the switching means. At least one branch of the at least two branches is connected to a single-phase AC input of the three inputs, and another branch of the at least two branches is connected to an input of the three inputs which is not a single-phase AC input, and the another branch comprises the energy storage means.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Inventors: Haitao Chen, Zhixiang Hu, Xingzhong Zhang, Peng Shuai, Eckart Hoene
  • Publication number: 20230299669
    Abstract: A resonant switched capacitor direct current/direct current converter includes N resonant switched capacitor groups, M capacitors, and at least one LC series circuit, where N is an integer greater than or equal to 2, and M is an integer less than or equal to N. Each resonant switched capacitor group includes switches and a resonant circuit. The resonant circuit includes a resonant inductor and a resonant capacitor. The LC series circuit, namely, a circuit including an inductor and a capacitor that are connected in series, is connected between any two resonant switched capacitor groups. At the moment when the switch is turned off, the resonant inductor is not sufficient to implement complete discharging of a junction capacitor of the switch. The inductor is added, to implement complete discharging of the junction capacitor of the switch, that is, to remove a current, so that the switch implements soft switching.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Inventors: Zhengyan HE, Haitao CHEN, Xingzhong ZHANG
  • Publication number: 20230208287
    Abstract: A DC/DC converter and a voltage gain switching method and system. A first resonance unit of the DC/DC converter includes a first terminal and a second terminal connected to a second capacitor unit, and a third terminal and a fourth terminal connected to a first capacitor unit. A second resonance unit of the DC/DC converter includes a first terminal connected to a second terminal of the second capacitor unit, and a second terminal of the second resonance unit connected to a first input/output terminal of the DC/DC converter, a third terminal connected to the ground terminal of the DC/DC converter, and a fourth terminal connected to a first voltage gain changeover switch. The DC/DC converter can improve voltage gain switching efficiency.
    Type: Application
    Filed: February 24, 2023
    Publication date: June 29, 2023
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Haitao CHEN, Xingzhong ZHANG, Zhengdong JIANG
  • Publication number: 20230155488
    Abstract: A conversion circuit includes a capacitor module, a balancing module, and a startup module. The capacitor module includes at least a first capacitor and a second capacitor. The balancing module includes at least a first resonant circuit. The startup module includes a direct current-direct current converter and a target capacitor. The first resonant circuit includes at least two groups of switches and a first resonant cavity. The first capacitor is connected in series to the second capacitor, and connected in parallel to the target capacitor. The first resonant circuit is separately connected to both ends of the first capacitor and the second capacitor by using the startup module. The balancing module balances voltages at both ends of the first capacitor and the second capacitor by controlling the switches in the first resonant circuit. The startup module is configured to start the balancing module and the capacitor module.
    Type: Application
    Filed: January 20, 2023
    Publication date: May 18, 2023
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Haitao CHEN, Xingzhong ZHANG
  • Publication number: 20220321005
    Abstract: A converter circuit is provided in this application, which includes a capacitor module and a balance module. The capacitor module includes at least a first capacitor and a second capacitor. The balance module includes at least a first resonant circuit. The first resonant circuit includes at least two switch groups connected in parallel and a first resonant cavity bridged between the two switch groups. The first capacitor and the second capacitor are connected in series. The first resonant circuit is separately bridged between two ends of the first capacitor and between two ends of the second capacitor. The balance module controls each switch in the first resonant circuit, so that each switch works with the first resonant cavity to affect a current, to balance a voltage between the two ends of the first capacitor and a voltage between the two ends of the second capacitor.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 6, 2022
    Inventors: Haitao CHEN, Xingzhong ZHANG
  • Publication number: 20210064031
    Abstract: A method for path planning for an autonomous or semi-autonomous vehicle. The method including obtaining a drivable area of a surrounding environment of the vehicle, and generating a path within the drivable area for a time step t based on a predefined set of characteristics for the path and a predefined set of constraints. The predefined set of constraints includes at least one constraint based on a current pose of the vehicle.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 4, 2021
    Applicant: Zenuity AB
    Inventors: Takuro MATSUDA, Xingzhong ZHANG
  • Patent number: 8614337
    Abstract: The chiral compound S-5-substituted-N-2?-(thienyl-2-yl-)ethyl-tetralin-2-amine or its chiral acid salts and preparation method thereof are disclosed, and the method for preparing Rotigotine by using the chiral compound is also disclosed. Racemic 5-substituted-N-2?-(thien-2-yl-)ethyl-tetralin-2-amine (compound 1) is resolved by using a conventional chiral acid to obtain an optically pure chiral acid salt of S-5-substituted-N-2?-(thien-2-yl-)ethyl-tetralin-2-amine, which is then dissociated to obtain S-5-substituted-N-2?-(thien-2-yl-)ethyl-tetralin-2-amine (compound 2). The compound 2 or chiral acid salt thereof is alkylated and deprotected to produce rotigotine (compound 5).
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: December 24, 2013
    Assignee: 2Y-Chem Ltd.
    Inventors: Xungui He, Jianping Guo, Yanling Wang, Wensheng Tang, Xingzhong Zhang, Xuezhang Wang, Yuan Wang
  • Publication number: 20130046100
    Abstract: The chiral compound S-5-substituted-N-2?-(thienyl-2-yl-)ethyl-tetralin-2-amine or its chiral acid salts and preparation method thereof are disclosed, and the method for preparing Rotigotine by using the chiral compound is also disclosed. Racemic 5-substituted-N-2?-(thien-2-yl-)ethyl-tetralin-2-amine (compound 1) is resolved by using a conventional chiral acid to obtain an optically pure chiral acid salt of S-5-substituted-N-2?-(thien-2-yl-)ethyl-tetralin-2-amine, which is then dissociated to obtain S-5-substituted-N-2?-(thien-2-yl-)ethyl-tetralin-2-amine (compound 2). The compound 2 or chiral acid salt thereof is alkylated and deprotected to produce rotigotine (compound 5).
    Type: Application
    Filed: September 7, 2010
    Publication date: February 21, 2013
    Applicant: 2Y-Chem, Ltd.
    Inventors: Xungui He, Jianping Guo, Yanling Wang, Wensheng Tang, Xingzhong Zhang, Xuezhang Wang, Yuan Wang