Patents Assigned to Delta
  • Multi-phase AC/DC converter
    Patent number: 11923767
    Abstract: The present disclosure provides a three-phase AC/DC converter aiming for low input current harmonic. The converter includes an input stage for receiving a three-phase AC input voltage, an output stage for at least one load, and one or more switching conversion stages, each stage including a plurality of half bridge modules. The switches in each module operate with a substantially fixed 50% duty cycle and are connected in a specific pattern to couple a DC-link and a neutral node of the input voltage. The AC/DC converter further includes one or more controllers adapted to vary the switching frequency of the switches in the switching conversion stages based on at least one of load voltage, load current, input voltage, and DC-link voltage. The converter can also include one or more decoupling stages, such as, inductive components adapted to decouple the output stage from the switching conversion stages.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: March 5, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chi Zhang, Zhiyu Shen, Yungtaek Jang, Sheng-Hua Li, Ruxi Wang, Peter Mantovanelli Barbosa
  • Power module
    Patent number: 11923265
    Abstract: A power module, including: a first conductor, disposed at a first reference plane; a second conductor, disposed at a second reference plane, wherein projections of the first and second conductors on the first reference plane have a first overlap area; a third conductor, disposed at a third reference plane; a plurality of first switches and a plurality of second switches, wherein at least one of the first switches and at least one of the second switches that are located on a left side are alternatively disposed, at least one of the first switches and at least one of the second switches that are located on a right side are alternately disposed, and the left side and the right side of the first overlap area are oppositely disposed. Heat sources of the power module are evenly distributed and its parasitic inductance is low.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: March 5, 2024
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Wei Cheng, Shouyu Hong, Dongfang Lian, Tao Wang, Zhenqing Zhao
  • Power conversion circuit with a transformer
    Patent number: 11923758
    Abstract: A power conversion circuit includes an input positive terminal, an input negative terminal, an output positive terminal, an output negative terminal, a first bridge arm, a second bridge arm, a transformer, a first resonant capacitor, a second resonant capacitor, a third resonant capacitor and a third resonant capacitor. The transformer includes a first winding, a second winding and a third winding. The plurality of switches in the first bridge arm and the plurality of switches in the second bridge arm are selectively turned on or turned off. The ratio of the input voltage to the output voltage can be adjustable by changing the turn numbers of the first winding, the second winding and the third winding.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: March 5, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Da Jin, Zhengyu Ye, Xueliang Chang, Shengli Lu
  • Antenna structure and wireless communication device
    Patent number: 11916293
    Abstract: An antenna structure is provided, which includes a substrate, an antenna unit and a metal ground. The substrate includes a first surface and a second surface; the antenna unit disposed on the first surface includes a radiation part, a feeding part and a feeding line, where the feeding line includes a first transmission line and a second transmission line that are perpendicular to each other and connected to each other, and the first transmission line is connected to the radiation part via the feeding part; and the metal ground disposed on the second surface has an edge which is perpendicular to projection of the radiation part to the metal ground; and a resonance slot is disposed on the metal ground, and its position corresponds between projection of the second transmission line to the metal ground and the edge.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: February 27, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chieh-Tsao Hwang, Siang-Rong Hsu, Yen-Ting Chen
  • ALIGNMENT MECHANISM
    Publication number: 20240061036
    Abstract: An alignment mechanism is disclosed which includes a mount, a beam having a first end affixed to the mount and a second end. The beam is an order of magnitude more rigid along its longitudinal axis than along an axis orthogonal to its longitudinal axis. The second end of the beam is affixed to a first device having a surface configured to contact a second device. The beam applies a normal force component to the second device through the first device and allows movement at the second end in directions orthogonal to the normal force component.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Applicant: Delta Design, Inc.
    Inventors: Jerry Ihor TUSTANIWSKYJ, James Wittman BABCOCK
  • Power converter, inductor element and control method of phase shedding
    Patent number: 11909311
    Abstract: An N-phase power converter has N phases with outputs connected in parallel and outputs connected in parallel. The converter comprises: N switch units, wherein each phase of the N-phase power converter comprises one of the N switch units; and an integrated inductor unit, comprising M inductor subunits, wherein M is a natural number greater than or equal to 2, each inductor subunit comprises i inductors, i is a natural number greater than or equal to 2, N>M×i or N=M×i, M×i of the inductors in the integrated inductor unit are respectively coupled to M×i of the N switch units, wherein: the i inductors of each of the inductor subunit are inverse-coupled to each other, the coupling coefficient between the M inductor subunits is less than the coupling coefficient between the i inductors in each of the inductor subunits.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: February 20, 2024
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Jinping Zhou, Min Zhou, Zhangnan Xin, Xinjian Zou
  • Faucet handle
    Patent number: D1015510
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: February 20, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Benjamin Stoler
  • Faucet
    Patent number: D1016233
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Judd Lord
  • Faucet handle
    Patent number: D1016234
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Judd Lord
  • Faucet body
    Patent number: D1016235
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Judd Lord
  • Faucet
    Patent number: D1016238
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Nile Mylin
  • Faucet
    Patent number: D1016240
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Reed Matthew Sell
  • Faucet handle
    Patent number: D1016242
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Augustine Curran-Muñoz
  • Faucet handle
    Patent number: D1016243
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Nile Mylin
  • Faucet handle
    Patent number: D1016244
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Reed Matthew Sell
  • Faucet spout
    Patent number: D1016247
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Nile Mylin
  • Faucet spout
    Patent number: D1016248
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Eileen Claire Wolff
  • Faucet spout
    Patent number: D1016249
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: February 27, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Reed Matthew Sell
  • Faucet
    Patent number: D1016982
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: March 5, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: Peyton Michele Hartis
  • Faucet spout
    Patent number: D1016987
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: March 5, 2024
    Assignee: DELTA FAUCET COMPANY
    Inventor: William Harrison Huth