Patents by Inventor Yahong Xiong

Yahong Xiong 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: 11942260
    Abstract: A power module includes a power circuit and a magnetic assembly. The power circuit includes at least one switch element. The magnetic assembly includes at least one first electrical conductor and a magnetic core module comprising at least one hole, wherein the at least one first electrical conductor passes through the at least one hole, and a terminal of the at least one first electrical conductor is electrically connected to the at least one switch element. The power circuit and the magnetic assembly are arranged in sequence along a same direction.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: March 26, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yahong Xiong, Da Jin, Qinghua Su
  • Publication number: 20240096543
    Abstract: A power system includes a power module, an electronic load and a system board. The power module includes a first surface, a second surface, a switch and a plurality of conductive parts, wherein the switch is disposed on the first surface of the power module and the plurality of conductive parts are disposed on the second surface of the power module. The electronic load includes a plurality of conductive parts. The power module and the electronic load are disposed on two opposite sides of the system board, the power module delivers power to the electronic load through the system board, and gaps and networks of the plurality of conductive parts of the power module correspond to those of the plurality of conductive parts of the electronic load.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 21, 2024
    Inventors: Yahong Xiong, Da Jin, Qinghua Su
  • Patent number: 11923773
    Abstract: A voltage regulator module is provided. The switch circuit assembly includes two switch circuits and an input capacitor. Respective input terminals of the two switch circuits are connected with each other in parallel. The input capacitor is electrically connected with the respective input terminals of the two switch circuits in parallel and disposed between the two switch circuits. The plurality of conductive members have a first conductive member, a second conductive member and a third conductive member. The first conductive member and the third conductive member are configured to deliver an electric energy. The second conductive member is configured to deliver a signal. One end of each conductive member is electrically connected with corresponding switch circuit, and the other end of the first conductive member and the third conductive member is electrically connected with the load. The switch circuit assembly and the magnetic assembly are stacked with each other.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: March 5, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yahong Xiong, Shaojun Chen, Da Jin, Qinghua Su
  • Patent number: 11894777
    Abstract: A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: February 6, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Yahong Xiong, Qinghua Su, Zhongwang Yang
  • Patent number: 11881344
    Abstract: A power system includes a power module, an electronic load and a system board. The power module includes a first surface, a second surface, a switch and a plurality of conductive parts, wherein the switch is disposed on the first surface of the power module and the plurality of conductive parts are disposed on the second surface of the power module. The electronic load includes a plurality of conductive parts. The power module and the electronic load are disposed on two opposite sides of the system board, the power module delivers power to the electronic load through the system board, and gaps and networks of the plurality of conductive parts of the power module correspond to those of the plurality of conductive parts of the electronic load.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: January 23, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yahong Xiong, Da Jin, Qinghua Su
  • Patent number: 11791087
    Abstract: The present invention relates to a planar converter, comprising: a magnetic unit comprising a first planar winding and two second planar windings magnetically coupled to each other and a magnetic core assembly; two closed circuits each comprises the first planar winding, a switch, and has a first connection point and a second connection point; two PCBs each provided with at least one of the closed circuits thereon; and two first connectors each comprising two welding ends opposite to each other, wherein the two welding ends of one of the two first connectors are connected to the first connection points of the two closed circuits, respectively, and the two welding ends of another one of the two first connectors are connected to the second connection points of the two closed circuits, respectively, and the two closed circuits are connected in parallel.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: October 17, 2023
    Assignee: Delta Electronics, Inc.
    Inventors: Da Jin, Yahong Xiong, Qinghua Su
  • Patent number: 11784560
    Abstract: A power conversion circuit includes an input positive terminal, an input negative terminal, an output positive terminal, an output negative terminal, a first switch bridge arm, a first resonant branch, a capacitor branch, an output inductor unit and an output capacitor. The input negative terminal is electrically connected with the output negative terminal. The first switch bridge arm is electrically connected between the input positive terminal and the input negative terminal. The first switch bridge arm includes a first switch, a second switch, a third switch and a fourth switch. The first switch and the second switch are electrically connected with a first node. The second switch and the third switch are electrically connected with a second node. The third switch and the fourth switch are electrically connected with a third node. The first resonant branch is electrically connected between the first node and the third node.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: October 10, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Yahong Xiong, Litao Qian, Qinghua Su
  • Patent number: 11749442
    Abstract: A magnetic element includes at least one primary winding, at least one secondary winding, a magnetic core, and an auxiliary winding. A winding segment or an entire of the primary winding or a winding segment or an entire of the secondary winding is defined as a parallel-connected winding set. The magnetic core includes a plurality of winding legs, two lateral legs, and two connection parts. The at least one primary winding and the at least one secondary winding are wound around each winding leg. The directions of magnetic fluxes through every two adjacent winding legs are opposite. The auxiliary winding is wound on one of two lateral legs, and electrically connected with the parallel-connected winding set. A direction of a magnetic flux generated by the auxiliary winding is opposite to a direction of the magnetic flux through the adjacent winding leg.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: September 5, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Xueliang Chang, Da Jin, Yahong Xiong, Xiaodong Chen
  • Publication number: 20230274870
    Abstract: A magnetic element includes a magnetic core, at least one excitation winding and an auxiliary winding. The magnetic core includes at least one first magnetic leg, a second magnetic leg and a third magnetic leg. Each of the at least one magnetic leg is wound with an excitation winding, wherein a vector sum of magnetic flux passing through each of the at least one first magnetic leg is a first magnetic flux, a second magnetic flux is passing through the second magnetic leg, and a third magnetic flux is passing through the third magnetic leg. The auxiliary winding is partially or completely wound on the second magnetic leg, wherein the auxiliary winding is used to clamp the second magnetic flux.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 31, 2023
    Inventors: Xueliang Chang, Da Jin, Yahong Xiong, Xiaodong Chen
  • Publication number: 20230268820
    Abstract: The present disclosure provides a power converter including an input capacitor, an input switch, first and second bridge arms, first and second storage capacitors, two output inductors and an output capacitor. The first and second bridge arms are connected in parallel between a second terminal of the input switch and the ground terminal. The first bridge arm includes three switches connected in series and has first upper and lower nodes therebetween. The second bridge arm includes three switches connected in series and has second upper and lower nodes therebetween. The first storage capacitor is coupled between the first upper node and the second lower node. The second storage capacitor is coupled between the second upper node and the first lower node. The input switch is configured to block a rush current between the input capacitor and the first storage capacitor and/or the second storage capacitor.
    Type: Application
    Filed: December 21, 2022
    Publication date: August 24, 2023
    Inventors: Da Jin, Yahong Xiong, Qinghua Su
  • Publication number: 20230246554
    Abstract: A power conversion module includes a first bridge arm, a second bridge arm, a transformer and a rectifying circuit. An output positive terminal and an output negative terminal are electrically connected with a low-voltage and high-current load. The first bridge arm and the second bridge arm are electrically connected between an input positive terminal and an input negative terminal. The transformer includes a primary winding, a first secondary winding and a second secondary winding. The two terminals of the primary winding are electrically connected with a midpoint of the first bridge arm and a midpoint of the second bridge arm. An output inductor of the rectifying circuit is electrically connected between the winding midpoint and the output positive terminal. The input voltage is higher than 40 V. The output voltage is lower than or equal to 2.2 V.
    Type: Application
    Filed: January 3, 2023
    Publication date: August 3, 2023
    Inventors: Da Jin, Yahong Xiong, Litao Qian, Qinghua Su
  • Publication number: 20230238173
    Abstract: A magnetic device and an electronic device are provided. The magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first magnetic cover, a second magnetic cover, a first magnetic leg and a second magnetic leg. The first magnetic leg and the second magnetic leg are between the first magnetic cover and the second magnetic cover. A channel is formed between the first magnetic leg and the second magnetic leg. The winding assembly includes two coupled windings. Each coupled winding includes a first sub-winding, a second sub-winding, a third sub-winding. The first sub-winding goes through the channel. The second sub-winding is wound around the first magnetic leg. The third sub-winding is wound around the second magnetic leg.
    Type: Application
    Filed: January 9, 2023
    Publication date: July 27, 2023
    Inventors: Da Jin, Xueliang Chang, Litao Qian, Shengli Lu, Yahong Xiong
  • Publication number: 20230230749
    Abstract: A power system includes a power module, an electronic load and a system board. The power module includes a first surface, a second surface, a switch and a plurality of conductive parts, wherein the switch is disposed on the first surface of the power module and the plurality of conductive parts are disposed on the second surface of the power module. The electronic load includes a plurality of conductive parts. The power module and the electronic load are disposed on two opposite sides of the system board, the power module delivers power to the electronic load through the system board, and gaps and networks of the plurality of conductive parts of the power module correspond to those of the plurality of conductive parts of the electronic load.
    Type: Application
    Filed: March 3, 2023
    Publication date: July 20, 2023
    Inventors: Yahong Xiong, Da Jin, Qinghua Su
  • Publication number: 20230223832
    Abstract: A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 13, 2023
    Inventors: Da Jin, Yahong Xiong, Qinghua Su, Zhongwang Yang
  • Publication number: 20230223186
    Abstract: A magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first outer magnetic leg, a second outer magnetic leg, a first inner magnetic leg group and a second inner magnetic leg group. A first channel is formed between the first inner magnetic leg group and the first outer magnetic leg. A second channel is formed between the second inner magnetic leg group and the first inner magnetic leg group. A third channel is formed between the second inner magnetic leg group and the second outer magnetic leg. The winding assembly includes four coupled windings. The first terminals of the four coupled windings are located near a first lateral side of the magnetic core assembly. The second terminals of the four coupled windings are located near a second lateral side of the magnetic core assembly.
    Type: Application
    Filed: January 3, 2023
    Publication date: July 13, 2023
    Inventors: Da Jin, Yahong Xiong, Yang Leng, Yankai Liu, Zhongwang Yang
  • Publication number: 20230187115
    Abstract: A magnetic device includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first magnetic cover, a second magnetic cover and a plurality of magnetic legs. The second magnetic cover has a perforation. The plurality of magnetic legs are disposed between the first magnetic cover and the second magnetic cover. A middle region is defined by the plurality of magnetic legs, the first magnetic cover and the second magnetic cover. The middle region is in communication with the perforation. The middle region includes a plurality of communication portions. The winding assembly includes at least one coupled winding pair. In addition, two coupled windings of each coupled winding pair are respectively transferred through two different communication portions, and portions of the two coupled windings of each coupled winding pair are penetrated through the perforation of the second magnetic cover.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 15, 2023
    Inventors: Da Jin, Yahong Xiong, Litao Qian, Qinghua Su
  • Publication number: 20230179092
    Abstract: A power conversion circuit is provided. According to the topologies of power conversion circuits and the corresponding control manners of the present disclosure, the output voltage is greatly reduced relative to the input voltage, and thus the function of voltage reduction is achieved. Moreover, a voltage-second product of the time and the voltage across the first output inductor and a voltage-second product of the time and the voltage across the second output inductor are both greatly reduced. Accordingly, the inductance, volume and loss of the first output inductor and the second output inductor are greatly reduced. Therefore, the voltage regulation module may receive the low output voltage outputted by the power conversion circuit, thereby reducing the overall volume of the voltage regulation module and increasing the power conversion density and conversion efficiency of the voltage regulation module.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 8, 2023
    Inventors: Da Jin, Yahong Xiong, Litao Qian, Qinghua Su
  • Publication number: 20230179094
    Abstract: A power conversion circuit is provided. In the power conversion circuit, a three-switch unit of a switch bridge arm includes first, second and third terminals and upper, middle and lower switches serially connected between the first and third terminals sequentially. The upper and lower switches are turned on and off synchronously. A grounding switch is coupled between the third terminal and a negative input terminal. A cross-connected storage capacitor is electrically connected between a node between the upper and middle switches and the third terminal. A diode, a capacitor and a driving unit of a floating driving circuit are electrically connected between the upper and lower switches. A connection node between the diode and the capacitor is electrically connected to a driving terminal of the upper switch. A connection node between the capacitor and the driving unit is electrically connected to a driving terminal of the lower switch.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 8, 2023
    Inventors: Da Jin, Yahong Xiong, Litao Qian, Qinghua Su
  • Patent number: 11664728
    Abstract: The present disclosure provides a power conversion device including an input end having positive and negative input terminals, two bridge arms, two transformers and an output capacitor. Each bridge arm is connected to the input end in parallel, and includes three switches coupled in series. Two terminals of one switch are electrically connected to the positive input terminal and a primary node respectively. Two terminals of another switch are electrically connected to the negative input terminal and a secondary node respectively. Each transformer includes primary and secondary windings coupled to each other. Two primary windings are serially coupled between two primary nodes. Two secondary windings are serially coupled between two secondary nodes. Two terminals of the output capacitor are electrically connected to output positive and negative terminals respectively.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: May 30, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Yahong Xiong, Qinghua Su
  • Patent number: 11646668
    Abstract: A power converter includes N power conversion units. Each power conversion unit includes a main switching circuit, a transformer, a synchronous rectifier circuit, an input signal terminal and a signal processor. A primary winding of the transformer is connected with the main switching circuit. The synchronous rectifier circuit is connected with a secondary winding of the transformer. The input signal terminal receives a first PWM control signal. The signal processor generates first and second PWM driving signals to drive the main switching circuit according to the first PWM control signal, and a phase difference between the first and second PWM driving signals is (180±?) degree. The signal processor generates third and fourth PWM driving signals to drive the synchronous rectifier circuit according to the first PWM control signal, and a phase difference between the third and fourth PWM driving signals is (180±?) degree.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: May 9, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yahong Xiong, Yang Leng, Junguo Cui, Zhongwang Yang