Patents by Inventor Todd Allen Toporski

Todd Allen Toporski 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).

  • CASCADED ACTIVE ELECTRO-MAGNETIC INTERFERENCE FILTER
    Publication number: 20200373831
    Abstract: An active electromagnetic interference (EMI) filter includes a first amplifier and a second amplifier. The first amplifier is configured to sense noise signals on a power conductor. The second amplifier is coupled to the first amplifier and is configured to drive a cancellation signal onto the power conductor. The cancellation signal is to reduce the amplitude of the noise signals sensed by the first amplifier. An output impedance of the second amplifier is lower than an output impedance of the first amplifier.
    Type: Application
    Filed: August 11, 2020
    Publication date: November 26, 2020
    Inventors: Yongbin CHU, Yogesh RAMADASS, Saurav BANDYOPADHYAY, Todd Allen TOPORSKI, Jeffrey Anthony MORRONI
  • Cascaded active electro-magnetic interference filter
    Patent number: 10778089
    Abstract: An active electromagnetic interference (EMI) filter includes a first amplifier and a second amplifier. The first amplifier is configured to sense noise signals on a power conductor. The second amplifier is coupled to the first amplifier and is configured to drive a cancellation signal onto the power conductor. The cancellation signal is to reduce the amplitude of the noise signals sensed by the first amplifier. An output impedance of the second amplifier is lower than an output impedance of the first amplifier.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 15, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongbin Chu, Yogesh Ramadass, Saurav Bandyopadhyay, Todd Allen Toporski, Jeffrey Anthony Morroni
  • CASCADED ACTIVE ELECTRO-MAGNETIC INTERFERENCE FILTER
    Publication number: 20180294714
    Abstract: An active electromagnetic interference (EMI) filter includes a first amplifier and a second amplifier. The first amplifier is configured to sense noise signals on a power conductor. The second amplifier is coupled to the first amplifier and is configured to drive a cancellation signal onto the power conductor. The cancellation signal is to reduce the amplitude of the noise signals sensed by the first amplifier. An output impedance of the second amplifier is lower than an output impedance of the first amplifier.
    Type: Application
    Filed: September 26, 2017
    Publication date: October 11, 2018
    Inventors: Yongbin CHU, Yogesh RAMADASS, Saurav BANDYOPADHYAY, Todd Allen TOPORSKI, Jeffrey Anthony MORRONI
  • Method to determine the presence of multi-carrier signals
    Patent number: 7272189
    Abstract: A method for determining the presence of multiple carrier frequency components in an electrical signal by calculating a value for at least one characteristic of the set of peaks in a defined portion of the frequency spectrum, such as the number of peaks within a defined portion of the frequency spectrum or the average spacing between pairs of peaks, and defining a range of values of the characteristic that would indicate the presence of multiple carrier components, and comparing this calculated characteristic value against the values in the defined range of values.
    Type: Grant
    Filed: October 11, 2003
    Date of Patent: September 18, 2007
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Todd Allen Toporski, J. William Whikehart