Patents by Inventor Lang BAI

Lang BAI 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: 20240111661
    Abstract: An embodiment of this application provides a method and apparatus for testing control software, and a computer-readable storage medium to reduce the time consumed in the simulation-based debugging and enhance efficiency. The method may include obtaining test information of a plurality of fault signals; and injecting, based on the test information of the plurality of fault signals, the plurality of fault signals into a simulation environment in sequence to obtain test results of the plurality of fault signals handled by the control software, where the simulation environment may be a simulation environment of a control object of the control software.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 4, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Bin LAN, Xuming WANG, Deqiang SHI, Chunguang YE, Runqi WU, Jianfeng GUO, Chang LIU, Dongfei ZHANG, Jianping BAI, Lang YANG, Xuan HE
  • Publication number: 20230309205
    Abstract: The application discloses a dimming control circuit, a dimming control method, and a LED driver circuit. The dimming control circuit comprises a logic signal generation circuit and a feedback signal generation circuit. wherein the logic signal generation circuit is configured to compare the sampling signals with a first threshold signal and a second threshold signal respectively to obtain a first group of logic signals and a second group of logic signals. Wherein the feedback signal generation circuit is coupled to the logic signal generation circuit, which is configured to generate feedback signals to reduce energy output when each of the sampling signals is greater than the first threshold signal, and configured to generate feedback signals to increase the energy output when any one of the sampling signals is smaller than the second threshold signal.
    Type: Application
    Filed: March 28, 2023
    Publication date: September 28, 2023
    Inventors: Bairen LIU, Lang BAI, Feng CAO, Shuguang WANG
  • Patent number: 9918365
    Abstract: A ripple removing circuit and an LED control circuit applying the same are described herein. The LED control circuit receives alternating current input, converts the input into direct current with ripples and supplies power for an LED load. The direct current with ripples is connected to a positive end of the LED load, a negative end of the load is connected to a first end of a regulation tube, and a second end of the regulation tube is grounded. A first capacitor is connected between a control end of the regulation tube and the ground, and the time constant of the filter circuit formed by the first capacitor, a current generating circuit and a current source is far greater than a power frequency period. The current flowing across the regulation tube is approximately a direct current free of ripples, thereby decreasing the current ripples going across the LED load.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: March 13, 2018
    Assignee: JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD.
    Inventors: Lang Bai, Biliang Huang, Yuancheng Ren, Xunwei Zhou
  • Publication number: 20180063911
    Abstract: A ripple removing circuit and an LED control circuit applying the same are described herein. The LED control circuit receives alternating current input, converts the input into direct current with ripples and supplies power for an LED load. The direct current with ripples is connected to a positive end of the LED load, a negative end of the load is connected to a first end of a regulation tube, and a second end of the regulation tube is grounded. A first capacitor is connected between a control end of the regulation tube and the ground, and the time constant of the filter circuit formed by the first capacitor, a current generating circuit and a current source is far greater than a power frequency period. The current flowing across the regulation tube is approximately a direct current free of ripples, thereby decreasing the current ripples going across the LED load.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 1, 2018
    Applicant: JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD.
    Inventors: Lang BAI, Biliang HUANG, Yuancheng REN, Xunwei ZHOU
  • Patent number: 9787182
    Abstract: A self-adaption current control circuit includes: a regulating transistor, a first sampling comparison circuit, a proportion control circuit, a variable sampling resistor, and a second sampling comparison circuit. The self-adaption current control circuit adjusts the resistance value of the variable sampling resistor and the coefficient of the proportion circuit simultaneously through the proportion control circuit. Meanwhile, the resistance value of the variable sampling resistor and the coefficient of the proportion circuit can be increased or decreased in the same proportion so that the input voltage of a second sampling comparison circuit can be in an appropriate input range.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 10, 2017
    Assignee: JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD.
    Inventors: Lang Bai, Biliang Huang, Yuancheng Ren, Xunwei Zhou
  • Publication number: 20170194856
    Abstract: A self-adaption current control circuit includes: a regulating transistor, a first sampling comparison circuit, a proportion control circuit, a variable sampling resistor, and a second sampling comparison circuit. The self-adaption current control circuit adjusts the resistance value of the variable sampling resistor and the coefficient of the proportion circuit simultaneously through the proportion control circuit. Meanwhile, the resistance value of the variable sampling resistor and the coefficient of the proportion circuit can be increased or decreased in the same proportion so that the input voltage of a second sampling comparison circuit can be in an appropriate input range.
    Type: Application
    Filed: July 25, 2016
    Publication date: July 6, 2017
    Applicant: JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD.
    Inventors: Lang BAI, Biliang HUANG, Yuancheng REN, Xunwei ZHOU