公开(公告)号：US10862396B2

公开(公告)日：2020-12-08

申请号：US16599450

申请日：2019-10-11

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Sebastien Ortet ,  Didier Davino ,  Cedric Thomas

IPC: H02M3/158 ,  H02M1/36

Abstract: An electronic device includes a switched-mode power supply having a first operating phase during which the output node of the switched-mode power supply is coupled by an on switch to a source of a first reference voltage. The first operating phase is followed by a second operation phase during which the output node of the switched-mode power supply is in a high impedance state. While in the second operating phase, a capacitor connected to the output node of the switched-mode power supply at least partially discharges into a load.

公开(公告)号：US11539295B2

公开(公告)日：2022-12-27

申请号：US17089213

申请日：2020-11-04

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Sebastien Ortet ,  Didier Davino ,  Cedric Thomas

IPC: H02M3/158 ,  H02M1/36

Abstract: An electronic device includes a switched-mode power supply having a first operating phase during which the output node of the switched-mode power supply is coupled by an on switch to a source of a first reference voltage. The first operating phase is followed by a second operation phase during which the output node of the switched-mode power supply is in a high impedance state. While in the second operating phase, a capacitor connected to the output node of the switched-mode power supply at least partially discharges into a load.

公开(公告)号：US11456661B2

公开(公告)日：2022-09-27

申请号：US16930535

申请日：2020-07-16

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Sebastien Ortet ,  Cedric Thomas

IPC: H02M1/36 ,  H02M3/158

Abstract: The process for starting a power supply circuit which includes a switched-mode power supply is performed using: a first phase during which, if an output voltage of the switched-mode power supply is lower than a first voltage, the switched-mode power supply operates in pulse width modulation mode to increase its output voltage up to said first voltage; and when the output voltage has reached the first voltage, a second phase during which the switched-mode power supply operates in a bypass mode.

公开(公告)号：US20240210984A1

公开(公告)日：2024-06-27

申请号：US18394621

申请日：2023-12-22

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Ayoub Hagrou ,  Cedric Thomas

IPC: G05F3/26 ,  G05F1/46

CPC classification number: G05F3/267 ,  G05F1/468

Abstract: A microcontroller includes a reference voltage generator circuit having a first transistor coupled as a diode, a second transistor coupled as a diode, a first variable resistor, an operational amplifier having a first input connected to the first transistor via the first variable resistor, and a second input connected to the second transistor, and second variable resistor having a first terminal connected to the second transistor and to the second input of the operational amplifier. A current mirror is controlled by an output of the operational amplifier and configured to replicate the current proportional to an absolute temperature of the second variable resistor. A current copier branch is connected to the second transistor via a switch, the current copier branch being configured to replicate the current proportional to the absolute temperature of the second variable resistor and inject the current through the second transistor.

公开(公告)号：US10756628B2

公开(公告)日：2020-08-25

申请号：US16407425

申请日：2019-05-09

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Michel Cuenca ,  Cedric Thomas

IPC: H02M3/158 ,  H02M1/00

Abstract: An electronic circuit includes a switched-mode power supply powering a first load via a first linear voltage regulator. The first regulator includes a transistor. The substrate and the gate of the transistor are capable of being coupled to a node of application of a power supply voltage. A method of operating the circuit is also disclosed.

公开(公告)号：US20190372460A1

公开(公告)日：2019-12-05

申请号：US16407425

申请日：2019-05-09

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Michel Cuenca ,  Cedric Thomas

IPC: H02M3/158

Abstract: An electronic circuit includes a switched-mode power supply powering a first load via a first linear voltage regulator. The first regulator includes a transistor. The substrate and the gate of the transistor are capable of being coupled to a node of application of a power supply voltage. A method of operating the circuit is also disclosed.