公开(公告)号：US20240048131A1

公开(公告)日：2024-02-08

申请号：US18350380

申请日：2023-07-11

Applicant: STMicroelectronics S.r.I.

Inventor： Marco Borghese

IPC: H03K3/03 ,  H02M3/157 ,  H03K7/08 ,  H02M1/00

CPC classification number: H03K3/0315 ,  H02M3/157 ,  H03K7/08 ,  H02M1/0025

Abstract: A control circuit for a switching stage of an electronic converter includes a PWM signal generator that generates a PWM signal to drive the switching stage of the electronic converter. A loop comparator circuit receives the regulated output voltage of the electronic converter and receives a sum signal from an adder circuit. The loop comparator circuit generates a comparison signal having a first or second logic value in response to the regulated output voltage reaching the sum signal or failing to reach the sum signal. The adder circuit generates the sum signal as a sum of a reference voltage and a programmable offset voltage that is generated by a programmable voltage generator based on a digital word signal. A feedback circuit is coupled to the loop comparator circuit and the PWM signal generator, and provides the digital word signal to the programmable voltage generator.