公开(公告)号：US20230421039A1

公开(公告)日：2023-12-28

申请号：US18330754

申请日：2023-06-07

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano CASTORINA ,  Elena BRIGO ,  Ivan FLORIANI

IPC: H02M1/00

CPC classification number: H02M1/0025 ,  H02M1/0009 ,  H02M1/0012 ,  H02M1/0019

Abstract: Provided is a control device is for a switching voltage regulator having a switching circuit. The control device receives input and output voltages of the switching circuit and a measurement signal indicative of a current of the switching circuit. The control device has: a feedback module that detects an error signal indicative of a difference between the output voltage and a nominal voltage, and provides a control signal as a function of the error signal; a threshold-correction module that provides offset and ramp signals; and a driving-signal generation module coupled to the feedback and threshold-correction modules, which receives the measurement signal, compares the measurement signal with a threshold and, in response, provides a modulated signal for driving the switching circuit. The threshold is a function of the control, offset and ramp signals. The threshold-correction module provides the offset signal as a function of the input or output voltages.

公开(公告)号：US20230266382A1

公开(公告)日：2023-08-24

申请号：US17678772

申请日：2022-02-23

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Gaudenzia BAGNATI ,  Stefano CASTORINA ,  Valerio BENDOTTI

IPC: G01R31/28 ,  H03K17/687 ,  H03K5/24 ,  G01R31/54 ,  G01R19/165

CPC classification number: G01R31/2851 ,  H03K17/6874 ,  H03K5/24 ,  G01R31/54 ,  G01R19/16571 ,  H03K2217/0063 ,  H03K2217/0072

Abstract: An integrated circuit includes a plurality of power transistor driver channels for driving external loads. The driver channels can be selectively configured as high-side (HS) or low-side (LS) driver channels. The integrated circuit includes, for each driver channel, a respective on-state test circuit and a respective controller. The on-state test circuits can be selectively configured to test for HS overcurrent conditions, LS overcurrent conditions, HS open load conditions, and LS open load conditions.