Patents by Inventor Lucian BUDICA

Lucian BUDICA 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).

  • High efficiency AC-DC converter
    Patent number: 11996785
    Abstract: A method of optimizing the efficiency of an AC-DC converter, wherein the energy extraction time from the AC line is increased and as result the size of the bulk capacitor can be decreased and in applications wherein the size of the bulk capacitor is maintained constant the ripple across the bulk capacitor is decreased. The methods presented also increase the power factor in AC-DC converters. Extending the energy extraction from the AC line also lowers the RMS current through the input bridge and the input bulk capacitor. The reduction of the ripple across the bulk capacitor also increases the efficiency of the DC-DC converter, increasing in this way the overall efficiency of the AC-DC converter.
    Type: Grant
    Filed: November 17, 2023
    Date of Patent: May 28, 2024
    Assignee: Rompower Technology Holdings, LLC
    Inventors: Ionel Jitaru, Andrei Stefan Savu, Lucian Budica
  • High Efficiency AC-DC Converter
    Publication number: 20240171086
    Abstract: A method of optimizing the efficiency of an AC-DC converter, wherein the energy extraction time from the AC line is increased and as result the size of the bulk capacitor can be decreased and in applications wherein the size of the bulk capacitor is maintained constant the ripple across the bulk capacitor is decreased. The methods presented also increase the power factor in AC-DC converters. Extending the energy extraction from the AC line also lowers the RMS current through the input bridge and the input bulk capacitor. The reduction of the ripple across the bulk capacitor also increases the efficiency of the DC-DC converter, increasing in this way the overall efficiency of the AC-DC converter.
    Type: Application
    Filed: November 17, 2023
    Publication date: May 23, 2024
    Applicant: Rompower Technology Holdings, LLC
    Inventors: Ionel Jitaru, Andrei Stefan Savu, Lucian Budica
  • Electric power converter with snubber circuit
    Patent number: 11005359
    Abstract: An electric power converter has a first converter terminal, a second converter terminal, a converter switch and a snubber circuit. The snubber circuit comprises a snubber switch and a passive network connected to the snubber switch. The snubber circuit is connected to the converter switch, the first converter terminal and the second converter terminal.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 11, 2021
    Assignee: DET International Holding Limited
    Inventor: Lucian Budica
  • Electric Power Converter with Snubber Circuit
    Publication number: 20180183323
    Abstract: An electric power converter has a first converter terminal, a second converter terminal, a converter switch and a snubber circuit. The snubber circuit comprises a snubber switch and a passive network connected to the snubber switch. The snubber circuit is connected to the converter switch, the first converter terminal and the second converter terminal.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Applicant: DET International Holding Limited
    Inventor: Lucian BUDICA