Patents by Inventor Roberto Aletti

Roberto Aletti 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).

  • Publication number: 20260163480
    Abstract: A high-side driver-circuit involves a charge-pump for driving a high-side transistor. The circuit includes a high-side transistor, a low-side transistor or unidirectional conducting-device, a bootstrap-capacitor, and a trickle-charge-pump connected between the output-node and ground. The trickle-charge-pump activates when the voltage at the output-node exceeds the voltage at the low-voltage power-supply-node, alternately charging a trickle-capacitor and transferring charge to the bootstrap-capacitor. This enables continuous replenishment of the bootstrap-capacitor, allowing for extended or indefinite high-side conduction periods, including 100% duty-cycle operation. The trickle-charge-pump incorporates an auto-on/auto-off functionality, synchronizing operation with the output-node-voltage.
    Type: Application
    Filed: December 5, 2024
    Publication date: June 11, 2026
    Applicant: STMicroelectronics International N.V.
    Inventors: Romino CRETONE, Roberto ALETTI, Aldo Vittorio NOVELLI, Marco Giovanni FONTANA
  • Patent number: 10110399
    Abstract: A circuit with galvanic isolation includes a series of n cascaded transformers including a first transformer and a last transformer in the series. A transmitter is coupled to the primary winding of the first transformer in the series of cascaded transformers, the transmitter being configured for supplying to the primary winding a transmission signal as a function of an input signal. A receiver is coupled to the secondary winding of the last transformer of the series of cascaded transformers and is configured for receiving at the secondary winding a reception signal transmitted over the series of cascaded transformers. A predistortion module is configured for applying to the transmission signal a predistortion including an (n?1)-fold integration, where n is the number of cascaded transformers, of a transmission signal that would be supplied to the input of a sole transformer present in a single-transformer solution.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 23, 2018
    Assignee: STMicroelectronics S.r.l.
    Inventors: Alessandro Nizza, Roberto Aletti, Francesco Pulvirenti, Giuseppe Cantone
  • Publication number: 20180102922
    Abstract: A circuit with galvanic isolation includes a series of n cascaded transformers including a first transformer and a last transformer in the series. A transmitter is coupled to the primary winding of the first transformer in the series of cascaded transformers, the transmitter being configured for supplying to the primary winding a transmission signal as a function of an input signal. A receiver is coupled to the secondary winding of the last transformer of the series of cascaded transformers and is configured for receiving at the secondary winding a reception signal transmitted over the series of cascaded transformers. A predistortion module is configured for applying to the transmission signal a predistortion including an (n?1)-fold integration, where n is the number of cascaded transformers, of a transmission signal that would be supplied to the input of a sole transformer present in a single-transformer solution.
    Type: Application
    Filed: May 22, 2017
    Publication date: April 12, 2018
    Inventors: Alessandro Nizza, Roberto Aletti, Francesco Pulvirenti, Giuseppe Cantone