公开(公告)号：US20240088790A1

公开(公告)日：2024-03-14

申请号：US18451256

申请日：2023-08-17

Applicant: STMicroelectronics S.r.l.

Inventor： Ivan Floriani ,  Stefano Castorina ,  Giulia Altamura ,  Emanuele Moretti

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M1/0035

Abstract: A control device for a switching voltage regulator having a switching circuit receives a set of measurement signals including a first measurement signal indicative of an output voltage of the switching voltage regulator. A burst-mode controller is configured to monitor the output voltage with respect to a first threshold and a second threshold higher than the first threshold, and to provide, in response, a burst signal. A driving-signal generation stage is configured to provide at least one switching control signal for the switching circuit based on the burst signal and the set of measurement signals. The driving-signal generation stage has a feedback module configured to provide a control signal based on the burst signal and an error signal indicative of a difference between the first measurement signal and a reference signal.

公开(公告)号：US20230283168A1

公开(公告)日：2023-09-07

申请号：US18171946

申请日：2023-02-21

Applicant: STMicroelectronics S.r.l.

Inventor： Emanuele Moretti ,  Ivan Floriani ,  Giulia Altamura

IPC: H02M1/32 ,  H02M1/00 ,  H02M3/158

CPC classification number: H02M1/32 ,  H02M1/0009 ,  H02M3/1582

Abstract: A control module is used to control a switching buck-boost converter that includes an inductor, a capacitor, a first top switch and a second top switch, a first bottom switch and a second bottom switch and a diode coupled to the second top switch. The control module controls the switching buck-boost converter so as to alternate: first time periods, in which the second top switch is open and cycles of charge and discharge of the inductor are carried out, during which the inductor is traversed by a current that also passes through the diode and charges the capacitor; and second time periods, in which the first and second top switches are open and the first and second bottom switches are closed so that the current in the inductor recirculates, and the capacitor is discharged by a current that flows in the load.