Patents by Inventor Chih-Nan HSIA

Chih-Nan HSIA 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).

  • Power supplies with limited power protection and relevant control methods
    Patent number: 11404863
    Abstract: A power supply is configured to limit its output power, converting an input voltage on a primary side into a bus voltage on a secondary side. A current-sense resistor detects a bus current output from the power supply to provide a current-sense signal. A bus switch is electrically connected to a secondary winding on the secondary side, configured to selectively supply power to the bus voltage. A power delivery controller controls the bus switch in response to the current-sense signal and a power detection signal on the secondary side. The power delivery controller provides a power threshold in response to the bus voltage, compares the power detection signal with the power threshold, and turns off the bus switch to stop supplying power to the bus voltage if the power detection signal exceeds the power threshold, thereby limiting the output power of the power supply.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: August 2, 2022
    Assignee: LEADTREND TECHNOLOGY CORPORATION
    Inventors: Hsien-Te Huang, Ming-Chang Tsou, Chih-Nan Hsia, Mao-Shih Li, Pai-Feng Liu, Chin-Ho Wu
  • POWER SUPPLIES WITH LIMITED POWER PROTECTION AND RELEVANT CONTROL METHODS
    Publication number: 20210313794
    Abstract: A power supply is configured to limit its output power, converting an input voltage on a primary side into a bus voltage on a secondary side. A current-sense resistor detects a bus current output from the power supply to provide a current-sense signal. A bus switch is electrically connected to a secondary winding on the secondary side, configured to selectively supply power to the bus voltage. A power delivery controller controls the bus switch in response to the current-sense signal and a power detection signal on the secondary side. The power delivery controller provides a power threshold in response to the bus voltage, compares the power detection signal with the power threshold, and turns off the bus switch to stop supplying power to the bus voltage if the power detection signal exceeds the power threshold, thereby limiting the output power of the power supply.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 7, 2021
    Inventors: Hsien-Te HUANG, Ming-Chang TSOU, Chih-Nan HSIA, Mao-Shih LI, Pai-Feng LIU, Chin-Ho WU