Patents by Inventor Green Chen

Green Chen 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 supply device having two AC power inputs
    Patent number: 6535405
    Abstract: A power supply device having two AC power inputs includes a power unit that has first and second AC power inputs and a power output, a step-down and filter unit, a power regulator unit, and a detecting and switching unit. The step-down and filter unit converts the AC from the power unit to a low-voltage DC power. The power regulator unit maintains the low-voltage DC power as a stable power. The detecting and switching unit detects whether a power failure occurs on the first AC power input and subsequently switches the power supply to the second AC power input to keep a stable power supply so as to avoid any damage caused from the failure of the power supply.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: March 18, 2003
    Assignee: I-Star Computer Co., Ltd.
    Inventor: Green Chen
  • Power supply device having two AC power inputs
    Publication number: 20020145894
    Abstract: A power supply device having two AC power inputs includes a power unit that has first and second AC power inputs and a power output, a step-down and filter unit, a power regulator unit, and a detecting and switching unit. The step-down and filter unit converts the AC from the power unit to a low-voltage DC power. The power regulator unit maintains the low-voltage DC power as a stable power. The detecting and switching unit detects whether a power failure occurs on the first AC power input and subsequently switches the power supply to the second AC power input to keep a stable power supply so as to avoid any damage caused from the failure of the power supply.
    Type: Application
    Filed: May 15, 2001
    Publication date: October 10, 2002
    Applicant: I-Star Computer Co., Ltd
    Inventor: Green Chen