公开(公告)号：US20230064471A1

公开(公告)日：2023-03-02

申请号：US17885086

申请日：2022-08-10

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Laurent LOPEZ

IPC: H03K17/16

Abstract: A power switch device includes a first terminal intended to be connected to a source of a first supply potential, a second terminal configured to supply a second potential, and a third terminal intended to be connected to a second source of a third supply potential. The device includes a first PMOS transistor having a source connected to the second terminal and a drain connected to the third terminal, a second PMOS transistor having a source connected to the second terminal, and a third PMOS transistor having a source connected to the first terminal and a drain connected to the drain of the second transistor. A control circuit generates gate control signals to control operation of the first, second and third PMOS transistors dependent on the first, second, and third supply potentials.

公开(公告)号：US20210231478A1

公开(公告)日：2021-07-29

申请号：US17155880

申请日：2021-01-22

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas FROIDEVAUX ,  Laurent LOPEZ

IPC: G01F1/60 ,  H03K5/01

Abstract: An oscillating analog signal includes a succession of dampened oscillations. That oscillating analog signal is conditioned to generate an output signal including only oscillations of the oscillating analog signal which have an amplitude smaller than a first threshold. The output signal is then processed by a processing unit, where the first threshold is compatible with a maximum level of voltage tolerable by the processing unit.