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:
Oct. 10, 2023
Filed:
Nov. 15, 2021
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Alessandro Nicolosi, Dresano, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
In an embodiment a direct current to direct current (DC-DC) converter includes a first switching circuit configured to switch a supply of an input voltage to an energy storage circuit configured to generate an output voltage, a driving circuit configured to drive the first switching circuit according to a comparison between the output voltage and a comparison voltage and a soft-start circuit configured to raise the comparison voltage from a start voltage to a target voltage during a soft-start phase of the DC-DC converter having a soft-start duration, wherein the soft-start circuit comprises a soft-start capacitor configured to provide the comparison voltage during the start phase, the soft-start capacitor having a soft-start capacitance, an auxiliary capacitor having an auxiliary capacitance, a second switching circuit configured to alternately charge and discharge the auxiliary capacitor with an auxiliary current according to a clock signal having a clock frequency and a charging circuit.