Patents by Inventor Timothy James Rust

Timothy James Rust 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).

  • Method for starting a discharge lamp using high energy initial pulse
    Patent number: 7355354
    Abstract: The described DC to AC inverter efficiently controls the amount of electrical power used to drive a cold cathode fluorescent lamp (CCFL). Additionally, during striking of the CCFL, a higher energy initial energy pulse is used. During normal operation, a lower energy pulse is used.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: April 8, 2008
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Timothy James Rust, James Copland Moyer, David Joseph Christy
  • Fixed operating frequency inverter for cold cathode fluorescent lamp having strike frequency adjusted by voltage to current phase relationship
    Patent number: 6919694
    Abstract: A method of driving a lamp that uses a DC to AC inverter that is connected to a primary winding of a transformer is disclosed. The inverter frequency is variable, and in one embodiment, may be controlled by a voltage controlled oscillator. Circuitry is included that monitors the phase relationship between a voltage across a secondary of the transformer and a current through the primary of the transformer. The circuitry monitors the phase relationship and adjusts the inverter frequency, such as by adjusting voltage controlled oscillator, so that the phase relationship is maintained at a predetermined relationship.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: July 19, 2005
    Assignee: Monolithic Power Systems, Inc.
    Inventors: James Copland Moyer, Timothy James Rust
  • Method for starting a discharge lamp using high energy initial pulse
    Patent number: 6900600
    Abstract: The described DC to AC inverter efficiently controls the amount of electrical power used to drive a cold cathode fluorescent lamp (CCFL). The inverter uses a full bridge that is controlled to deliver energy to the CCFL using pulse width modulation (PWM). Additionally, during striking of the CCFL, a wider initial energy pulse is used. During normal operation, a lower energy pulse is used.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: May 31, 2005
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Timothy James Rust, James Copland Moyer, David Joseph Christy
  • Method for starting a discharge lamp using high energy initial pulse
    Publication number: 20040155607
    Abstract: The described DC to AC inverter efficiently controls the amount of electrical power used to drive a cold cathode fluorescent lamp (CCFL). Additionally, during striking of the CCFL, a higher energy initial energy pulse is used. During normal operation, a lower energy pulse is used.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 12, 2004
    Inventors: Timothy James Rust, James Copland Moyer, David Joseph Christy
  • Method for starting a discharge lamp using high energy initial pulse
    Publication number: 20020171376
    Abstract: The described DC to AC inverter efficiently controls the amount of electrical power used to drive a cold cathode fluorescent lamp (CCFL). Additionally, during striking of the CCFL, a higher energy initial energy pulse is used. During normal operation, a lower energy pulse is used.
    Type: Application
    Filed: May 31, 2002
    Publication date: November 21, 2002
    Inventors: Timothy James Rust, James Copland Moyer, David Joseph Christy