公开(公告)号：US20220160314A1

公开(公告)日：2022-05-26

申请号：US17529543

申请日：2021-11-18

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics SA

Inventor： Gilles GASIOT ,  Severin TROCHUT ,  Olivier LE NEEL ,  Victor MALHERBE

IPC: A61B6/00 ,  G01T1/24

Abstract: An X-ray detector includes a first circuit with an NPN-type bipolar transistor and a second circuit configured to compare a voltage at a terminal of the NPN-type bipolar transistor with a reference value substantially equal to a value of the terminal voltage which would occur when the first circuit has been exposed to a threshold quantity of X-rays.

公开(公告)号：US20190386567A1

公开(公告)日：2019-12-19

申请号：US16437923

申请日：2019-06-11

Applicant: STMicroelectronics SA

Inventor： Francois AGUT ,  Severin TROCHUT

IPC: H02M3/158 ,  H02M1/36 ,  H02M1/08

Abstract: A switched-mode power converter device includes an inductive element coupling a first node receiving an input voltage to a second node. A first transistor couples the second node to a third node generating an output voltage. A control circuit includes a first switch coupling the third node to a control terminal of the first transistor.