公开(公告)号：US20210050785A1

公开(公告)日：2021-02-18

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：US20210028700A1

公开(公告)日：2021-01-28

申请号：US16933277

申请日：2020-07-20

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Michel CUENCA ,  Sebastien ORTET

IPC: H02M3/158

Abstract: A switched-mode power supply includes a voltage ramp generation circuit that generates a voltage ramp signal. The voltage ramp generation circuit includes, selectively connected in parallel, at least three capacitors. The selective connection of the capacitors is made according to a value of an internal power supply voltage of the switched-mode power supply.

公开(公告)号：US20200119644A1

公开(公告)日：2020-04-16

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：US20230412076A1

公开(公告)日：2023-12-21

申请号：US18242876

申请日：2023-09-06

Applicant: STMICROELECTRONICS (ROUSSET) SAS

Inventor： Michel CUENCA ,  Sebastien ORTET

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/0022

Abstract: A switched-mode power supply includes a voltage ramp generation circuit that generates a voltage ramp signal. The voltage ramp generation circuit includes, selectively connected in parallel, at least three capacitors. The selective connection of the capacitors is made according to a value of an internal power supply voltage of the switched-mode power supply.

公开(公告)号：US20210028687A1

公开(公告)日：2021-01-28

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.