公开(公告)号：US20170115359A1

公开(公告)日：2017-04-27

申请号：US15076955

申请日：2016-03-22

Applicant: STMicroelectronics (Alps) SAS

Inventor： Bruno LEDUC ,  Pascal BERNON ,  Stephane CLIN

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

CPC classification number: G01R31/40 ,  G01R3/00 ,  G01R15/14 ,  G01R19/165

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：US20180335481A1

公开(公告)日：2018-11-22

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

CPC classification number: G01R31/40 ,  G01R3/00 ,  G01R15/14 ,  G01R19/165

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.