Patents by Inventor Ralph C. FERRARA

Ralph C. FERRARA 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).

  • Flyback switching mode power supply with voltage control and a method thereof
    Patent number: 10253744
    Abstract: A controller used to control a flyback switching mode power supply. The flyback switching mode power supply is constructed to charge a capacitor, and includes a rectifying device, a series arrangement of a switch and a primary winding of a transformer for receiving an input voltage, and a secondary winding of the transformer for charging the capacitor via the rectifying device to an output voltage. The controller is configured to sense the output voltage and to turn on the switch when the change of the output voltage over time becomes smaller than a predetermined threshold. By using the controller to sense and use the output voltage across the capacitor to turn on the switch, a controlled flyback switching mode power supply that makes use of voltage control is realized.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: April 9, 2019
    Assignee: NXP USA, Inc.
    Inventors: Michael Robert Garrard, Anoop K. Aggarwal, Ralph C. Ferrara
  • A FLYBACK SWITCHING MODE POWER SUPPLY WITH VOLTAGE CONTROL AND A METHOD THEREOF
    Publication number: 20160298590
    Abstract: A controller used to control a flyback switching mode power supply. The flyback switching mode power supply is constructed to charge a capacitor, and includes a rectifying device, a series arrangement of a switch and a primary winding of a transformer for receiving an input voltage, and a secondary winding of the transformer for charging the capacitor via the rectifying device to an output voltage. The controller is configured to sense the output voltage and to turn on the switch when the change of the output voltage over time becomes smaller than a predetermined threshold. By using the controller to sense and use the output voltage across the capacitor to turn on the switch, a controlled flyback switching mode power supply that makes use of voltage control is realized.
    Type: Application
    Filed: November 25, 2013
    Publication date: October 13, 2016
    Inventors: Michael Robert GARRARD, Anoop K. AGGARWAL, Ralph C. FERRARA