Patents by Inventor Derek Dougherty

Derek Dougherty 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).

  • ACTIVE POWER FACTOR CORRECTION FOR AIRCRAFT POWER SYSTEM HARMONIC MITIGATION
    Publication number: 20150145325
    Abstract: Active power factor correction can be used to reduce input harmonics in an aircraft power distribution system. In an embodiment, one or more power factor correction (PFC) units can be placed in a power distribution system to profile an input signal. Each PFC unit can include a converter, such as an AC-DC converter, and can be placed in the power system bus on the input side of the load. In an embodiment, a PFC unit can include a boost rectifier topology with active power factor correction for harmonics elimination.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 28, 2015
    Inventors: Sayeed Ahmad Mir, John Neely, Stanley Seely, Derek Dougherty, Andrew Thompson, Peter Torres, James Broadwell, Thomas Blair