公开(公告)号：FR2781949B1

公开(公告)日：2000-10-27

申请号：FR9809930

申请日：1998-08-03

Applicant: ST MICROELECTRONICS SA

Inventor： TCHAGASPANIAN MICHAEL

IPC: H03H11/48 ,  H04B1/48 ,  H04B1/44

公开(公告)号：FR2781949A1

公开(公告)日：2000-02-04

申请号：FR9809930

申请日：1998-08-03

Applicant: ST MICROELECTRONICS SA

Inventor： TCHAGASPANIAN MICHAEL

IPC: H03H11/48 ,  H04B1/48 ,  H04B1/44

公开(公告)号：DE69936169D1

公开(公告)日：2007-07-12

申请号：DE69936169

申请日：1999-08-02

Applicant: ST MICROELECTRONICS SA

Inventor： TCHAGASPANIAN MICHAEL

IPC: H04B1/48 ,  H03H11/48

公开(公告)号：FR2782581B1

公开(公告)日：2000-09-22

申请号：FR9810476

申请日：1998-08-18

Applicant: ST MICROELECTRONICS SA

Inventor： GARNIER CHRISTOPHE ,  BERNARD PATRICK ,  TCHAGASPANIAN MICHAEL

IPC: H02H9/04 ,  H02H9/02

公开(公告)号：FR2782581A1

公开(公告)日：2000-02-25

申请号：FR9810476

申请日：1998-08-18

Applicant: ST MICROELECTRONICS SA

Inventor： GARNIER CHRISTOPHE ,  BERNARD PATRICK ,  TCHAGASPANIAN MICHAEL

IPC: H02H9/04 ,  H02H9/02

Abstract: The protective circuit has a diode (D1) between the positive supply (A) and a node (N1) connected to an input/output pin (P1), and a second diode (D2) between the node and a negative or zero potential supply. A transistor (T1), in series between the node and positive supply, has a chain of diodes (1) between its collector and base, triggering conduction if an overvoltage occurs at the pin.