Patents by Inventor Andrea Zoppi

Andrea Zoppi 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).

  • METHOD OF CONTROLLING A SWITCHING CONVERTER AND RELATED INDUCTION COOKTOP
    Publication number: 20230283193
    Abstract: A switching converter, such as for an induction cooktop, that can be operated to deliver a power level smaller than the minimum power level for having a soft-switching. Input AC terminals are disconnected from the DC-bus capacitor to prevent it from being charged, so that the DC voltage exhibited by the DC-bus is null or smaller than a minimum nominal value when a next ON time interval T1 begins. The switching converter helps prevent ticking noise.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Salvatore Baldo, Andrea Gallivanoni, Cristiano Vito Pastore, Andrea Zoppi
  • METHOD OF CONTROLLING A QUASI RESONANT CONVERTER AND RELATED INDUCTION COOKTOP
    Publication number: 20230283195
    Abstract: A ticking noise that can be heard when the QR converter is operated to deliver a power level smaller than the minimum power level for having a soft-switching can be due to the fact that during the OFF interval there is no power delivery and the DC-bus capacitance is charged at the peak of rectified main line voltage. This drawback may be overcome by discharging purposely the DC-bus capacitor during an OFF interval of the QR converter until the DC-bus capacitor is substantially discharged when a new ON interval of the QR converter is started.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Applicant: WHIRLPOOL CORPORATION
    Inventors: Salvatore Baldo, Andrea Gallivanoni, Cristiano Vito Pastore, Andrea Zoppi