Patents by Inventor Li Hsiang

Li Hsiang 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).

  • Battery free off-grid solar inverter system and control method thereof
    Patent number: 9106150
    Abstract: A battery free off-grid solar inverter system includes an inverter and a controller. The inverter is used for converting a direct current voltage provided by a solar panel into an alternating current voltage. The inverter has an input terminal, an output terminal, and a control terminal. The input terminal is used for coupling to the solar panel for receiving the direct current voltage, and the output terminal is used for coupling to a load for coupling the alternating current voltage. The controller is coupled to the control terminal for gradually increasing the alternating current voltage to make the direct current voltage be gradually decreased when the battery free off-grid solar inverter system is turned on. The controller stops increasing the alternating current voltage when the direct current voltage is lower than a predetermined direct current voltage value.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: August 11, 2015
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chang-Chia Chiang, Li Hsiang, Hsiao-Chih Ku