Patents by Inventor Suvimol-Opas Waraluk

Suvimol-Opas Waraluk 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).

  • Modular power supply system including a power status signal generator to perform fast sag detection to input peak voltage
    Patent number: 7002331
    Abstract: A modular power supply system incorporating a power status signal generator circuit to detect the voltage sag of the input peak voltage within a short period is proposed. The power status signal generator circuit mainly includes a peak detector that detects a peak value of an input voltage, wherein the peak detector comprises a first comparator that compares the input voltage with a predetermined reference voltage and sends an output signal according to a comparison result thereof, a RC network connected to the first comparator and is configured to charge and discharge the capacitor according to the output signal of the first comparator, and a second comparator connected to the resistor-capacitor network that compares a terminal voltage of the capacitor of the resistor-capacitor network with the predetermined reference voltage and generates a power status signal according to a comparison result thereof.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: February 21, 2006
    Assignees: Delta Electronics, Inc., Delta Electronics (Thailand) Public Company, Limited
    Inventors: Sakda Sae-Ueng, Suvimol-Opas Waraluk, Ming Chun Xu, Kuei Hsiang Tsai
  • Modular power supply system including a power status signal generator to perform fast sag detection to input peak voltage
    Publication number: 20050151524
    Abstract: A modular power supply system incorporating a power status signal generator circuit to detect the voltage sag of the input peak voltage within a short period is proposed. The power status signal generator circuit mainly includes a peak detector that detects a peak value of an input voltage, wherein the peak detector comprises a first comparator that compares the input voltage with a predetermined reference voltage and sends an output signal according to a comparison result thereof, a RC network connected to the first comparator and is configured to charge and discharge the capacitor according to the output signal of the first comparator, and a second comparator connected to the resistor-capacitor network that compares a terminal voltage of the capacitor of the resistor-capacitor network with the predetermined reference voltage and generates a power status signal according to a comparison result thereof.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 14, 2005
    Inventors: Sakda Sae-Ueng, Suvimol-Opas Waraluk, Ming Xu, Kuei Tsai