Patents Assigned to Shenzhen Union Semiconductor Co., LTD
  • Publication number: 20230336071
    Abstract: The present invention belongs to the technical field of gate driving circuits, and discloses a partially bootstrapped gate driving circuit for reducing switching loss and a control method thereof. The partially bootstrapped gate driving circuit for reducing the switching loss comprises a switching device, PWM, a power supply, signal isolation, non-isolated driving chips, a bootstrap structure, a driving resistor, Mon and Moff. The bootstrap structure is used in the present invention, which can realize voltage doubling output without increasing the power supply, overcomes limitation of parasitic resistance inside a large gate of a wide band gap device, and can significantly reduce the switching loss.
    Type: Application
    Filed: November 9, 2022
    Publication date: October 19, 2023
    Applicants: Huazhong University of Science and Technology, Shenzhen Union Semiconductor Co., LTD
    Inventors: Zhiqiang WANG, Cheng QIAN, Guoqing XIN, Xiaojie SHI
  • Publication number: 20230057941
    Abstract: The present invention belongs to the technical field of simulation of power semiconductor modules, and discloses a multi-physics co-simulation method of a power semiconductor module. The multi-physics co-simulation method of the power semiconductor module comprises: adopting professional circuit simulation software PSpice supporting a spice model to be imported into a device, and by designing a specific collaborative analysis method and performing secondary development of a software data exchange interface, i.e. constructing a coupling interface of co-simulation, performing electricity-heat-force co-simulation of two types of software PSpice and COMSOL by adopting an indirect coupling manner. The simulation time is greatly shortened, and the simulation efficiency is improved.
    Type: Application
    Filed: August 18, 2022
    Publication date: February 23, 2023
    Applicants: Huazhong University of Science and Technology, Shenzhen Union Semiconductor Co., LTD
    Inventors: Zhiqiang WANG, Yayong YANG, Yuxin GE, Guoqing XIN, Xiaojie SHI