Patents by Inventor Tung M. Huynh

Tung M. Huynh 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 holdup circuit
    Patent number: 6879140
    Abstract: A power holdup circuit including a monitoring circuit and a power holdup circuit. The monitoring circuit includes an average voltage comparator and an absolute voltage comparator which cooperate to detect a voltage drop in the voltage supplied by the power supply. The monitoring circuit also includes a timer to determine the time period of the voltage dropout. If a predetermined voltage dropout event occurs, the monitoring circuit generates a control signal to a switching component which activates a holdup power source. The holdup power source includes an energy storage device that stores energy to maintain the supply voltage during dropout periods.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: April 12, 2005
    Assignee: MKS Instruments, Inc.
    Inventors: Igor Elkin, Ilya Bystryak, Jack Schuss, Tung M. Huynh, Vadim Lubomirsky
  • Power holdup circuit
    Publication number: 20040124821
    Abstract: A power holdup circuit including a monitoring circuit and a power holdup circuit. The monitoring circuit includes an average voltage comparator and an absolute voltage comparator which cooperate to detect a voltage drop in the voltage supplied by the power supply. The monitoring circuit also includes a timer to determine the time period of the voltage dropout. If a predetermined voltage dropout event occurs, the monitoring circuit generates a control signal to a switching component which activates a holdup power source. The holdup power source includes an energy storage device that stores energy to maintain the supply voltage during dropout periods.
    Type: Application
    Filed: June 25, 2003
    Publication date: July 1, 2004
    Applicant: MKS Instruments, Inc.
    Inventors: Igor Elkin, Ilya Bystryak, Jack Schuss, Tung M. Huynh, Vadim Lubomirsky