Patents by Inventor Eduardo M. A. Oliveira, Jr.

Eduardo M. A. Oliveira, Jr. 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).

  • Asymmetric transient response control
    Patent number: 9024595
    Abstract: A loop controller includes an error amplifier configured to receive an output of a controlled process and further configured to receive a reference input; and an asymmetric compensator. The asymmetric compensator includes a high pass filter configured to receive an amplified version of the reference input and output a filtered reference; and an asymmetric impedance configured to receive an amplified version of the filtered reference and output a compensation signal. The error amplifier is further configured to sum the compensation signal and the output of the controlled process, and provide an error signal based on a difference between the sum and the reference input. The compensation signal includes a first gain for a rising transition of the controlled process output and a second gain for a falling transition of the controlled process output.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 5, 2015
    Assignee: VLT, Inc.
    Inventors: Eduardo M. A. Oliveira, Jr., Maurizio Salato