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：US20220148962A1

公开(公告)日：2022-05-12

申请号：US17580055

申请日：2022-01-20

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Samuel BOSCHER ,  Yann REBOURS ,  Michel CUENCA

IPC: H01L23/528 ,  H01L23/50 ,  H01L23/522

Abstract: An electronic chip includes a shared strip with first and second spaced apart portions extending along a direction of elongation and an intermediate connecting portion extending between the first and second portions. The second portion is connected to a pad that has a greater surface area than the second portion. The first portion is formed by a first plurality of metallic strips. Metallic strips of the first plurality of metallic strips that are adjacent and side by side are separated by a distance smaller than a width of those metallic strips. The second portion is formed by a second plurality of metallic strips. Metallic strips of the second plurality of metallic strips that are adjacent and side by side are separated by a distance smaller than a width of those metallic strips.

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：US20130207720A1

公开(公告)日：2013-08-15

申请号：US13752538

申请日：2013-01-29

Applicant: STMICROELECTRONICS (ROUSSET) SAS

Inventor： Michel CUENCA ,  Laurent Truphemus

IPC: H03F3/45

CPC classification number: H03F3/45076 ,  H03F1/086 ,  H03F3/45192 ,  H03F3/45771 ,  H03F2200/36 ,  H03F2200/447 ,  H03F2203/45322 ,  H03F2203/45391 ,  H03F2203/45392 ,  H03F2203/45471

Abstract: An operational amplifier may include a differential stage comprising two transistors whose gates are respectively linked to the two inputs of the operational amplifier. The sources of the two transistors may be linked to a first current source whose delivered current depends negatively on temperature variations and to a second current source whose delivered current is proportional to absolute temperature. The sum of these two currents may be less dependent on temperature, in that this link of the sources of the two transistors with the two current sources is effected respectively by way of two resistors, and in that the current which passes through the two transistors is imposed of proportional with temperature type, so as to allow substantially temperature-independent elimination of the offset voltage of the operational amplifier while obtaining a temperature-independent constant gain-bandwidth product.

Abstract translation: 运算放大器可以包括差分级，其包括两个晶体管，其栅极分别连接到运算放大器的两个输入端。 两个晶体管的源极可以连接到其传递的电流取决于温度变化的第一电流源以及传递的电流与绝对温度成比例的第二电流源。 这两个电流的总和可能不太依赖于温度，因为两个晶体管与两个电流源的源极的这个连接分别通过两个电阻器实现，并且通过两个晶体管的电流是 施加与温度类型成比例的，以便在获得与温度无关的恒定增益带宽积的同时，允许基本上温度独立地消除运算放大器的偏移电压。