The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2026
Filed:
Jan. 22, 2024
Stmicroelectronics International N.v., Geneva, CH;
Marco La Pila, Gravina di Catania, IT;
Giuseppe Platania, Valverde, IT;
Placido Salvatore Battiato, Biancavilla, IT;
STMicroelectronics International N.V., Geneva, CH;
Abstract
A three-level DC-DC converter includes a power-stage with high and low-side transistors, a flying capacitor, and an inductor coupled between an output tap of the power-stage and an output node of the converter. A feedback-divider is coupled in parallel with an output capacitor between the output node and ground and generates a feedback-voltage. A ramp-generator generates a first ramp-signal based on a constant reference-voltage and generates a second ramp-signal based on a difference between a voltage across the flying capacitor and one-half the input-voltage. Control-circuitry generates an error-signal based on a comparison between the feedback-voltage and a reference, generates a first high-side control-signal and a first low-side control-signal for the power-stage, based on a comparison between the first ramp-signal and the error-signal, and generates a second high-side control-signal and a second low-side control-signal for the power-stage, based on a comparison between the second ramp-signal and the error-signal.