公开(公告)号：US10067200B2

公开(公告)日：2018-09-04

申请号：US15076955

申请日：2016-03-22

Applicant: STMicroelectronics (Alps) SAS

Inventor： Bruno Leduc ,  Pascal Bernon ,  Stephane Clin

IPC: G01R31/40 ,  G01R15/14 ,  G01R3/00

Abstract: A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage.

公开(公告)号：US10670666B2

公开(公告)日：2020-06-02

申请号：US16047743

申请日：2018-07-27

Applicant: STMicroelectronics (Alps) SAS

Inventor： Bruno Leduc ,  Pascal Bernon ,  Stephane Clin

IPC: G01R31/40 ,  G01R19/165 ,  G01R3/00 ,  G01R15/14

Abstract: A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage.